CN113726172B - Aging high-voltage power supply - Google Patents
Aging high-voltage power supply Download PDFInfo
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- CN113726172B CN113726172B CN202110819241.9A CN202110819241A CN113726172B CN 113726172 B CN113726172 B CN 113726172B CN 202110819241 A CN202110819241 A CN 202110819241A CN 113726172 B CN113726172 B CN 113726172B
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- 230000032683 aging Effects 0.000 title claims abstract description 46
- 238000012423 maintenance Methods 0.000 claims abstract description 25
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 230000003993 interaction Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
- H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
- H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
- H02M3/325—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
- H02M3/33523—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
- H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
- H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
- H02M3/325—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Generation Of Surge Voltage And Current (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
The high-voltage generation module of the aging high-voltage power supply comprises a transformer T, a chip U2, a first relay K1, a third relay K3, a power tube Q2 and a self-locking circuit; the transformer T is used for performing voltage conversion; the power tube Q2 is a switching tube connected with the transformer T, driving pulse of the power tube Q2 is generated by the chip U2, and the width of pulse waveform output by the chip U2 is changed by controlling the voltage of a corresponding pin of the chip U2; when the high-voltage aging power supply is in a state of lighting the gyro, the waveform width of the output pulse of the chip U2 is relatively large; when the high-voltage aging power supply is in a maintenance state, the waveform width of the output pulse of the chip U2 is smaller; the self-locking circuit is switched into the high-voltage circuit through a third relay K3; the secondary side output voltage of the transformer T enters a voltage doubling circuit through a first relay K1 to generate positive-negative high voltage, and finally the transformer T is connected with external products.
Description
Technical Field
The invention relates to an aging high-voltage power supply, in particular to an aging high-voltage power supply for grounding a laser gyro on a single anode arm, and belongs to the technical field of high-voltage power supplies.
Background
The ageing work is a work which is very important in maintaining the stability of the performance of the laser gyro. The ring cavity of the top is enabled to reach a stable state through long-time lighting and maintenance, so that the performance of the top is maintained stable. Therefore, the aging high-voltage power supply plays a vital role in the aging work of the gyroscope.
The aging high-voltage power supply in the prior art adopts a common anode technology, and in the starting process, a kilovolt voltage difference is generated between a cathode and an anode, so that the normal lighting operation of the gyroscope is ensured. In the gyro maintaining stage, the anode voltage is cut off and the output is maintained only by the cathode voltage. Therefore, the high-voltage power supply in the prior art adopts two sets of transformers, one set of transformers is used for generating the high voltage of the anode, and the other set of transformers is used for generating the high voltage of the anode; in addition, along with the adjustment of the operation mode of an aging workshop and the change of the internal components of a gyro product, the traditional aging high-voltage power supply can not meet the requirements gradually.
Disclosure of Invention
The invention aims to solve the technical problems that: the high-voltage generation module comprises a transformer T, a chip U2, a first relay K1, a third relay K3, a power tube Q2 and a self-locking circuit; the transformer T is used for performing voltage conversion; the power tube Q2 is a switching tube connected with the transformer T, driving pulse of the power tube Q2 is generated by the chip U2, and the width of pulse waveform output by the chip U2 is changed by controlling the voltage of a corresponding pin of the chip U2; when the high-voltage aging power supply is in a state of lighting the gyro, the waveform width of the output pulse of the chip U2 is relatively large; when the high-voltage aging power supply is in a maintenance state, the waveform width of the output pulse of the chip U2 is smaller; the self-locking circuit is switched into the high-voltage circuit through a third relay K3; the secondary side output voltage of the transformer T enters a voltage doubling circuit through a first relay K1 to generate positive-negative high voltage, and finally the transformer T is connected with external products.
The invention aims at realizing the following technical scheme:
the high-voltage generation module of the aging high-voltage power supply comprises a transformer T, a chip U2, a first relay K1, a third relay K3, a power tube Q2 and a self-locking circuit;
the transformer T is used for performing voltage conversion;
the power tube Q2 is a switching tube connected with the transformer T, driving pulse of the power tube Q2 is generated by the chip U2, and the width of pulse waveform output by the chip U2 is changed by controlling the voltage of a corresponding pin of the chip U2; when the high-voltage aging power supply is in a state of lighting the gyro, the waveform width of the output pulse of the chip U2 is relatively large; when the high-voltage aging power supply is in a maintenance state, the waveform width of the output pulse of the chip U2 is smaller;
the self-locking circuit is switched into the high-voltage circuit through a third relay K3;
the secondary side output voltage of the transformer T enters a voltage doubling circuit through a first relay K1 to generate positive-negative high voltage, and finally the transformer T is connected with external products.
The high-voltage generation module of the aging high-voltage power supply comprises a transformer T, a chip U2, a first relay K1, a second relay K2, a third relay K3, a fourth relay K4, a power tube Q2, a self-locking circuit, a first connector J4-1, a third connector J4-3 and a fifth connector J4-5;
the width of the pulse waveform output by the chip U2 is changed through the voltage signal OUTA4, and the pulse waveform output by the chip U2 is used for driving the power tube Q2; the drain electrode of the power tube Q2 is connected with the primary side of the transformer T, and the grid electrode of the power tube Q2 is connected with the output pin of the chip U2; the source electrode of the power tube Q2 is grounded; the self-locking circuit is connected with the primary side of the transformer T through a third relay K3;
the secondary side of the transformer T is connected with the cathode voltage doubling and the grounded anode voltage doubling through a first relay K1; the cathode voltage doubling is connected with an external product through a fourth relay K4 and a third connector J4-3 in sequence; the grounded anode voltage doubling is connected with an external product through an optocoupler OP1 and a second relay K2 respectively; the first connector J4-1 is positioned between the optical coupler OP1 and an external product, and the fifth connector J4-5 is positioned between the second relay K2 and the external product;
the auxiliary side of the transformer T outputs voltage to an external control module, and the external control module outputs a voltage signal OUTA4 to control the waveform width of the output pulse of the chip U2 according to the received voltage;
the transformer T is used for performing voltage conversion; when the high-voltage aging power supply is in a state of lighting the gyro, the waveform width of the output pulse of the chip U2 is relatively large; when the high voltage aging power supply is in a maintenance state, the waveform width of the output pulse of the chip U2 is smaller.
Preferably, when the third relay K3 is closed, the self-locking circuit is powered on.
The high voltage generation method of the aging high voltage power supply adopts the high voltage generation module, and comprises the following steps:
the waveform width of the output pulse of the chip U2 is controlled by using a voltage signal OUTA 4; the chip U2 outputs pulses for driving the power tube Q2; the power tube Q2 is a switching tube connected with the transformer; when the waveform width of the pulse output by the chip U2 is larger, the aging high-voltage power supply is in a state of lighting the external gyroscope, and when the waveform width of the pulse output by the chip U2 is smaller, the aging high-voltage power supply is in a maintenance state;
the fifth connector J4-5 is connected with an external product grounding anode, and the external product grounding anode is connected with the ground; when the second relay K2 is disconnected, the grounding anode voltage doubling is disconnected with an external product grounding anode, the external product grounding anode is directly connected with the ground, and the external product is turned on by a single arm and enters a maintenance state; when the second relay K2 is closed, the external product is lightened by two arms and enters a maintenance state.
The aging high-voltage power supply comprises the high-voltage generation module, a signal acquisition module, a control module, an auxiliary power supply module and a screen display module;
the auxiliary power supply module is used for supplying power to the high-voltage generation module, the signal acquisition module and the control module;
the control module receives the voltage of the auxiliary side of the transformer T and outputs a voltage signal OUTA4 to the chip U2 so as to realize feedback control; meanwhile, the control module is also used for controlling the on-off of the first relay K1, the second relay K2 and the fourth relay K4;
the signal acquisition module is used for acquiring auxiliary side output voltage of the transformer T and two arm maintenance current signals of external products, one part of the auxiliary side output voltage and the two arm maintenance current signals are output to the screen display module for human-computer interaction, and the other part of the auxiliary side output voltage and the two arm maintenance current signals are input to the control module for controlling the output voltage of the transformer T and the on-off of the second relay K2;
the screen display module is used for data display and man-machine interaction.
Preferably, the control module is implemented using an operational amplifier.
Compared with the prior art, the invention has the following beneficial effects:
(1) The design of the invention solves the problem that the high-voltage power supply can not work normally under the condition of single anode arm grounding in the transformation process of the aging workshop of the laser gyro, can also ensure the key aging of the annular cavity of the gyro and improves the reliability of aging work.
(2) The design of the invention reduces the number of the traditional high-voltage power transformers, simultaneously maintains the more visual display of the current, and improves the safety of the aging power supply by adopting the self-locking design.
Drawings
Fig. 1 is a circuit configuration of an aged high-voltage power supply.
Fig. 2 is a schematic diagram of a high voltage generation module.
Fig. 3 is a schematic diagram of the ignition and sustain control pulses.
Fig. 4 is a schematic diagram of the voltage at the grounded anode.
Fig. 5 is a schematic diagram of a self-locking circuit of the power supply (wherein the right half of fig. 5 is not shown in fig. 2).
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
An aging high-voltage power supply, namely a novel laser gyro aging high-voltage power supply, comprises a high-voltage generation module, a signal acquisition module, a control module, an auxiliary power supply module and a screen display module, wherein the aging high-voltage power supply is shown in figure 1.
The high-voltage generation module is an actuating mechanism of the laser gyro aging power supply and comprises a transformer T, a chip U2, a first relay K1, a second relay K2, a third relay K3, a fourth relay K4, a power tube Q2 and a self-locking circuit. Wherein the transformer is one of the key parts of the high voltage module for voltage conversion. The power tube Q2 is a switching tube connected with the transformer, and corresponding driving pulse is generated by the chip U2. The width of the pulse waveform output by the chip U2 can be changed by controlling the voltage of the 1 pin of the U2. When the high-voltage aging power supply is in a state of lighting the gyro, the waveform width of the output pulse of the chip U2 is relatively large; when the high voltage aging power supply is in a maintenance state, the waveform width of the output pulse of the chip U2 is smaller. The output pulse of the chip U2 is controlled by the voltage signal of the OUTA 4. The self-locking circuit is switched into the high-voltage circuit through the third relay K3. The secondary side output voltage of the transformer T enters a voltage doubling circuit through a first relay K1 to generate positive-negative high voltage, and the positive-negative high voltage is connected with external products through J4-1, J4-3 and J4-5.
The external product comprises two anodes and a cathode, wherein the two anodes of the external product are respectively connected with J4-1 and J4-5, and the cathode of the external product is connected with J4-3. The external product has two states, namely a lighting state and a maintenance state, wherein the lighting state is the lighting state of the product, the time is short, the instant completion is carried out, and the time is not longer than 3 seconds at maximum; the maintenance state is to maintain the lighting of the product and ensure that the product is always in a normal working state. Both the single-arm lighting and the double-arm lighting are both lighted and maintained, and the single-arm lighting and the double-arm lighting are only lighted and maintained. The external product has two arms, a non-grounding one arm is formed by J4-3 and J4-1, a grounding one arm is formed by J4-3 and J4-5, and the fifth connector J4-5 is always connected with the ground. The fifth connector J4-5 is connected to the product ground anode, which is simultaneously connected to ground. When K2 is disconnected, the grounded anode voltage of the high-voltage generation module (namely the output voltage of the grounded anode voltage doubling circuit) cannot be transmitted to the grounded anode of the product, and the grounded anode of the product is directly connected with the ground. When the grounded anode voltage of the product cannot be connected with the fifth connector J4-5, the product non-grounded arm is lightened and enters a maintenance state; when the grounded anode voltage of the high voltage generating module is connected to the fifth connector J4-5, the product is turned on at both arms and enters a sustain state.
The auxiliary power supply module is used for providing +24V, +12V, +5V and-5V voltages so as to maintain the power supply of the first relay K1, the second relay K2, the third relay K3, the fourth relay K4, the operational amplifier U1, the operational amplifier U4, the optocoupler OP1 and the chip U2.
The control module is used for controlling the output voltage of the auxiliary side of the transformer T in the high-voltage generation module 1, changing the output current of the aging power supply and realizing self-locking protection. The control module receives the voltage of the auxiliary side of the transformer T, obtains a voltage signal OUTA4 after calculation by the internal operational amplifier U1 and the operational amplifier U4, and outputs the voltage signal OUTA4 to the 1 pin of the chip U2 to realize feedback control. The control module is also used for controlling the on-off of the first relay K1, the second relay K2 and the fourth relay K4.
The signal acquisition module is used for acquiring auxiliary side output voltage of the transformer T and two-arm maintenance current signals of external products, one part of the auxiliary side output voltage is output to the screen display module for human-computer interaction, and the other part of the auxiliary side output voltage is input to the control module for controlling the output voltage of the transformer T and the on-off of the second relay K2.
The screen display module is used for data display and man-machine interaction, and realizes artificial parameter adjustment.
A partial schematic diagram of the high voltage generation module (only part not including the self-locking circuit) is shown in fig. 2, in which fig. 3 shows a detailed schematic diagram of the ignition and sustain control pulses, fig. 4 shows a detailed schematic diagram of the grounded anode voltage, and fig. 5 shows a detailed schematic diagram of the self-locking circuit.
In fig. 3, the power tube Q2 is a switching tube connected to a transformer, and a corresponding driving pulse is generated by the chip U2. The width of the pulse waveform output by the chip U2 can be changed by controlling the voltage of the 1 pin of the chip U2. When the high-voltage aging power supply is in a state of lighting the gyro, the waveform width of the output pulse of the chip U2 is relatively large; when the high voltage aging power supply is in a maintenance state, the waveform width of the output pulse of the chip U2 is smaller. The output pulse of the chip U2 is controlled by the voltage signal of the OUTA 4. Therefore, the output voltage of the transformer can be changed by changing the pulse waveform of the driving power tube Q2, so that the lighting and maintaining dual-state work of a single transformer is realized, the problem that the switching of the lighting and maintaining states is realized by switching two transformers in the prior art is solved, and the purposes of small size and light weight of a circuit board are realized.
In fig. 4, the voltage of the grounded anode (J4-5) is a voltage doubling circuit, and then a second relay K2 is added at the end of the voltage doubling circuit. When the single arm is selected to be lightened, the second relay K2 works, the grounding arm is communicated with the ground, the voltage between the anode and the grounding arm is insufficient to maintain the continuous working of the grounding arm of the gyroscope, and the gyroscope realizes the maintenance of the working state of the single arm.
In FIG. 5, J2-3 and J2-4 are connected by a self-resetting switch, and after the self-resetting switch is pressed, J2-3 and J2-4 are conducted, and the third relay K3 operates. J3-1 and 24V are shorted by jumper blocks. The power supply self-locking circuit can prevent the abnormal closing of the power supply caused by misoperation of the switch button, thereby affecting the products participating in aging and realizing the essential protection of the power supply performance.
What is not described in detail in the present specification is a well known technology to those skilled in the art.
Although the present invention has been described in terms of the preferred embodiments, it is not intended to be limited to the embodiments, and any person skilled in the art can make any possible variations and modifications to the technical solution of the present invention by using the methods and technical matters disclosed above without departing from the spirit and scope of the present invention, so any simple modifications, equivalent variations and modifications to the embodiments described above according to the technical matters of the present invention are within the scope of the technical matters of the present invention.
Claims (5)
1. The high-voltage generation module of the aging high-voltage power supply is characterized by comprising a transformer T, a chip U2, a first relay K1, a second relay K2, a third relay K3, a fourth relay K4, a power tube Q2, a self-locking circuit, a first connector J4-1, a third connector J4-3 and a fifth connector J4-5;
the width of the pulse waveform output by the chip U2 is changed through the voltage signal OUTA4, and the pulse waveform output by the chip U2 is used for driving the power tube Q2; the drain electrode of the power tube Q2 is connected with the primary side of the transformer T, and the grid electrode of the power tube Q2 is connected with the output pin of the chip U2; the source electrode of the power tube Q2 is grounded; the self-locking circuit is connected with the primary side of the transformer T through a third relay K3;
the secondary side of the transformer T is connected with the cathode voltage doubling and the grounded anode voltage doubling through a first relay K1; the cathode voltage doubling is connected with an external product through a fourth relay K4 and a third connector J4-3 in sequence; the grounded anode voltage doubling is connected with an external product through an optocoupler OP1 and a second relay K2 respectively; the first connector J4-1 is positioned between the optical coupler OP1 and an external product, and the fifth connector J4-5 is positioned between the second relay K2 and the external product; two anodes of an external product are respectively connected with a first connector J4-1 and a fifth connector J4-5, and the fifth connector J4-5 is always in a connection state with the ground;
the auxiliary side of the transformer T outputs voltage to an external control module, and the external control module outputs a voltage signal OUTA4 to control the waveform width of the output pulse of the chip U2 according to the received voltage;
the transformer T is used for performing voltage conversion; when the high-voltage aging power supply is in a state of lighting the gyro, the waveform width of the output pulse of the chip U2 is relatively large; when the high voltage aging power supply is in a maintenance state, the waveform width of the output pulse of the chip U2 is smaller.
2. The high voltage generation module of the aged high voltage power supply according to claim 1, wherein the self-locking circuit is powered up when the third relay K3 is closed.
3. A high voltage generation method of an aging high voltage power supply is characterized in that: the high voltage generation module of claim 1, comprising the steps of:
the waveform width of the output pulse of the chip U2 is controlled by using a voltage signal OUTA 4; the chip U2 outputs pulses for driving the power tube Q2; the power tube Q2 is a switching tube connected with the transformer; when the waveform width of the pulse output by the chip U2 is larger, the aging high-voltage power supply is in a state of lighting the external gyroscope, and when the waveform width of the pulse output by the chip U2 is smaller, the aging high-voltage power supply is in a maintenance state;
the fifth connector J4-5 is connected with an external product grounding anode, and the external product grounding anode is connected with the ground; when the second relay K2 is disconnected, the grounding anode voltage doubling is disconnected with an external product grounding anode, the external product grounding anode is directly connected with the ground, and the external product is turned on by a single arm and enters a maintenance state; when the second relay K2 is closed, the external product is lightened by two arms and enters a maintenance state.
4. An aging high-voltage power supply is characterized by comprising the high-voltage generation module as claimed in claim 1 or 2, and further comprising a signal acquisition module, a control module, an auxiliary power supply module and a screen display module;
the auxiliary power supply module is used for supplying power to the high-voltage generation module, the signal acquisition module and the control module;
the control module receives the voltage of the auxiliary side of the transformer T and outputs a voltage signal OUTA4 to the chip U2 so as to realize feedback control; meanwhile, the control module is also used for controlling the on-off of the first relay K1, the second relay K2 and the fourth relay K4;
the signal acquisition module is used for acquiring auxiliary side output voltage of the transformer T and two arm maintenance current signals of external products, one part of the auxiliary side output voltage and the two arm maintenance current signals are output to the screen display module for human-computer interaction, and the other part of the auxiliary side output voltage and the two arm maintenance current signals are input to the control module for controlling the output voltage of the transformer T and the on-off of the second relay K2;
the screen display module is used for data display and man-machine interaction.
5. The burn-in high voltage power supply of claim 4 wherein the control module is implemented using an operational amplifier.
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| CN202110819241.9A CN113726172B (en) | 2021-07-20 | 2021-07-20 | Aging high-voltage power supply |
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| CN202110819241.9A CN113726172B (en) | 2021-07-20 | 2021-07-20 | Aging high-voltage power supply |
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| CN119132885A (en) * | 2024-11-08 | 2024-12-13 | 赛诺威盛科技(北京)股份有限公司 | A self-locking and unlocking circuit based on pulse control and circuit control method |
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