CN106549483A - Double-output power supplier and its backup method - Google Patents
Double-output power supplier and its backup method Download PDFInfo
- Publication number
- CN106549483A CN106549483A CN201510607160.7A CN201510607160A CN106549483A CN 106549483 A CN106549483 A CN 106549483A CN 201510607160 A CN201510607160 A CN 201510607160A CN 106549483 A CN106549483 A CN 106549483A
- Authority
- CN
- China
- Prior art keywords
- voltage
- circuit
- output
- alternating current
- factor correction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 13
- 239000003990 capacitor Substances 0.000 claims description 11
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Rectifiers (AREA)
Abstract
A kind of double-output power supplier is included：First, second circuit of power factor correction, output circuit and DC-DC converter.First circuit of power factor correction framework is to provide first object voltage, and the second circuit of power factor correction framework is to provide the second target voltage.Second target voltage is less than first object voltage.When the output regular supply of the first circuit of power factor correction, output of the output circuit based on the first circuit of power factor correction provides output voltage.When the output of the first circuit of power factor correction is less than the output of the second circuit of power factor correction because of the first alternating current power supply exception, output of the output circuit based on the second circuit of power factor correction provides output voltage to DC-DC converter, produces load voltage for which.So can reach diminution volume and there is redundant function.
Description
Technical field
Present invention system provides a kind of power supply unit, especially means a kind of double-output power supplier and its backup method.
Background technology
There are many electronic installations, arithmetic system etc. provide stable electric power using power supply unit now, electronic installation or arithmetic system etc. can be operated for a long time, is avoided that because civil power source is unstable and causes electronic installation or arithmetic system etc. run or damage.
The single input power of power supply unit polyphyly in the streets, which generally connects to civil power, to change the alternating current power supply of civil power into galvanic current source, is run with electronic devices.In addition, in the streets also there is two-output impulse generator power supply unit, its input system is input into the alternating current of identical voltage respectively or is input into an alternating current and a unidirectional current respectively, also therefore there is double-output power supplier lose-lose to go out of the port, and each outfan then corresponds respectively to the power supply of input, to export corresponding output power respectively.For example when this two-output impulse generator power supply unit is input into identical alternating current power supply, then each outfan distinguishes identical output power；If input is respectively an alternating current and a unidirectional current, an outfan then corresponds to exchange one output power of electricity output, and another outfan then corresponds to the other output power of direct current electricity output.
Therefore, two-output impulse generator power supply unit needs to carry out each input power rectification respectively, after transformation, just respectively with each outfan output power to electronic installation, i.e. two-output impulse generator power supply unit system is respectively by input correspondence to an outfan, also the bulky of two-output impulse generator power supply unit is thus resulted in, is mutually run counter to miniaturization now or the development in science and technology of microminiaturization.In view of this, it is necessary to propose an improving countermeasure to solve foregoing problems.
The content of the invention
Therefore, the present invention provides a kind of double-output power supplier, and which includes：First circuit of power factor correction, the second circuit of power factor correction and output circuit.Output circuit is connected with the first circuit of power factor correction and the second circuit of power factor correction respectively.First circuit of power factor correction receives the first alternating current power supply, and produces the first DC voltage according to the first alternating current power supply.First circuit of power factor correction framework is to provide first object voltage, and when the first alternating current power supply is normal, the first DC voltage is first object voltage.Second circuit of power factor correction receives the second alternating current power supply for being different from the first alternating current power supply, and produces the second DC voltage according to the second alternating current power supply.Second circuit of power factor correction framework is to provide the second target voltage less than first object voltage, and when the second alternating current power supply is normal, the second DC voltage is the second target voltage.Output circuit provides output voltage according to the first DC voltage or the second DC voltage.Wherein, when the first DC voltage is normal, output circuit provides output voltage based on the first DC voltage.When the first DC voltage is less than the second DC voltage because of the first alternating current power supply exception, output circuit provides output voltage based on the second DC voltage.
The present invention also provides a kind of backup method of double-output power supplier, and which includes：First DC voltage is exported according to the first alternating current power supply using the first circuit of power factor correction second DC voltage is exported to output circuit and by output circuit according to first DC voltage or second direct voltage output output voltage according to the second alternating current power supply to output circuit, using the second circuit of power factor correction.First circuit of power factor correction framework is to provide first object voltage, and when the first alternating current power supply regular supply, the first DC voltage is first object voltage.Second circuit of power factor correction framework is to provide the second target voltage less than first object voltage, and when the second alternating current power supply regular supply, the second DC voltage is the second target voltage.Wherein, when the first DC voltage regular supply, output circuit provides output voltage based on the first DC voltage, and when the first DC voltage is less than the second DC voltage because of the first alternating current power supply exception, output circuit provides output voltage based on the second DC voltage.
Compared to prior art, the double-output power supplier and its backup method of the present invention is able to when the first alternating current power supply is normal, output voltage is provided with the output of the first circuit of power factor correction, and when the first alternating current power supply has abnormal, then change and output voltage is provided with the output of the second circuit of power factor correction, so as to reaching the reduction of hardware cost and the lifting of efficiency in the case of dual input power supply is supported.
【Description of the drawings】
Fig. 1 is the configuration diagram of an embodiment of double-output power supplier of the present invention.
Fig. 2 is the flow chart of an embodiment of the backup method of double-output power supplier of the present invention.
Fig. 3 is the detailed architecture figure of an embodiment of the first circuit of power factor correction in Fig. 1 and Fig. 2.
Fig. 4 is the detailed architecture figure of another embodiment of the first circuit of power factor correction in Fig. 1 and Fig. 2.
Fig. 5 is the configuration diagram of the another embodiment of the first circuit of power factor correction in Fig. 1 and Fig. 2.
Fig. 6 is the detailed architecture figure of an embodiment of the second circuit of power factor correction in Fig. 1 and Fig. 2.
Fig. 7 is the detailed architecture figure of another embodiment of the second circuit of power factor correction in Fig. 1 and Fig. 2.
Fig. 8 is the configuration diagram of the another embodiment of the second circuit of power factor correction in Fig. 1 and Fig. 2.
Fig. 9 is the detailed architecture figure of an embodiment of the output circuit in Fig. 1 and Fig. 2.
Figure 10 is the configuration diagram of another embodiment of double-output power supplier of the present invention.
【Specific embodiment】
Fig. 1 is the configuration diagram of an embodiment of double-output power supplier of the present invention.Fig. 2 is the flow chart of an embodiment of the backup method of double-output power supplier of the present invention.Fig. 1 and Fig. 2 is referred to, double-output power supplier includes the first circuit of power factor correction 10, the second circuit of power factor correction 20, output circuit 30 and DC-DC converter 40.The input of output circuit 30 is connected to the first PFC（power
factor correction, PFC）The outfan of the outfan of circuit 10 and the second circuit of power factor correction 20.The outfan of output circuit 30 is connected to the input of DC-DC converter 40, and the outfan of DC-DC converter 40 is connected to late-class circuit（Such as, load circuit）.The input of the first circuit of power factor correction 10 is connected to the first power source supply end, and the input of the second circuit of power factor correction 20 is connected to second source feed end.First power source supply end provides the first alternating current power supply AC1, and second source feed end provides the second alternating current power supply AC2.
First circuit of power factor correction 10 is received from the first outside alternating current power supply AC1, and the first circuit of power factor correction 10 produces the first DC voltage DC1 according to the first alternating current power supply AC1（Step S01）.Wherein, 10 system structure of the first circuit of power factor correction is offer（Boost or Buck）First object voltage.In other words, when the first alternating current power supply AC1 regular supply, the first DC voltage DC1 that the first circuit of power factor correction 10 is exported can stablize in first object voltage.
Second circuit of power factor correction 20 is received from the second outside alternating current power supply AC2, and the second circuit of power factor correction 20 produces the second DC voltage DC2 according to the second alternating current power supply AC2（Step S02）.Wherein, the first alternating current power supply AC1 is different from the second alternating current power supply AC2.Second circuit of power factor correction, 20 system structure is offer（Boost or Buck）Second target voltage, and the second target voltage is less than first object voltage（For example：First object voltage is 400V, and the second target voltage is 390V, but the invention is not restricted to this）.In other words, when the second alternating current power supply AC2 regular supply, the second DC voltage DC2 that the second circuit of power factor correction 20 is exported can stablize in the second target voltage.
Output circuit 30 exports an output voltage according to the first DC voltage DC1 or the second DC voltage DC2（Step S03）.
DC-DC converter 40 receives output voltage, and produces load voltage according to output voltage（Step S04）.
When the first alternating current power supply AC1 regular supply, first circuit of power factor correction 10 exports stable the first DC voltage DC1 in first object voltage to output circuit 30 based on the first alternating current power supply AC1, and now the first DC voltage DC1 can be more than the second DC voltage DC2（Step S031）.When the first DC voltage DC1 regular supplies（That is the first DC voltage DC1 is stable in first object voltage）When, output circuit 30 exports output voltage based on the first DC voltage DC1（Step S032）.
When the first alternating current power supply AC1 is abnormal, the first DC voltage DC1 of the output of the first circuit of power factor correction 10 can be less than first object voltage, and now the first DC voltage DC1 can be less than the second DC voltage DC2（Step S031）.When the first DC voltage DC1 is less than the second DC voltage DC2 because of the first alternating current power supply AC1 exception, output circuit 30 exports output voltage based on the second DC voltage DC2（Step S033）.In other words, double-output power supplier can stably provide output voltage using the second alternating current power supply AC2 as spare power when alternating current power supply AC1 is abnormal.
Fig. 3 is the detailed architecture figure of an embodiment of the circuit of power factor correction in the 1st and 2 figures.In certain embodiments, Fig. 3 is referred to, the first circuit of power factor correction 10 adjusts circuit 12 and the first control unit 13 comprising the first rectification circuit 11, first voltage.The input of first voltage regulation circuit 12 is connected to the outfan of the first rectification circuit 11, first voltage regulation circuit 12 and is connected to output circuit 30, and the control end of first voltage regulation circuit 12 is connected to the first control unit 13.
First rectification circuit 11 receives the first alternating current power supply AC1, and the first rectification circuit 11 exports the first commutating voltage according to the first alternating current power supply AC1.In other words, 11 pairs of the first alternating current power supplys AC1 of the first rectification circuit carry out rectification（Alternating current is converted to into unidirectional current）, to produce the first commutating voltage.
First control unit 13 produces the first power signal of correspondence first object voltage.In other words, first control unit 13 controls first voltage with the first power signal and adjusts the first DC voltage DC1 that the output of circuit 12 is coincident with first object voltage, i.e., the size system of first object voltage can correspond to the setting change of the first power signal, and then change the size of the first DC voltage DC1.
First voltage is adjusted circuit 12 and the first DC voltage DC1 being consistent with first object voltage is provided under the control of the first power signal.First voltage regulation circuit 12 receives the first commutating voltage from the first rectification circuit 11, and the first commutating voltage is adjusted to the first DC voltage DC1 under the control of the first power signal.That is, first voltage adjusts circuit 12 carries out Voltage Cortrol under the control of the first power signal, to produce the first DC voltage DC1 with first object voltage.
Fig. 4 is the detailed architecture figure of another embodiment of the first circuit of power factor correction 10 in the 1st and 2 figures.In some embodiments, Fig. 4 is referred to, except the first rectification circuit 11, first voltage adjusts circuit 12 and the first control unit 13, the first circuit of power factor correction 10 also includes the first feedback circuit 14.First feedback circuit 14 is connected between the outfan of first voltage adjustment circuit 12 and the first control unit 13.First feedback circuit 14 produces the first feedback signal according to the first DC voltage DC1.First control unit 13 receives the first feedback signal and the first power signal of correspondence first object voltage is produced according to the first feedback signal.First voltage adjustment circuit 12 responds the size that the first power signal adjusts the first DC voltage DC1, to export the first DC voltage DC1 with stable voltage.
In some embodiments, under principle of second target voltage less than first object voltage, the first circuit of power factor correction 10 can have adjustable first object voltage.
Fig. 5 is the configuration diagram of the another embodiment of the first circuit of power factor correction 10 in the 1st and 2 figures.In some embodiments, Fig. 5 is referred to, except the first rectification circuit 11, first voltage adjusts circuit 12 and the first control unit 13, the first circuit of power factor correction 10 is also comprising multiple first feedback circuits 141,142,143 and select unit 15.Select unit 15 is connected to the outfan that first voltage adjusts circuit 12, and each first feedback circuit 141,142,143 is connected between the first control unit 13 and select unit 15.First feedback circuit 141,142,143 corresponds to the first object voltage of difference magnitude of voltage respectively.
Select unit 15 includes multiple selecting switch 151,152,153.Selecting switch 151 be connected to first voltage adjust circuit 12 outfan and the first feedback circuit 141 between, selecting switch 152 be connected to first voltage adjust circuit 12 outfan and the first feedback circuit 142 between, and selecting switch 153 be connected to first voltage adjust circuit 12 outfan and the first feedback circuit 143 between.Selecting switch 151,152,153 is controlled by selection signal and turns on or be not turned on.
For example, the first object voltage of 141 corresponding voltage value VA of the first feedback circuit, the first object voltage of 142 corresponding voltage value VB of the first feedback circuit, and the first feedback circuit 143 distinguish corresponding voltage value VC first object voltage.Wherein, magnitude of voltage VA, magnitude of voltage VB and magnitude of voltage VC are different value（For example：Magnitude of voltage VA, magnitude of voltage VB and magnitude of voltage VC are respectively 400V, 395V and 390V, but the invention is not restricted to this）.Under the control of selection signal, the conducting of one of selecting switch 151,152,153, and the rest is then to be not turned on.
When the first object voltage of signal behavior magnitude of voltage VB is selected, selecting switch 152 is turned in response to selection signal, and selecting switch 151 then responds selection signal with selecting switch 153 and forms open circuit, the first feedback circuit 142 is conducted to into the outfan that first voltage adjusts circuit 12 thereby.Now, first feedback circuit 142 of conducting produces the first feedback signal according to the first DC voltage DC1, and the first feedback signal for producing is sent to into the first control unit 13, to cause the first control unit 13 that the first power signal of corresponding voltage value VB is produced according to the first feedback signal, and this first power signal can allow first voltage regulation circuit 12 that first commutating voltage is adjusted to the first DC voltage DC1（That is, by the first DC voltage DC1 of output stable in magnitude of voltage VB）, and the first DC voltage DC1 is exported to output circuit 30.Thereby, the first circuit of power factor correction 10 can be allowed to provide stable the first DC voltage DC1 in different magnitudes of voltage, and then is able to select required voltage size to use depending on actual demand.
In this, in the same time, only a selecting switch 151,152 or 153 is turned on select unit 15, and only the present invention is not limited to this, in other embodiment, the integrated mode that select unit 15 can be turned on according to selecting switch 151,152,153（Such as, selecting switch 151,152 is turned on, and selecting switch 153 is not turned on；Or, selecting switch 151,153 is turned on, selecting switch 152 is not turned on）And different first feedback signals are provided and allow the first control unit 13 to produce the first power signal of correspondence difference first object voltage.
Fig. 6 is the detailed architecture figure of an embodiment of the second circuit of power factor correction 20 in the 1st and 2 figures.In some embodiments, Fig. 6 is referred to, the second circuit of power factor correction 20 adjusts circuit 22 and the second control unit 23 comprising the second rectification circuit 21, second voltage.The input of second voltage regulation circuit 22 is connected to the outfan of the second rectification circuit 21, second voltage regulation circuit 22 and is connected to output circuit 30, and the control end of second voltage regulation circuit 22 is connected to the second control unit 23.
Second rectification circuit 21 receives the second alternating current power supply AC2, and the second rectification circuit 21 exports the second commutating voltage according to the second alternating current power supply AC2.In other words, the second alternating current power supply AC2 carries out rectification to the second alternating current power supply AC2（Alternating current is converted to into unidirectional current）To produce the second commutating voltage.
Second control unit 23 produces the second power signal of the second target voltage of correspondence.In other words, second control unit 13 controls second voltage with the second power signal and adjusts the second DC voltage DC2 that the output of circuit 22 is coincident with the second target voltage, i.e., the size system of the second target voltage can correspond to the setting change of the second power signal, and then change the size of the second DC voltage DC2.
Second voltage is adjusted circuit 22 and the second DC voltage DC2 being consistent with the second target voltage is provided under the control of the second power signal.Second voltage regulation circuit 22 receives the second commutating voltage from the second rectification circuit 21, and the second commutating voltage is adjusted to the second DC voltage DC2 under the control of the second power signal.That is, second voltage adjusts circuit 22 carries out Voltage Cortrol under the control of the second power signal, to produce the second DC voltage DC2 with the second target voltage.
Fig. 7 is the detailed architecture figure of another embodiment of the second circuit of power factor correction 20 in the 1st and 2 figures.Fig. 7 is referred to, in some embodiments, except the second rectification circuit 21, second voltage adjusts circuit 22 and the second control unit 23, the second circuit of power factor correction 20 also includes the second feedback circuit 24.Second feedback circuit 24 is connected to the second feedback circuit 24 between the outfan of second voltage adjustment circuit 22 and the second control unit 23 and produces the second feedback signal according to the second DC voltage DC2.Second control unit 23 receives the second feedback signal and the second power signal of the second target voltage of correspondence is produced according to the second feedback signal.Second voltage adjustment circuit 22 responds the size that the second power signal adjusts the second DC voltage DC2, to export the second DC voltage DC2 with stable voltage.
In some embodiments, under principle of second target voltage less than first object voltage, the second circuit of power factor correction 20 can have adjustable second target voltage.
Fig. 8 is the configuration diagram of the another embodiment of the second circuit of power factor correction 20 in the 1st and 2 figures.In some embodiments, Fig. 8 is referred to, except the second rectification circuit 21, second voltage adjusts circuit 22 and the second control unit 23, the second circuit of power factor correction 20 is also comprising multiple second feedback circuits 241,242,243 and select unit 25.Select unit 25 is connected to the outfan that second voltage adjusts circuit 22, and each second feedback circuit 241,242,243 is connected between the second control unit 23 and select unit 25.Second feedback circuit 241,242,243 corresponds to the second target voltage of difference magnitude of voltage respectively.
Select unit 25 includes multiple selecting switch 251,252,253.Selecting switch 251 be connected to second voltage adjust circuit 22 outfan and the second feedback circuit 241 between, selecting switch 252 be connected to second voltage adjust circuit 22 outfan and the second feedback circuit 242 between, and selecting switch 253 be connected to second voltage adjust circuit 22 outfan and the second feedback circuit 243 between.Selecting switch 251,252,253 is controlled by selection signal and turns on or be not turned on.
For example, the first object voltage of 243 corresponding voltage value VD of the second feedback circuit, the first object voltage of 243 corresponding voltage value VE of the second feedback circuit, and the second feedback circuit 243 distinguish corresponding voltage value VF first object voltage.Wherein, magnitude of voltage VD, magnitude of voltage VE and magnitude of voltage VF are different value（For example：Magnitude of voltage VD, magnitude of voltage VE and magnitude of voltage VF are respectively 395V, 390V and 385V, but the invention is not restricted to this）.Under the control of selection signal, the conducting of one of selecting switch 251,252,253, and the rest is then to be not turned on.
When second target voltage of signal behavior magnitude of voltage VE is selected, selecting switch 252 can be turned in response to selection signal, and selecting switch 251 then responds selection signal with selecting switch 253 and forms open circuit, the second feedback circuit 242 is conducted to into the outfan that second voltage adjusts circuit 22 thereby.Now, second feedback circuit 242 of conducting produces the second feedback signal according to the first DC voltage DC1, and the second feedback signal for producing is sent to into the second control unit 23, to cause the second control unit 23 that the second power signal of corresponding voltage value VE is produced according to the second feedback signal, and this second power signal can allow second voltage regulation circuit 22 that second commutating voltage is adjusted to the second DC voltage DC2（That is, by the second DC voltage DC2 of output stable in magnitude of voltage VE）, and the second DC voltage DC2 is exported to output circuit 30.Thereby, the second circuit of power factor correction 20 can be allowed to provide stable the second DC voltage DC2 in different magnitudes of voltage, and then is able to select required voltage size to use depending on actual demand.
In this, in the same time, only a selecting switch 251,252 or 253 is turned on select unit 25, and only the present invention is not limited to this, in other embodiment, the integrated mode that select unit 25 can be turned on according to selecting switch 251,252,253（Such as, selecting switch 251,252 is turned on, and selecting switch 253 is not turned on；Or, selecting switch 251,253 is turned on, selecting switch 252 is not turned on）And different second feedback signals are provided and allow the second control unit 23 to produce the second power signal of different second target voltages of correspondence.
Fig. 9 is the detailed architecture figure of an embodiment of the output circuit 30 in the 1st and 2 figures.In some embodiments, Fig. 9 is referred to, output circuit 30 includes the first diode 31, the second diode 32 and storage capacitor 33.First diode 31 is connected between the first circuit of power factor correction 10 and storage capacitor 33, and the second diode 32 is connected between the second circuit of power factor correction 20 and storage capacitor 33.One end of storage capacitor 33 is connected with the outfan of output circuit 30, and the other end of storage capacitor 33 is connected with earth terminal.
First diode 31 receives the first DC voltage DC1, and the physical characteristics for turning on or being not turned on according to the first diode 31, the i.e. input of the first diode 31 are just turned on more than or equal to during threshold voltage with the voltage difference of outfan, otherwise is then not turned on.Therefore when the first DC voltage DC1 and the outfan of the first diode 31（That is the second DC voltage DC2）Voltage difference be more than or equal to threshold voltage when, then the first diode 31 just turns on to export the first DC voltage DC1.I.e. equivalent to judging the first DC voltage DC1 whether less than the second DC voltage DC2（Step S031 shown in Fig. 2）, when being judged as NO, then the first diode 31 is just turned on and allows the first DC voltage DC1 to export as output voltage（Step S032）.On the contrary, when the first DC voltage DC1 has abnormal, when causing the voltage difference of the outfan of the first DC voltage DC1 and the first diode 31 to be less than threshold voltage, causing the first diode 31 to be not turned on.
Second diode 32 is similar to the first diode 31, also with threshold voltage, when first DC voltage DC1s of the second DC voltage DC2 more than or equal to the outfan of the second diode 32（Step S033, i.e., when the first DC voltage DC1 is less than the second DC voltage DC2）, the second diode 32 just turns on, and allows the second DC voltage DC2 to export as output voltage.Wherein, when the first diode 31 is turned on, its output voltage can be more than the second DC voltage DC2 so that the input of the second diode 32 can be less than threshold voltage with the difference of outfan, cause the second diode 32 to be not turned on.
Storage capacitor 33 receives the first DC voltage DC1 or the second DC voltage DC2, and provides output voltage according to this to late-class circuit.
In some embodiments, storage capacitor 33 can be that Single Capacitance is constituted, but not so limited system of the invention, in other embodiments, storage capacitor 33 can also multiple electric capacity connection in series-parallel or combine with multiple passive devices constituted.
In certain embodiments, the first circuit of power factor correction 10 and the second circuit of power factor correction 20 can open up TRI for same circuits, for example：But not limited to this, the two is respectively provided with single feedback circuit, or the two is respectively provided with multiple feedback circuits.In certain embodiments, the first circuit of power factor correction 10 can open up TRI for different circuits from the second circuit of power factor correction 20, for example：But not limited to this, the first circuit of power factor correction 10 have multiple feedback circuits, and the second circuit of power factor correction 20 has single feedback circuit.
In certain embodiments, the first control unit 13 can be a pfc controller.Second control unit 23 can be a pfc controller.
In certain embodiments, the first power signal can be PWM（Pulse width modulation）Signal.Second power signal can also be pwm signal.
In certain embodiments, the first alternating current power supply AC1 can be the first civil power, and the second alternating current power supply AC2 can be the second civil power.In certain embodiments, the first civil power and the second civil power can be respectively 110V AC and 220V
AC, but the invention is not restricted to this.
In certain embodiments, late-class circuit can be a load circuit.In certain embodiments, late-class circuit may include DC-DC converter and load circuit.
Figure 10 is the configuration diagram of another embodiment of double-output power supplier of the present invention.Figure 10 is referred to, the input of load circuit 50 is connected to the outfan of DC-DC converter 40, to receive load voltage of the direct current to value stream transformer 40, so that load circuit 50 runs.
Wherein, although being to first carry out after step S01 execution step S02 again in the embodiment in the present invention, not so limited system of the invention, in some embodiments, can also first carry out after step S02 execution step S01 again, or the execution synchronous with step S02 of step S01.
To sum up, double-output power supplier of the invention and its backup method are able to when the output of the first circuit of power factor correction 10 is normal, output voltage is provided with the output of the first circuit of power factor correction 10, and when the output abnormality of the first circuit of power factor correction 10, then change and provide output voltage with the output of the second circuit of power factor correction 20.Thereby continual and steady output voltage can be provided in the case of dual input power supply is supported, and the volume of power supply unit, the reduction of hardware cost and the lifting of efficiency can be reduced.
The specific embodiment and embodiment of the present invention are elaborated above in conjunction with accompanying drawing, but the present invention is not limited to the above-described embodiment and examples, in the ken that those skilled in the art possess, can also make a variety of changes without departing from the inventive concept of the premise.
Claims (13)
1. a kind of double-output power supplier, it is characterised in that include：
One first circuit of power factor correction, receive one first alternating current power supply, one first DC voltage is produced according to first alternating current power supply, wherein the first circuit of power factor correction framework is one first object voltage of offer, and when the first alternating current power supply regular supply, first DC voltage is the first object voltage；
One second circuit of power factor correction, receive one second alternating current power supply, one second DC voltage is produced according to second alternating current power supply, wherein first alternating current power supply is different from second alternating current power supply, the second circuit of power factor correction framework is to provide one second target voltage less than the first object voltage, and when the second alternating current power supply regular supply, second DC voltage is second target voltage；
One output circuit, connect first circuit of power factor correction and second circuit of power factor correction, according to first DC voltage or one output voltage of the second direct voltage output, wherein when the first DC voltage regular supply, the output circuit is based on first direct voltage output output voltage, and when first DC voltage because first alternating current power supply is abnormal be less than second DC voltage when, the output circuit is based on second direct voltage output output voltage；And
One DC-DC converter, connects the output circuit, receives the output voltage and produces a load voltage according to the output voltage.
2. double-output power supplier according to claim 1, it is characterised in that first circuit of power factor correction is included：
One first rectification circuit, receives first alternating current power supply, exports one first commutating voltage according to first alternating current power supply；
One first voltage adjustment circuit, connects between first rectification circuit and the output circuit, and first commutating voltage is adjusted to first DC voltage according to one first power signal；And
One first control unit, connects the first voltage adjustment circuit, produce to should first object voltage first power signal.
3. double-output power supplier according to claim 2, it is characterised in that first circuit of power factor correction is further included：
One first feedback circuit, it is connected between the outfan of the first voltage adjustment circuit and first control unit, give first control unit according to one first feedback signal of the first direct voltage output, wherein first control unit according to first feedback signal produce to should first object voltage first power signal.
4. double-output power supplier according to claim 1, it is characterised in that first circuit of power factor correction is included：
One first rectification circuit, receives one first alternating current power supply, exports one first commutating voltage according to first alternating current power supply；
One first voltage adjustment circuit, connects between first rectification circuit and the output circuit, and first commutating voltage is adjusted to first DC voltage according to one first power signal；
One first control unit, connects the first voltage adjustment circuit, according to one first feedback signal produce to should first object voltage first power signal；
One select unit, connects the outfan of the first voltage adjustment circuit；And
Some first feedback circuits, it is connected between the select unit and first control unit, one of some first feedback circuits are selected to be conducted to the outfan of the first voltage adjustment circuit according to a selection signal to first control unit, the wherein select unit according to first feedback signal of the first object voltage of the first direct voltage output correspondence different value respectively.
5. double-output power supplier according to claim 1, it is characterised in that second circuit of power factor correction is included：
One second rectification circuit, receives one second alternating current power supply, exports one second commutating voltage according to second alternating current power supply；
One second voltage adjustment circuit, connects between second rectification circuit and the output circuit, and second commutating voltage is adjusted to second DC voltage according to one second power signal；And
One second control unit, connects the second voltage adjustment circuit, produce to should the second target voltage second power signal.
6. double-output power supplier according to claim 5, it is characterised in that second circuit of power factor correction is included：
One second feedback circuit, it is connected between the outfan of the second voltage adjustment circuit and second control unit, give second control unit according to one second feedback signal of the second direct voltage output, wherein second control unit according to second feedback signal produce to should the second target voltage second power signal.
7. double-output power supplier according to claim 1, it is characterised in that second circuit of power factor correction is included：
One second rectification circuit, receives one second alternating current power supply, exports one second commutating voltage according to second alternating current power supply；
One second voltage adjustment circuit, connects between second rectification circuit and the output circuit, and second commutating voltage is adjusted to second DC voltage according to one second power signal；
One second control unit, connects the second voltage adjustment circuit, according to one second feedback signal produce to should the second target voltage second power signal；
One select unit, connects the outfan of the second voltage adjustment circuit；And
Some second feedback circuits, it is connected between the select unit and second control unit, one of some second feedback circuits are selected to be conducted to the outfan of the second voltage adjustment circuit according to a selection signal to second control unit, the wherein select unit according to second feedback signal of second target voltage of the second direct voltage output correspondence different value respectively.
8. double-output power supplier according to claim 1, it is characterised in that the output circuit is included：
One storage capacitor, one end are connected with the outfan of the output circuit, and the other end is coupled to an earth terminal；
One first diode, is connected between first circuit of power factor correction and the storage capacitor；And
One second diode, is connected between second circuit of power factor correction and the storage capacitor.
9. a kind of backup method of double-output power supplier, it is characterised in that include：
One first DC voltage is exported to an output circuit according to one first alternating current power supply using one first circuit of power factor correction, wherein the first circuit of power factor correction framework is one first object voltage of offer, and when the first alternating current power supply regular supply, first DC voltage is the first object voltage；
One second DC voltage is exported to an output circuit according to one second alternating current power supply using one second circuit of power factor correction, wherein the second circuit of power factor correction framework is to provide one second target voltage less than the first object voltage, and when the second alternating current power supply regular supply, second DC voltage is second target voltage；
By the output circuit according to first DC voltage or one output voltage of the second direct voltage output, wherein when the first DC voltage regular supply, the output circuit is based on first direct voltage output output voltage, and when first DC voltage because first alternating current power supply is abnormal be less than second DC voltage when, the output circuit is based on second direct voltage output output voltage；And
One load voltage is produced according to the output voltage by a DC-DC converter.
10. the backup method of double-output power supplier according to claim 9, it is characterised in that the step of this export one first DC voltage to an output circuit according to one first alternating current power supply using one first circuit of power factor correction includes：
Rectification is carried out to first alternating current power supply to export one first commutating voltage；
First commutating voltage is adjusted to into first DC voltage according to one first power signal；
One first feedback signal is produced according to first DC voltage；And
According to first feedback signal produce to should first object voltage first power signal.
The backup method of 11. double-output power suppliers according to claim 9, it is characterised in that the step of this exports one first DC voltage to an output circuit according to one first alternating current power supply using one first circuit of power factor correction includes：
Rectification is carried out to first alternating current power supply to export one first commutating voltage；
First commutating voltage is adjusted to into first DC voltage according to one first power signal；
One first feedback signal is produced according to first DC voltage respectively by some first feedback circuits；
Some first feedback circuits one of are selected to turn on according to a selection signal by a select unit；And
By one of some first feedback circuits conducting person produce to should first object voltage first power signal.
The backup method of 12. double-output power suppliers according to claim 9, it is characterised in that the step of this exports one second DC voltage to an output circuit according to one second alternating current power supply using one second circuit of power factor correction includes including：
Rectification is carried out to second alternating current power supply to export one second commutating voltage；
Second commutating voltage is adjusted to into second DC voltage according to one second power signal；
One second feedback signal is produced according to second DC voltage；And
According to second feedback signal produce to should the second target voltage second power signal.
The backup method of 13. double-output power suppliers according to claim 9, it is characterised in that the step of this exports one second DC voltage to an output circuit according to one second alternating current power supply using one second circuit of power factor correction includes：
Rectification is carried out to second alternating current power supply to export one second commutating voltage；
First commutating voltage is adjusted to into second DC voltage according to one second power signal；
One second feedback signal is produced according to second DC voltage respectively by some second feedback circuits；
Some second feedback circuits one of are selected to turn on according to a selection signal by a select unit；And
By one of some second feedback circuits conducting person produce to should the second target voltage second power signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510607160.7A CN106549483B (en) | 2015-09-22 | 2015-09-22 | Double-output power supplier and its backup method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510607160.7A CN106549483B (en) | 2015-09-22 | 2015-09-22 | Double-output power supplier and its backup method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106549483A true CN106549483A (en) | 2017-03-29 |
| CN106549483B CN106549483B (en) | 2019-10-01 |
Family
ID=58364894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510607160.7A Expired - Fee Related CN106549483B (en) | 2015-09-22 | 2015-09-22 | Double-output power supplier and its backup method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106549483B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114944695A (en) * | 2021-02-17 | 2022-08-26 | 善元科技股份有限公司 | Backup power supply device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465598A (en) * | 2009-01-08 | 2009-06-24 | 普天信息技术研究院有限公司 | AC/DC converter |
| US20140063868A1 (en) * | 2012-09-06 | 2014-03-06 | Fsp Technology Inc. | Power supply apparatus with power factor correction and pulse width modulation mechanism and method thereof |
| CN103683470A (en) * | 2012-09-17 | 2014-03-26 | 全汉企业股份有限公司 | Power supply device with power supply backup mechanism |
| CN203589831U (en) * | 2013-10-31 | 2014-05-07 | 武汉迈威光电技术有限公司 | Redundant hot backup industrial Ethernet switch power supply |
-
2015
- 2015-09-22 CN CN201510607160.7A patent/CN106549483B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465598A (en) * | 2009-01-08 | 2009-06-24 | 普天信息技术研究院有限公司 | AC/DC converter |
| US20140063868A1 (en) * | 2012-09-06 | 2014-03-06 | Fsp Technology Inc. | Power supply apparatus with power factor correction and pulse width modulation mechanism and method thereof |
| CN103683470A (en) * | 2012-09-17 | 2014-03-26 | 全汉企业股份有限公司 | Power supply device with power supply backup mechanism |
| CN203589831U (en) * | 2013-10-31 | 2014-05-07 | 武汉迈威光电技术有限公司 | Redundant hot backup industrial Ethernet switch power supply |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114944695A (en) * | 2021-02-17 | 2022-08-26 | 善元科技股份有限公司 | Backup power supply device |
| TWI779492B (en) * | 2021-02-17 | 2022-10-01 | 善元科技股份有限公司 | Redundant power supply device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106549483B (en) | 2019-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111226371B (en) | Electric vehicle battery charger | |
| CN110139775B (en) | Method for controlling a charging device on board an electric or hybrid vehicle | |
| US9065327B2 (en) | Efficiency optimized power converter with dual voltage power factor correction | |
| CN104917358B (en) | Occupancy controller | |
| Chen et al. | Modified interleaved current sensorless control for three-level boost PFC converter with considering voltage imbalance and zero-crossing current distortion | |
| US20150236589A1 (en) | Power conditioner and method of controlling power conditioner | |
| EP3563476A1 (en) | Regulated power supply | |
| US20120001599A1 (en) | Power Supply Circuit Capable of Handling Direct Current and Alternating Current and Power Supply Control Method | |
| KR20220103626A (en) | Inverter system, control method of inverter system and parallel connection inverter system | |
| KR20220020955A (en) | Voltage balancing system and method for multilevel converter | |
| KR20190115364A (en) | Single and three phase combined charger | |
| CN106030956B (en) | Two-stage inverter device for energy conversion system and control method thereof | |
| JP2015056933A (en) | Power conversion apparatus | |
| US8928298B2 (en) | Power system and power controlling method and apparatus thereof | |
| US20160118904A1 (en) | Power conversion apparatus | |
| EP2728723A1 (en) | Operation of multichannel active rectifier | |
| CN108054747B (en) | Parallel control method of direct current converter and direct current micro-grid | |
| Nallusamy et al. | Power quality improvement in a low‐voltage DC ceiling grid powered system | |
| US11025168B2 (en) | High efficiency flexible converter | |
| EP4593277A1 (en) | Power conversion system and ripple current suppression method therefor | |
| CN106549483A (en) | Double-output power supplier and its backup method | |
| KR102148514B1 (en) | A votage balancer with dc-dc converter function | |
| TWI571028B (en) | Dual-Input Power Supply And Redundant Method Thereof | |
| US8552697B2 (en) | Universal single-stage power converter with PFC capability | |
| TW201944685A (en) | Electric vehicle battery charger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191001 Termination date: 20210922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |