CN113110727B - Loongson 3A4000 power supply system, design method and processor system - Google Patents
Loongson 3A4000 power supply system, design method and processor system Download PDFInfo
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
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- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
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Abstract
Loongson 3A4000 power supply system, design method and processor system, loongson 3A4000 power supply system includes: the first power transformation unit is used for outputting a first intermediate voltage and a first output voltage in sequence; the second power transformation unit is used for converting the input power supply into a second output voltage, a third output voltage and a fourth output voltage under the enabling of the first output voltage, and the third output voltage and the fourth output voltage are output after the second output voltage; the third power transformation unit is used for converting the first output voltage into a fifth output voltage, a sixth output voltage and a second intermediate voltage, wherein the sixth output voltage and the second intermediate voltage are output after the fifth output voltage; and the fourth power transformation unit is used for converting the input power supply into a seventh output voltage and an eighth output voltage under the enabling of the second intermediate voltage. The invention has extremely high sequential control capability, simple circuit structure, no need of a power supply controller, and low cost on the premise of ensuring stable power supply, and is suitable for industrialized popularization.
Description
Technical Field
The invention belongs to the field of computer data processing, and particularly relates to a Loongson 3A4000 power supply system, a design method and a processor system.
Background
Loongson 3A4000 is a powerful domestic processor with good data processing capability, and is a domestic processor, so that the processor is deeply applied in a plurality of important fields to avoid foreign technical blockages. Many factors are involved in ensuring that a processor is capable of stable operation, one of the main factors being a good power supply system. At present, in terms of power supply system aiming at Loongson 3A4000, various large supporting manufacturers also put forward some supporting products, but two problems generally exist: on the one hand, most products do not have good power along control ability, lead to the power supply sequence to appear the error easily, lead to Loongson 3A4000 operation unstable, on the other hand, in order to guarantee along control ability, the peripheral power supply circuit structure of design is too complicated, and partial product even need to add special power supply controller auxiliary control, leads to with high costs, and the maintenance difficulty.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a Loongson 3A4000 power supply system, and the Loongson 3A4000 power supply system solves the problems of poor sequential control capability and complex circuit structure of the power supply system. The invention also provides a design method of the Loongson 3A4000 power supply system and a processor system.
According to an embodiment of the first aspect of the invention, the Loongson 3A4000 power supply system comprises the following steps:
The first power transformation unit is provided with an input end and two output ends, and is used for converting an input power supply connected with the input end into a first intermediate voltage and a first output voltage, and correspondingly outputting the first intermediate voltage and the first output voltage by the first output end and the second output end; the first output voltage is output after the first intermediate voltage;
the second power transformation unit is provided with three output ends, an input end connected with the input power supply and an enabling end connected with the second output end of the first power transformation unit, and is used for converting the input power supply into a second output voltage, a third output voltage and a fourth output voltage under the enabling of the first output voltage and outputting the second output voltage, the third output voltage and the fourth output voltage correspondingly by the first output end, the second output end and the third output end respectively, and the third output voltage and the fourth output voltage are output after the second output voltage;
The third power transformation unit is provided with three output ends and an input end connected with the second output end of the first power transformation unit, and is used for converting the first output voltage into a fifth output voltage, a sixth output voltage and a second intermediate voltage, and the fifth output voltage, the sixth output voltage and the second intermediate voltage are respectively output correspondingly by the first output end, the second output end and the third output end;
The fourth power transformation unit is provided with two output ends, an input end connected with the input power supply and an enabling end connected with a third output end of the third power transformation unit, and is used for converting the input power supply into a seventh output voltage and an eighth output voltage under the enabling of the second intermediate voltage and outputting the seventh output voltage and the eighth output voltage correspondingly by the two output ends respectively; the first output voltage to the eighth output voltage are all used for supplying power to the main processor.
The Loongson 3A4000 power supply system provided by the embodiment of the invention has at least the following technical effects: the first power transformation unit, the second power transformation unit, the third power transformation unit and the fourth power transformation unit can realize different voltage conversion on an input power supply, so that the whole power supply system can meet the requirement of Loongson 3A4000 on multi-voltage power supply. Meanwhile, the control of the sequential output of a plurality of output voltages is realized by strictly controlling the output sequence of each power transformation unit and skillfully utilizing the previous stage power transformation unit as the enabling signal of the next stage power transformation unit, so that the requirement of Loongson 3A4000 on the power supply voltage sequence is met. Compared with other power supply systems, the Loongson 3A4000 power supply system provided by the embodiment of the invention has extremely high sequential control capability, is extremely simple in circuit structure, does not need to increase a power supply controller, can effectively reduce the cost of the power supply system on the premise of ensuring stable power supply, and is suitable for industrialized popularization.
According to some embodiments of the invention, the first power conversion unit includes:
The first main power supply module is provided with an input end, a first output end, a second output end, a first enabling end and a second enabling end which are used for respectively controlling the output states of the first output end and the second output end, wherein the input end and the first enabling end are connected with the input power supply, the first output end is used for outputting a third intermediate voltage, and the second output end is used for outputting a first output voltage;
And the input end of the second main power supply module is connected with the first output end of the first main power supply module, and the output end of the second main power supply module is connected with the second enabling end of the first main power supply module and is used for converting the third intermediate voltage into the first intermediate voltage and outputting the first intermediate voltage.
According to some embodiments of the invention, the second power transformation unit comprises:
The third main power supply module is provided with an input end, a first output end, a second output end, a first enabling end and a second enabling end, wherein the first enabling end and the second enabling end are used for respectively controlling the output states of the first output end and the second output end;
The fourth main power module is provided with an input end, a first output end and a first enabling end for controlling the output state of the first output end, wherein the input end of the fourth main power module is connected with the input power supply, the first enabling end is connected with the second output end of the third main power module, and the first output end is used for outputting fourth output voltage.
According to some embodiments of the invention, the third power conversion unit includes:
the input end of the fifth main power supply module is connected with the second output end of the first power transformation unit, and the output end of the fifth main power supply module is used for outputting a fifth output voltage converted by the first output voltage;
The input end of the sixth main power supply module is connected with the output end of the fifth main power supply module, and the output end of the sixth main power supply module is connected with the enabling end of the fourth power transformation unit and is used for converting the fifth output voltage into a second intermediate voltage and outputting the second intermediate voltage;
And the input end of the seventh main power supply module is connected with the output end of the fifth main power supply module, and the output end is used for outputting a sixth output voltage converted by the fifth output voltage.
According to some embodiments of the invention, the fourth power conversion unit includes:
The eighth main power supply module is provided with an input end, an output end and an enabling end for controlling the output state of the output end, wherein the input end of the eighth main power supply module is connected with the input power supply, the enabling end is in input connection with the third output end of the third power transformation unit, and the output end is used for outputting a seventh output voltage;
and the ninth main power supply module is provided with an input end, an output end and an enabling end for controlling the output state of the output end, wherein the input end of the ninth main power supply module is connected with the input power supply, the enabling end is connected with the third output end of the third power transformation unit in an input way, and the output end is used for outputting eighth output voltage.
According to some embodiments of the invention, the loongson 3a4000 power supply system further comprises:
The input end of the first memory power supply module is connected with the second output end of the first power transformation unit, and the output end of the first memory power supply module is used for outputting a first memory power supply voltage;
the second memory power supply module is provided with an input end, an output end and a reference voltage end, wherein the input end of the second memory power supply module is connected with the second output end of the first power transformation unit, the reference voltage end is connected with the second output end of the second power transformation unit, and the output end is used for outputting a second memory power supply voltage;
the third memory power supply module is provided with an input end, an output end and a reference voltage end, wherein the input end of the third memory power supply module is connected with the first output end of the first power transformation unit, the reference voltage end is connected with the third output end of the second power transformation unit, and the output end is used for outputting third memory power supply voltage.
According to some embodiments of the invention, the loongson 3a4000 power supply system further comprises:
The input end of the first bridge piece power supply module is connected with the first output end of the first power transformation unit, and the output end is used for outputting a first bridge piece power supply voltage;
The input end of the second bridge piece power supply module is connected with the first output end of the third power transformation unit, and the output unit is used for outputting a second bridge piece power supply voltage;
the input end of the third bridge piece power supply module is connected with the first output end of the third power transformation unit, and the output unit is used for outputting a fourth intermediate voltage;
And the fourth bridge piece power supply module is provided with an input end, an output end and a reference voltage end, the input end of the fourth bridge piece power supply module is connected with the first output end of the first power transformation unit, the reference voltage end is connected with the output end of the third bridge piece power supply module, and the output end is used for outputting the third bridge piece power supply voltage.
According to some embodiments of the invention, the loongson 3a4000 power supply system further comprises:
And the input end of the tenth main power supply module is connected with the first output end of the third power transformation unit, the output unit is used for outputting a ninth output voltage, and the output path of the ninth output voltage is consistent with that of the sixth output voltage.
According to a second aspect of the present invention, a design method of a Loongson 3A4000 power supply system is used for completing the Loongson 3A4000 power supply system, and includes the following steps:
designing a first power transformation unit, a second power transformation unit, a third power transformation unit and a fourth power transformation unit according to power supply voltages required by a plurality of power supply ports of a main processor;
and according to the power supply sequence of the power supply ports of the main processor, connecting the second output end of the first power transformation unit with the enabling end of the second power transformation unit and the input end of the third power transformation unit respectively, and connecting the third output end of the third power transformation unit with the enabling end of the fourth power transformation unit.
The design method of the Loongson 3A4000 power supply system provided by the embodiment of the invention has at least the following technical effects: according to the design method of the Loongson 3A4000 power supply system, the first power transformation unit, the second power transformation unit, the third power transformation unit and the fourth power transformation unit are designed according to the power supply requirement of the Loongson 3A4000, and meanwhile, the control of the sequential output of a plurality of output voltages is achieved by strictly designing the output sequence of each power transformation unit and skillfully utilizing the previous stage power transformation unit as an enabling signal of the next stage power transformation unit, so that the requirement of the Loongson 3A4000 on the power supply voltage sequence is met. Compared with other power supply systems, the power supply system designed by the Loongson 3A4000 power supply system design method provided by the embodiment of the invention has extremely high sequential control capability, is extremely simple in circuit structure, does not need to increase a power supply controller, can effectively reduce the cost of the power supply system on the premise of ensuring stable power supply, and is suitable for industrialized popularization.
According to some embodiments of the present invention, the foregoing tornado 3a4000 power supply system design method further includes the following steps:
Designing a first memory power supply module, a second memory power supply module and a third memory power supply module according to power supply voltages required by a plurality of power supply ports of an internal memory;
According to the power supply sequence of the power supply ports of the internal memory, the input end of the first memory power supply module is connected with the second output end of the first power transformation unit, the input end of the second memory power supply module is connected with the second output end of the first power transformation unit, the reference voltage end is connected with the second output end of the second power transformation unit, the input end of the third memory power supply module is connected with the first output end of the first power transformation unit, and the reference voltage end is connected with the third output end of the second power transformation unit.
According to some embodiments of the present invention, the foregoing tornado 3a4000 power supply system design method further includes the following steps:
Designing a first bridge piece power supply module, a second bridge piece power supply module, a third bridge piece power supply module and a fourth bridge piece power supply module according to power supply voltages required by a plurality of power supply ports of the bridge pieces;
According to the power supply sequence of the power supply ports of the bridge pieces, the input end of the first bridge piece power supply module is connected with the first output end of the first power transformation unit, the input ends of the second bridge piece power supply module and the third bridge piece power supply module are connected with the first output end of the third power transformation unit, the input end of the fourth bridge piece power supply module is connected with the first output end of the first power transformation unit, and the reference voltage end is connected with the output end of the third bridge piece power supply module.
The processor system according to the embodiment of the third aspect of the invention comprises a main processor and any Loongson 3A4000 power supply system connected with the main processor.
The processor system according to the embodiment of the invention has at least the following technical effects: through increasing above-mentioned Loongson 3A4000 power supply system at main processor Loongson 3A4000 periphery, can effectually guarantee the steady operation of Loongson 3A4000, and through integrating the back with Loongson 3A4000 and above-mentioned Loongson 3A4000 power supply system, also be convenient for realize industrialization popularization.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing or additional aspects and advantages of the invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a partial design drawing a of a Loongson 3A4000 power supply system according to an embodiment of the present invention;
Fig. 2 is a partial design b of a Loongson 3A4000 power supply system according to an embodiment of the present invention;
FIG. 3 is a schematic circuit diagram of a first main power module according to an embodiment of the invention;
FIG. 4 is a schematic circuit diagram of a second main power module according to an embodiment of the invention;
Fig. 5 is a schematic circuit diagram of a second memory power module according to an embodiment of the invention.
Reference numerals:
A first power conversion unit 100, a first main power module 110, a second main power module 120,
A second power transformation unit 200, a third main power module 210, a fourth main power module 220,
A third power transformation unit 300, a fifth main power module 310, a sixth main power module 320, a seventh main power module 330,
A fourth power conversion unit 400, an eighth main power module 410, a ninth main power module 420,
A first memory power supply module 510, a second memory power supply module 520, a third memory power supply module 530,
A first bridge chip power module 610, a second bridge chip power module 620, a third bridge chip power module 630, a fourth bridge chip power module 640,
A tenth main power module 710.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that references to orientation, such as upper, lower, front, rear, left, right, etc., are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be taken as limiting the invention.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
A Loongson 3A4000 power supply system according to an embodiment of the first aspect of the present invention is described below with reference to FIGS. 1 to 5.
According to an embodiment of the first aspect of the invention, the Loongson 3A4000 power supply system comprises: the first power transformation unit 100, the second power transformation unit 200, the third power transformation unit 300, and the fourth power transformation unit 400.
The first power transformation unit 100 has an input end and two output ends, and is used for converting an input power supply 12v_in connected with the input end into a first intermediate voltage VCC3_sb and a first output voltage VCC3, and correspondingly outputting the first output end and the second output end; the first output voltage VCC3 is output after the first intermediate voltage VCC 3_sb;
The second transforming unit 200 has three output terminals, an input terminal connected to the input power supply 12v_in, and an enable terminal connected to the second output terminal of the first transforming unit 100, and is configured to convert the input power supply 12v_in into a second output voltage VCC1_3v_vddp, a third output voltage VCC1_2v_ddr4, and a fourth output voltage VCC1_2v_ddr4_c2 under the enable of the first output voltage VCC3, and output the second output terminal, the third output terminal, and the third output voltage VCC1_2v_ddr4, and the fourth output voltage VCC1_2v_ddr4_c2 are all output after the second output voltage VCC 1_3v_vddp;
A third transforming unit 300 having three output terminals and an input terminal connected to the second output terminal of the first transforming unit 100, for converting the first output voltage VCC3 into a fifth output voltage VCC1_8v, a sixth output voltage VCC 1_2v_c0_pll, a second intermediate voltage VCC1_2v_pch, and being output correspondingly by the first output terminal, the second output terminal, and the third output terminal, respectively, the sixth output voltage VCC1_15v_c0_pll, and the second intermediate voltage VCC1_2v_pch being output after the fifth output voltage VCC 1_8v;
A fourth power transforming unit 400 having two output terminals, an input terminal connected to the input power supply 12v_in, and an enable terminal connected to the third output terminal of the third power transforming unit 300, for converting the input power supply 12v_in into a seventh output voltage vcore1_15v and an eighth output voltage vcore1_15v_c2 under the enable of the second intermediate voltage vcore1_2v_pch, and being output by the two output terminals, respectively; the first output voltage VCC3 to the eighth output voltage vcore1_15v_c2 are all used to power the main processor.
Referring to fig. 1 and 2, the first power conversion unit 100 has an enable end, but the enable end is directly connected to the input end, so that the input power supply 12v_in can be converted only by requiring power to the input end, the first intermediate voltage VCC3_sb and the first output voltage VCC3 can be sequentially converted in the conversion process, and the generation of the first output voltage VCC3 can be converted only after the generation of the first intermediate voltage VCC3_sb, so that the output of the input power supply 12v_in, the first intermediate voltage VCC3_sb and the first output voltage VCC3 in time sequence can be ensured.
The second power transformation unit 200 also converts the input power supply 12v_in, but in order to ensure that the voltage output by the second power transformation unit 200 can be input to the enable terminal of the second power transformation unit 200 after the first output voltage VCC3, the first output voltage VCC3 is used, and the input power supply 12v_in is converted into the second output voltage VCC1_3v_vddp, the third output voltage VCC1_2v_ddr4, and the fourth output voltage VCC1_2v_ddr4_c2 only when the first output voltage VCC3 is input. In order to ensure that the third output voltage VCC1_2v_ddr4 and the fourth output voltage VCC1_2v_ddr4_c2 are output after the second output voltage VCC1_3v_vddp, the second output voltage VCC1_3v_vddp may be used as an enable signal for the third output voltage VCC1_2v_ddr4 and the fourth output voltage VCC1_2v_ddr4_c2.
The third power transformation unit 300 switches to the first output voltage VCC3, where it has been determined that the output of the third power transformation unit 300 is necessarily after the first power transformation unit 100. The third transforming unit 300 converts the first output voltage VCC3 into a fifth output voltage VCC1_8v, which is outputted from the first output terminal, and further converts the fifth output voltage VCC1_8v into a sixth output voltage VCC1_15v_c0_pll, and the second intermediate voltage VCC1_2v_pch, which is outputted from the second output terminal and the third output terminal, respectively, so that the sixth output voltage VCC1_15v_c0_pll and the second intermediate voltage VCC1_2v_pch can be outputted after the fifth output voltage VCC1_8v, thereby satisfying the timing requirement.
The fourth transforming unit 400 still converts the input power supply 12v_in, but the input voltage at the enabling terminal is the second intermediate voltage VCC1_2v_pch outputted by the third transforming unit 300, so that the fourth transforming unit 400 outputs the seventh output voltage vcore1_15v and the eighth output voltage vcore1_15v_c2 converted by the input power supply 1v_in from two output terminals after the third transforming unit 300 outputs the seventh output voltage vcore1_15v_c2.
The first power transformation unit 100, the second power transformation unit 200, the third power transformation unit 300 and the fourth power transformation unit 400 are substantially different power conversion circuits, and the specifically converted output voltage is designed according to the requirements of the Loongson 3A4000, so that all the voltage requirements can be met. After the power conversion circuits are designed, the enabling signals are ingeniously utilized to carry out series connection among the circuits, strict time sequence control is completed, and stable power supply to the Loongson 3A4000 is achieved.
According to the Loongson 3A4000 power supply system provided by the embodiment of the invention, the first power transformation unit 100, the second power transformation unit 200, the third power transformation unit 300 and the fourth power transformation unit 400 can all realize conversion of an input power supply 12V_IN, so that the whole power supply system can meet the requirement of the Loongson 3A4000 on multi-voltage power supply. Meanwhile, the control of the sequential output of a plurality of output voltages is realized by strictly controlling the output sequence of each power transformation unit and skillfully utilizing the previous stage power transformation unit as the enabling signal of the next stage power transformation unit, so that the requirement of Loongson 3A4000 on the power supply voltage sequence is met. Compared with other power supply systems, the Loongson 3A4000 power supply system provided by the embodiment of the invention has extremely high sequential control capability, is extremely simple in circuit structure, does not need to increase a power supply controller, can effectively reduce the cost of the power supply system on the premise of ensuring stable power supply, and is suitable for industrialized popularization.
A specific port for supplying the Loongson 3A4000 with the first output voltage VCC3 to the eighth output voltage VCORE1_15V_C2 will be briefly described here:
first output voltage VCC3: vdde_io, vdde_3v3 ports;
the second output voltage VCC1_3V_VDDP: VDDP ports;
The third output voltage VCC1_2v_ddr4 and the fourth output voltage VCC1_2v_ddr4_c2: vdde_ddr, vdde_1v2 ports;
Fifth output voltage VCC1_8v: vdde_1v8 port;
a sixth output voltage VCC1_15V_C0_PLL：PLL_SYS_AVDD、PLL_SE_VDD、PLL_SE_VDD、PLL_HT1_DVDD、PLL_HT1_AVDD、PLL_HT0_DVDD、PLL_HT0_AVDD、PLL_DDRPHY_VDD、PLL_DDR_DVDD、PLL_DDR_AVDD port;
The seventh output voltage vcore1_15v and the eighth output voltage vcore1_15v_c2: VDD port.
In some embodiments of the present invention, the first power transforming unit 100 includes: a first main power module 110, a second main power module 120.
The first main power module 110 has an input terminal, a first output terminal, a second output terminal, and a first enable terminal and a second enable terminal for controlling output states of the first output terminal and the second output terminal, respectively, wherein the input terminal and the first enable terminal are connected with the input power source 12v_in, the first output terminal is used for outputting a third intermediate voltage VCC, and the second output terminal is used for outputting a first output voltage VCC3;
the second main power module 120 has an input terminal connected to the first output terminal of the first main power module 110, and an output terminal connected to the second enable terminal of the first main power module 110, for converting the third intermediate voltage VCC into the first intermediate voltage VCC3_sb and outputting the first intermediate voltage vcc_sb.
Referring to fig. 1,3 and 4, the first enable terminal of the first main power module 110 is directly controlled by the input power source 12v_in, so that the input power source 12v_in is converted into the third intermediate voltage VCC at the first time of powering up the entire power supply system, and then the second main power module 120 is further utilized to convert the third intermediate voltage VCC into the first intermediate voltage VCC3_sb. The second enable terminal of the first main power module 110 starts to convert the input power supply 12v_in to the first output voltage VCC3 after receiving the first intermediate voltage VCC3_sb. The first intermediate voltage VCC3_sb and the first output voltage VCC3 are directly and effectively output by using the second enable terminal of the first main power supply module 110. In some embodiments of the invention, the first main power module 110 employs an LTM4628 and the second main power module 120 employs TPS74401.
In some embodiments of the present invention, the second power transformation unit 200 includes: a third main power module 210, a fourth main power module 220.
The third main power module 210, which has an input terminal, a first output terminal, a second output terminal, a first enable terminal and a second enable terminal for controlling output states of the first output terminal and the second output terminal, respectively, the input terminal is connected to the input power 12v_in, the second enable terminal is connected to the second output terminal of the first power conversion unit 100, the second output terminal is used for outputting a second output voltage VCC1_3v_vddp, the first enable terminal is used for receiving a second output voltage VCC1_3v_vddp, and the first output terminal is used for outputting a third output voltage VCC1_2v_ddr4;
The fourth main power module 220 has an input terminal connected to the input power 12v_in, a first output terminal connected to the second output terminal of the third main power module 210, and a first enable terminal for controlling an output state of the first output terminal, wherein the first output terminal is configured to output a fourth output voltage VCC1_2v_ddr4_c2.
Referring to fig. 1 and 3, two output terminals of the third main power module 210 are respectively controlled by the second output voltage VCC1_3v_vddp and the first output voltage VCC3, and the first output voltage VCC3 is generated first, so that the second output terminal of the third main power module 210 outputs a voltage signal which is exactly the second output voltage VCC1_3v_vddp, thus ensuring that the second output voltage VCC1_3v_vddp must be generated after the first output voltage VCC 3. After the second output voltage VCC1_3v_vddp is generated, the second output voltage is further output to the first enable terminal of the third main power module 210 and the first enable terminal of the fourth main power module 220, so that the third main power module 210 and the fourth main power module 220 further output the third output voltage VCC1_2v_ddr4 and the fourth output voltage VCC1_2v_ddr4_c2. In some embodiments of the present invention, the LTM4628 is used by both the third main power module 210 and the fourth main power module 220, and the schematic diagram may be designed with reference to the schematic circuit diagram of the first main power module 110. In some embodiments of the present invention, the fourth main power module 220 further has a second enable terminal and a second output terminal, where the second enable terminal is controlled by the first output voltage VCC3, and is capable of outputting a standby voltage vcc_1v, which can be used as a power supply of the bridge.
In some embodiments of the present invention, the third power transformation unit 300 includes: a fifth main power module 310, a sixth main power module 320, and a seventh main power module 330.
A fifth main power module 310, an input terminal of which is connected to the second output terminal of the first power conversion unit 100, and an output terminal of which is configured to output a fifth output voltage VCC1_8v converted by the first output voltage VCC 3;
The input end of the sixth main power module 320 is connected to the output end of the fifth main power module 310, and the output end of the sixth main power module is connected to the enable end of the fourth power transformation unit 400, and is used for converting the fifth output voltage VCC1_8v into the second intermediate voltage VCC1_2v_pch and outputting the second intermediate voltage VCC 1_2v_pch;
the seventh main power module 330 has an input terminal connected to the output terminal of the fifth main power module 310, and an output terminal for outputting the sixth output voltage VCC1_15v_c0_pll after being converted by the fifth output voltage VCC 1_8v.
Referring to fig. 1, 2 and 4, the output terminal of the fifth main power module 310 is connected to the input terminals of the sixth main power module 320 and the seventh main power module 330, respectively. Here, the fifth main power module 310 converts the first output voltage VCC3 into the fifth output voltage VCC1_8v, and thus it can be ensured that all outputs of the fifth main power module 310 are after the first power transformation unit 100, which is one time total timing control. The fifth output voltage VCC1_8V is converted into the second intermediate voltage VCC1_2V_PCH and the sixth output voltage VCC1_15V_C0_PLL by the sixth and seventh main power modules 320 and 330, respectively. This allows the second intermediate voltage vcc1_2v_pch and the sixth output voltage vcc1_15v_c0_pll to be generated always after the fifth output voltage vcc1_8v. In some embodiments of the present invention, the fifth main power module 310, the sixth main power module 320, and the seventh main power module 330 all use TPS74401, and the schematic diagram may refer to the schematic circuit diagram of the second main power module 120.
In addition, the fifth main power module 310, the sixth main power module 320, and the seventh main power module 330 also have an enable terminal, but only needs to ensure that the enabling can be achieved when the first output voltage VCC3 is input, so that the enabling signals of the fifth main power module 310, the sixth main power module 320, and the seventh main power module 330 can be virtually any signals before the first output voltage VCC3 is generated, and in extreme cases, the first output voltage VCC3 can also be directly used as the enabling signal, and the use requirement can also be satisfied. Referring to fig. 2, in some embodiments of the present invention, the fifth, sixth, and seventh main power modules 310, 320, 330 use a third intermediate voltage VCC.
In some embodiments of the present invention, the fifth main power module 310 includes two voltage conversion sub-modules connected in series, and two stages of conversion of the first output voltage VCC3 are implemented through the series connection, so as to implement low-cost and high-stability conversion of the fifth output voltage VCC1_8v. Both voltage converting sub-modules of the fifth main power module 310 adopt TPS74401, and the schematic diagram can be referred to the schematic circuit diagram of the second main power module 120.
In some embodiments of the present invention, the fourth power conversion unit 400 includes: eighth main power module 410, ninth main power module 420.
An eighth main power module 410 having an input terminal connected to the input power 12v_in, an output terminal for outputting a seventh output voltage vcore1_15v, and an enable terminal for controlling an output state of the output terminal, the enable terminal being connected to the third output terminal of the third power conversion unit 300;
The ninth main power module 420 has an input terminal connected to the input power supply 12v_in, an output terminal for outputting the eighth output voltage vcore1_15v_c2, and an enable terminal for controlling the output state of the output terminal, and the enable terminal is connected to the third output terminal of the third power conversion unit 300.
Referring to fig. 1 to 3, the eighth and ninth main power modules 410 and 420 directly convert the input power 12v_in, so that voltage conversion can be achieved only after the enable signal is received by the enable signal. The second intermediate voltage VCC1_2v_pch is used for both the enable signals, so that the third power conversion unit 300 starts to convert after outputting the second intermediate voltage VCC1_2v_pch, thereby ensuring the timing requirement of power supply. In some embodiments of the present invention, the eighth main power module 410 and the ninth main power module 420 both employ the LTM4628, and reference may be made to the schematic circuit diagram of the first main power module 110.
In some embodiments of the invention, the loongson 3a4000 power supply system further comprises: a first memory power supply module 510, a second memory power supply module 520, and a third memory power supply module 530.
The input end of the first memory power module 510 is connected to the second output end of the first power conversion unit 100, and the output end is used for outputting a first memory supply voltage VCC2_5v_c2;
The second memory power module 520 has an input end, an output end, and a reference voltage end, the input end is connected to the second output end of the first power conversion unit 100, the reference voltage end is connected to the second output end of the second power conversion unit 200, and the output end is used for outputting a second memory power supply voltage CPU0_mem_vtt;
The third memory power module 530 has an input terminal connected to the first output terminal of the first power transformation unit 100, an output terminal connected to the third output terminal of the second power transformation unit 200, and a reference voltage terminal for outputting a third memory power supply voltage CPU1 MEM VTT.
Referring to fig. 1 to 5, the first memory power module 510 converts the first output voltage VCC3 and outputs the first memory power supply voltage VCC2_5v_c2, and the principle of the enable signal can refer to the sixth main power module 320, which only needs to ensure that the enable signal can reach at least synchronously when the first output voltage VCC3 is input. The second memory power module 520 and the third memory power module 530 have substantially the same operation process, and both the first intermediate voltage VCC3 SB is used as an input, and the third output voltage VCC1_2v_ddr4 and the fourth output voltage VCC1_2v_ddr4_c2 are used as reference voltages, respectively, so as to output the second memory power supply voltage CPU0_mem_vtt and the third memory power supply voltage CPU1_mem_vtt. Thus, the time sequence requirement is ensured, and the power-on time sequence matching between the internal memory and the main processor can be completed. In some embodiments of the present invention, the first memory power module 510 adopts TPS74401, the second memory power module 520 and the third memory power module 530 adopt TPS51200, the first memory power module 510 adopts TPS74401 and reference may be made to the schematic design diagram of the second main power module 120, and the second memory power module 520 and the third memory power module 530 may refer to fig. 5. Here, a brief description will be made of the internal memory DDR power supply port, the first memory power supply voltage VCC2_5v_c2 is output to the power supply port of the DDR, and the second memory power supply voltage CPU0_mem_vtt and the third memory power supply voltage CPU1_mem_vtt serve as matching power sources of the DDR.
In some embodiments of the invention, the loongson 3a4000 power supply system further comprises: a first bridge tile power module 610, a second bridge tile power module 620, a third bridge tile power module 630, and a fourth bridge tile power module 640.
The first bridge piece power supply module 610 has an input end connected to a first output end of the first power conversion unit 100, and an output end for outputting a first bridge piece power supply voltage VCC1_1v_s5;
the second bridge chip power module 620, an input end of which is connected to the first output end of the third power transformation unit 300, outputs a single output voltage VCC1_2v_pch_pll for outputting the second bridge chip power supply voltage;
The third bridge chip power module 630, the input end of which is connected with the first output end of the third power transformation unit 300, and outputs a fourth intermediate voltage VCC 1-5V;
The fourth bridge chip power module 640 has an input terminal connected to the first output terminal of the first power conversion unit 100, an output terminal connected to the output terminal of the third bridge chip power module 630, and a reference voltage terminal for outputting a third bridge chip power supply voltage pch_mem_vtt.
Referring to fig. 1 to 5, the first bridge power module 610 may convert the first intermediate voltage vcc3_sb output from the first transforming unit 100 into the first bridge power supply voltage vcc1_1v_s5, the second and third bridge power modules 620 and 630 convert the fifth output voltage vcc1_8v into the second and fourth bridge power supply voltages vcc1_2v_pch_pll and vcc1_5v, respectively, and the fourth bridge power module 640 converts the fourth intermediate voltage vcc1_5v and the first intermediate voltage vcc3_sb into the third bridge power supply voltage pch_mem_vtt. In this way, the first bridge supply voltage VCC1_1v_s5, the second bridge supply voltage VCC1_2v_pch_pll, and the third bridge supply voltage pch_mem_vtt can be sequentially supplied.
In some embodiments of the present invention, the first bridge power module 610, the second bridge power module 620, and the third bridge power module all use TPS74401, the schematic diagram may refer to the schematic diagram of the second main power module 120, the fourth bridge power module 640 uses TPS51200, and the schematic diagram may refer to the schematic diagram of the second memory power module 520. Here, a brief description is made of the power supply port of the bridge, and the first bridge power supply voltage VCC1_1v_s5 is output to the power supply port of the bridge; the second bridge chip supply voltage VCC1_2V_PCH_PLL is output to ports such as PLL_HT_VDD, PLL_VDDA, PLL_VDDA_CORE, PLL_VDDA_DDR, PLL_VDDD_CORE, PLL_VDDD_DDR, and the like of the bridge chip; the third bridge supply voltage pch_mem_vtt is used as the DDR reference voltage for the bridge.
In addition, it should be noted that the first bridge piece power module 610, the second bridge piece power module 620, and the third bridge piece power module 630 also have an enable end, but only needs to ensure that the enabling can be achieved when the first output voltage VCC3 is input, so that the enabling signals of the first bridge piece power module 610, the second bridge piece power module 620, and the third bridge piece power module 630 can be virtually any signals before the first output voltage VCC3 is generated, and in an extreme case, the first output voltage VCC3 can also be directly used as the enabling signal, and the use requirement can be satisfied. Referring to fig. 1 and 2, in some embodiments of the present invention, the first bridge tile power module 610, the second bridge tile power module 620, and the third bridge tile power module 630 use a third intermediate voltage VCC.
In some embodiments of the invention, the loongson 3a4000 power supply system further comprises: the tenth main power module 710, an input terminal of which is connected to the first output terminal of the third power conversion unit 300, outputs a ninth output voltage VCC1_15v_c1_pll, and an output path of the ninth output voltage VCC1_15v_c1_pll and the sixth output voltage VCC1_15v_c0_pll are identical. Referring to fig. 2, the wiring of the tenth main power module 710 may also employ the same module and the same wiring as the seventh main power module 330. The ninth output voltage VCC1_15v_c1_pll may be commonly supplied with the sixth output voltage VCC1_15v_c0_pll to further secure the stability of the supply.
According to the embodiment of the second aspect of the invention, the design method of the Loongson 3A4000 power supply system comprises the following steps:
The first power transformation unit 100, the second power transformation unit 200, the third power transformation unit 300 and the fourth power transformation unit 400 are designed according to power supply voltages required by a plurality of power supply ports of the main processor;
according to the power supply sequence of the power supply ports of the main processor, the second output end of the first power transformation unit 100 is respectively connected with the enabling end of the second power transformation unit 200 and the input end of the third power transformation unit 300, and the third output end of the third power transformation unit 300 is connected with the enabling end of the fourth power transformation unit 400.
Referring to fig. 1 and 2, when designing the power supply system of the Loongson 3A4000 of the main processor, it is necessary to know which ports of the Loongson 3A4000 need to be externally supplied with power, and what voltage is needed by each port, and according to the requirements, a first power transformation unit 100, a second power transformation unit 200, a third power transformation unit 300, and a fourth power transformation unit 400 are designed, and these four power transformation units can output a first output voltage and an eighth output voltage in total, so as to meet the voltage requirements of power supply. When the Loongson 3A400 is actually powered, the sequence problem of power supply of the first output voltage and the eighth output voltage needs to be further considered, so that the situation that the Loongson 3A4000 cannot accurately operate due to error of partial port power supply sequence is avoided. The hardware circuit mainly considering the power supply sequence of the first output voltage and the eighth output voltage is designed to directly realize sequential output control, namely, the output of the previous part of circuit is used as an enabling signal of the subsequent output, so that the requirement of time sequence is ensured.
According to the design method of the Loongson 3A4000 power supply system provided by the embodiment of the invention, the first power transformation unit 100, the second power transformation unit 200, the third power transformation unit 300 and the fourth power transformation unit 400 are designed according to the power supply requirement of the Loongson 3A4000, and meanwhile, the control of the sequential output of a plurality of output voltages is realized by strictly designing the output sequence of each power transformation unit and skillfully utilizing the previous stage power transformation unit as the enabling signal of the next stage power transformation unit, so that the requirement of the Loongson 3A4000 on the power supply voltage sequence is met. Compared with other power supply systems, the power supply system designed by the Loongson 3A4000 power supply system design method provided by the embodiment of the invention has extremely high sequential control capability, is extremely simple in circuit structure, does not need to increase a power supply controller, can effectively reduce the cost of the power supply system on the premise of ensuring stable power supply, and is suitable for industrialized popularization.
In some embodiments of the present invention, the foregoing method for designing a tornado 3a4000 power supply system further includes the following steps:
The first memory power module 510, the second memory power module 520, and the third memory power module 530 are designed according to power supply voltages required by a plurality of power supply ports of the internal memory;
According to the power supply sequence of the power supply ports of the internal memory, the input end of the first memory power module 510 is connected to the second output end of the first power transformation unit 100, the input end of the second memory power module 520 is connected to the second output end of the first power transformation unit 100, the reference voltage end is connected to the second output end of the second power transformation unit 200, and the input end of the third memory power module 530 is connected to the first output end of the first power transformation unit 100, and the reference voltage end is connected to the third output end of the second power transformation unit 200.
The power supply of the internal memory also needs to ensure a certain time sequence, and the problem of the cooperation with the main processor and the bridge chip also needs to be considered, and when the design is carried out, the hardware circuit mainly considered directly realizes the sequential output control, namely the output of the previous part of circuit is used as the enabling signal of the subsequent output, thereby ensuring the requirement of the time sequence.
In some embodiments of the present invention, the foregoing method for designing a tornado 3a4000 power supply system further includes the following steps:
The first bridge piece power module 610, the second bridge piece power module 620, the third bridge piece power module 630 and the fourth bridge piece power module 640 are designed according to the power supply voltages required by the power supply ports of the bridge pieces;
according to the power supply sequence of the multiple power supply ports of the bridge, the input end of the first bridge power module 610 is connected to the first output end of the first power conversion unit 100, the input ends of the second bridge power module 620 and the third bridge power module 630 are connected to the first output end of the third power conversion unit 300, the input end of the fourth bridge power module 640 is connected to the first output end of the first power conversion unit 100, and the reference voltage end is connected to the output end of the third bridge power module 630.
The power supply of the bridge chip also needs to ensure a certain time sequence, and the problem of the cooperation with the main processor and the internal memory also needs to be considered, and when the design is carried out, the hardware circuit mainly considered directly realizes the sequential output control, namely the output of the previous part of circuit is used as the enabling signal of the subsequent output, thereby ensuring the requirement of the time sequence.
The processor system according to the embodiment of the third aspect of the invention comprises a main processor and any Loongson 3A4000 power supply system connected with the main processor.
According to the processor system provided by the embodiment of the invention, the stable operation of the Loongson 3A4000 can be effectively ensured by adding the Loongson 3A4000 power supply system on the periphery of the Loongson 3A4000 of the main processor, and the Loongson 3A4000 power supply system are integrated, so that the processor system is convenient for realizing industrialized popularization.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited to the embodiments, and those skilled in the art will appreciate that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A Loongson 3a4000 power supply system, comprising:
The first power transformation unit is provided with an input end and two output ends, and is used for converting an input power supply connected with the input end into a first intermediate voltage and a first output voltage, and correspondingly outputting the first intermediate voltage and the first output voltage by the first output end and the second output end; the first output voltage is output after the first intermediate voltage;
the second power transformation unit is provided with three output ends, an input end connected with the input power supply and an enabling end connected with the second output end of the first power transformation unit, and is used for converting the input power supply into a second output voltage, a third output voltage and a fourth output voltage under the enabling of the first output voltage and outputting the second output voltage, the third output voltage and the fourth output voltage correspondingly by the first output end, the second output end and the third output end respectively, and the third output voltage and the fourth output voltage are output after the second output voltage;
The third power transformation unit is provided with three output ends and an input end connected with the second output end of the first power transformation unit, and is used for converting the first output voltage into a fifth output voltage, a sixth output voltage and a second intermediate voltage, and the fifth output voltage, the sixth output voltage and the second intermediate voltage are respectively output correspondingly by the first output end, the second output end and the third output end;
The fourth power transformation unit is provided with two output ends, an input end connected with the input power supply and an enabling end connected with a third output end of the third power transformation unit, and is used for converting the input power supply into a seventh output voltage and an eighth output voltage under the enabling of the second intermediate voltage and outputting the seventh output voltage and the eighth output voltage correspondingly by the two output ends respectively; the first output voltage to the eighth output voltage are all used for supplying power to the main processor.
2. The Loongson 3A4000 power supply system according to claim 1, wherein the first power conversion unit includes:
The first main power supply module is provided with an input end, a first output end, a second output end, a first enabling end and a second enabling end which are used for respectively controlling the output states of the first output end and the second output end, wherein the input end and the first enabling end are connected with the input power supply, the first output end is used for outputting a third intermediate voltage, and the second output end is used for outputting a first output voltage;
And the input end of the second main power supply module is connected with the first output end of the first main power supply module, and the output end of the second main power supply module is connected with the second enabling end of the first main power supply module and is used for converting the third intermediate voltage into the first intermediate voltage and outputting the first intermediate voltage.
3. The loongson 3a4000 power supply system of claim 1, wherein the second power transformation unit includes:
The third main power supply module is provided with an input end, a first output end, a second output end, a first enabling end and a second enabling end, wherein the first enabling end and the second enabling end are used for respectively controlling the output states of the first output end and the second output end;
The fourth main power module is provided with an input end, a first output end and a first enabling end for controlling the output state of the first output end, wherein the input end of the fourth main power module is connected with the input power supply, the first enabling end is connected with the second output end of the third main power module, and the first output end is used for outputting fourth output voltage.
4. The Loongson 3A4000 power supply system according to claim 1, wherein the third power conversion unit includes:
the input end of the fifth main power supply module is connected with the second output end of the first power transformation unit, and the output end of the fifth main power supply module is used for outputting a fifth output voltage converted by the first output voltage;
The input end of the sixth main power supply module is connected with the output end of the fifth main power supply module, and the output end of the sixth main power supply module is connected with the enabling end of the fourth power transformation unit and is used for converting the fifth output voltage into a second intermediate voltage and outputting the second intermediate voltage;
And the input end of the seventh main power supply module is connected with the output end of the fifth main power supply module, and the output end is used for outputting a sixth output voltage converted by the fifth output voltage.
5. The Loongson 3A4000 power supply system according to claim 1, wherein the fourth power conversion unit includes:
The eighth main power supply module is provided with an input end, an output end and an enabling end for controlling the output state of the output end, wherein the input end of the eighth main power supply module is connected with the input power supply, the enabling end is in input connection with the third output end of the third power transformation unit, and the output end is used for outputting a seventh output voltage;
and the ninth main power supply module is provided with an input end, an output end and an enabling end for controlling the output state of the output end, wherein the input end of the ninth main power supply module is connected with the input power supply, the enabling end is connected with the third output end of the third power transformation unit in an input way, and the output end is used for outputting eighth output voltage.
6. The Loongson 3A4000 power supply system of claim 1, further comprising:
The input end of the first memory power supply module is connected with the second output end of the first power transformation unit, and the output end of the first memory power supply module is used for outputting a first memory power supply voltage;
the second memory power supply module is provided with an input end, an output end and a reference voltage end, wherein the input end of the second memory power supply module is connected with the second output end of the first power transformation unit, the reference voltage end is connected with the second output end of the second power transformation unit, and the output end is used for outputting a second memory power supply voltage;
the third memory power supply module is provided with an input end, an output end and a reference voltage end, wherein the input end of the third memory power supply module is connected with the first output end of the first power transformation unit, the reference voltage end is connected with the third output end of the second power transformation unit, and the output end is used for outputting third memory power supply voltage.
7. The Loongson 3A4000 power supply system of claim 1, further comprising:
The input end of the first bridge piece power supply module is connected with the first output end of the first power transformation unit, and the output end is used for outputting a first bridge piece power supply voltage;
The input end of the second bridge piece power supply module is connected with the first output end of the third power transformation unit, and the output unit is used for outputting a second bridge piece power supply voltage;
the input end of the third bridge piece power supply module is connected with the first output end of the third power transformation unit, and the output unit is used for outputting a fourth intermediate voltage;
And the fourth bridge piece power supply module is provided with an input end, an output end and a reference voltage end, the input end of the fourth bridge piece power supply module is connected with the first output end of the first power transformation unit, the reference voltage end is connected with the output end of the third bridge piece power supply module, and the output end is used for outputting the third bridge piece power supply voltage.
8. A design method of a Loongson 3A4000 power supply system for completing the Loongson 3A4000 power supply system according to any one of claims 1 to 7, comprising the steps of:
designing a first power transformation unit, a second power transformation unit, a third power transformation unit and a fourth power transformation unit according to power supply voltages required by a plurality of power supply ports of a main processor;
and according to the power supply sequence of the power supply ports of the main processor, connecting the second output end of the first power transformation unit with the enabling end of the second power transformation unit and the input end of the third power transformation unit respectively, and connecting the third output end of the third power transformation unit with the enabling end of the fourth power transformation unit.
9. The method for designing a loongson 3a4000 power supply system of claim 8, further comprising the steps of:
Designing a first memory power supply module, a second memory power supply module and a third memory power supply module according to power supply voltages required by a plurality of power supply ports of an internal memory;
According to the power supply sequence of the power supply ports of the internal memory, the input end of the first memory power supply module is connected with the second output end of the first power transformation unit, the input end of the second memory power supply module is connected with the second output end of the first power transformation unit, the reference voltage end is connected with the second output end of the second power transformation unit, the input end of the third memory power supply module is connected with the first output end of the first power transformation unit, and the reference voltage end is connected with the third output end of the second power transformation unit.
10. A processor system, comprising: a main processor and a loongson 3a4000 power supply system according to any one of claims 1 to 7 connected to the main processor.
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