CN205610494U - No bridge PFC switching power supply circuit - Google Patents
No bridge PFC switching power supply circuit Download PDFInfo
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- CN205610494U CN205610494U CN201620283748.1U CN201620283748U CN205610494U CN 205610494 U CN205610494 U CN 205610494U CN 201620283748 U CN201620283748 U CN 201620283748U CN 205610494 U CN205610494 U CN 205610494U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The utility model discloses a no bridge PFC switching power supply circuit, including n way totem -pote circuit, the totem -pote circuit includes a MOS pipe, the 2nd MOS pipe, first inductance, second inductance, first diode and second diode, the drain electrode of MOS pipe connects the negative pole of first diode and DC output's positive pole, and the source electrode of MOS pipe connects the drain electrode of the 2nd MOS pipe, and the source electrode of the 2nd MOS pipe connects the 2nd diode anode and DC output's negative pole, and the positive pole of first diode connects the negative pole of second diode, the first termination AC input's of first inductance first end, the source electrode of the second termination MOS of first inductance pipe and the first end of second inductance, the positive pole of the first diode of second termination of second inductance, the positive pole of AC input's the first output diode of second termination and the negative pole of second output diode, the negative pole of first output diode connects the positive pole of DC output's positive pole, second output diode to connect DC output's negative pole. The utility model discloses can improve switching power supply's PFC efficiency.
Description
[technical field]
This utility model relates to high frequency switch power, particularly relates to a kind of non-bridge PFC switching power circuit.
[background technology]
Along with the development of switch power technology, owing to input harmonic current limits, PFC (power factor
Correction, PFC) circuit becomes an indispensable part in Switching Power Supply, and opens
The volume requirement closing power supply is more and more less, and efficiency requirements is more and more higher, saves the energy with this.
Non-bridge PFC and interleaved parallel PFC circuit because can have bridge PFC to improve efficiency, increasingly than traditional single tube
Paid attention to by people.If efficiency to be improved, double BOOST half non-bridge PFCs are good selections, allusion quotation
Type topology is shown in Fig. 1, but the pfc circuit shown in Fig. 1 uses double inductance, and magnetic core utilization rate is relatively low, and reliability
Relatively low, relatively costly.
Selecting it addition, interleaved parallel PFC circuit is also a good topology, Fig. 2 is shown in by typical circuit, but schemes
Topology shown in 2 there is also the input rectifying bridge of diode composition, inefficient.
Non-bridge PFC circuits based on two-way switch shown in Fig. 3 is simple and direct, practical, but efficiency can also improve.
Along with technology develops.
New staggered totem pole non-bridge PFC topology by it is further proposed that, Fig. 4 is shown in by typical circuit.Shown in Fig. 4
PFC topology takes into account interleaved parallel PFC and the advantage of double BOOST non-bridge PFCs, and efficiency is the highest, but owing to inciting somebody to action
The body diode of MOS is used as the output diode of PFC, and reverse recovery characteristic is poor, so power is difficult to do greatly.
Along with the development of power device, this staggered totem pole non-bridge PFC Topology Switch device can use carborundum
MOS, reduces reverse recovery current, but the body diode forward voltage drop of silicon carbide mos is excessive, generally higher than 4V,
Cause afterflow process loss excessive, thus reduce efficiency.
[summary of the invention]
The technical problems to be solved in the utility model be to provide one can keep pfc circuit power factor and
On the premise of reliability is basically unchanged, improve the non-bridge PFC switching power circuit of PFC efficiency further.
In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is, a kind of non-bridge PFC is opened
Close power circuit, including ac input end, DC output end, the first output diode and the second output two poles
Pipe, the negative electrode of the first output diode connects the positive pole of DC output end, the anode of the second output diode connects directly
The negative pole of stream outfan, the negative electrode of the second output diode connects the anode of the first output diode；Including n road
Totem-pote circuit, totem-pote circuit include the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, the first inductance, the second inductance,
First diode and the second diode；First metal-oxide-semiconductor drain electrode connects negative electrode and the DC output end of the first diode
Positive pole, the source electrode of the first metal-oxide-semiconductor connect second metal-oxide-semiconductor drain electrode, the source electrode of the second metal-oxide-semiconductor connects the two or two pole
Tube anode and the negative pole of DC output end, the anode of the first diode connects the negative electrode of the second diode；First electricity
Sense first termination ac input end the first end, the first inductance second termination the first metal-oxide-semiconductor source electrode and
First end of the second inductance, the anode of second termination the first diode of the second inductance；The of ac input end
The anode of two termination the first output diodes, n is the integer more than or equal to 1.
Above-described non-bridge PFC switching power circuit, n is more than or equal to 1, misphase between totem-pote circuit
360/n degree.
Above-described non-bridge PFC switching power circuit, including output filter capacitor, output filter capacitor connects
Between positive pole and the negative pole of DC output end.
Above-described non-bridge PFC switching power circuit, the first metal-oxide-semiconductor and the second metal-oxide-semiconductor are silicon carbide mos
Pipe.
Above-described non-bridge PFC switching power circuit, the first diode and the second diode are fast recoveries two
Pole is managed.
It is big that non-bridge PFC switching power circuit of the present utility model solves PFC diode reverse recovery current
Problem, it is possible to ensure on the premise of circuit reliability is basically unchanged, improve further pfc circuit efficiency and
Power density, has broad application prospects.
[accompanying drawing explanation]
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the circuit diagram of double BOOST half non-bridge PFC of prior art.
Fig. 2 is the circuit diagram of prior art interleaved parallel PFC circuit.
Fig. 3 is the circuit diagram of prior art non-bridge PFC circuits based on two-way switch.
Fig. 4 is that prior art is interlocked the circuit diagram of totem pole non-bridge PFC circuits.
Fig. 5 is the circuit diagram of this utility model embodiment 1 non-bridge PFC switching power circuit.
Fig. 6 is the high-frequency switching currents oscillogram of this utility model embodiment 1 non-bridge PFC switching power circuit.
Fig. 7 is the circuit diagram of this utility model embodiment 2 non-bridge PFC switching power circuit.
Fig. 8 is the circuit diagram of this utility model embodiment 3 non-bridge PFC switching power circuit.
[detailed description of the invention]
Structure and the principle of this utility model embodiment 1 non-bridge PFC switching power circuit are as it is shown in figure 5, wrap
Include ac input end, DC output end, output diode D3, output diode D4, output filter capacitor Co
And totem-pote circuit.
The negative electrode of output diode D3 connects the positive pole of DC output end, the anode of output diode D4 connects direct current
The negative pole of outfan, the negative electrode of output diode D4 connects the anode of output diode D3.Output filter capacitor
Co connects between the positive pole of DC output end and negative pole.
Totem-pote circuit includes metal-oxide-semiconductor Q11, metal-oxide-semiconductor Q12, inductance L11, inductance L12, fast recovery two poles
Pipe D11 and fast recovery diode D12.Metal-oxide-semiconductor Q11 drain electrode connects negative electrode and the direct current of fast recovery diode D11
The positive pole of outfan, the source electrode of metal-oxide-semiconductor Q11 connects metal-oxide-semiconductor Q12 drain electrode, and the source electrode of metal-oxide-semiconductor Q12 connects the most extensive
Multiple diode D12 anode and the negative pole of DC output end, the anode of fast recovery diode D11 connects fast recovery two
The negative electrode of pole pipe D12.First end of the first termination ac input end of inductance L11, the second termination metal-oxide-semiconductor
The source electrode of Q11 and first end of inductance L12, the anode of the second termination fast recovery diode D11 of inductance L12.
The anode of the second termination output diode D3 of ac input end.
Wherein, metal-oxide-semiconductor Q11 and metal-oxide-semiconductor Q12 is silicon carbide mos pipe.
When the positive half cycle of input voltage works, and Q12 turns off, due to the metering function of inductance L12, flow through inductance
The electric current of L11 first passes through the body diode of Q11 and is released to electric capacity Co, along with the increase of inductance L12 electric current,
The body diode current of Q11 reduces gradually, due to the Q11 body diode forward voltage drop forward voltage drop more than D11,
The body diode current of final Q11 is kept to zero, and inductance L11 electric current all exports electricity by diode D11
Hold Co；During Q12 conducting, input voltage is charged to inductance L11 by L11-Q12-D4, the body diode of Q11
Electric current is zero, and fast recovery diode D11 is owing to there being the effect of inductance L12, and reverse recovery current is the least.
When input voltage negative half period works, when Q11 turns off, due to the metering function of inductance L12, inductance
The electric current of L11 first passes through the body diode of Q12 and is released to electric capacity Co, along with the increase of inductance L12 electric current,
The body diode current of Q12 reduces gradually, due to Q12 body diode forward voltage drop more than D12 forward pressure
Fall, the body diode current of final Q12 is kept to zero, and inductance L11 electric current is all exported by diode D12
To electric capacity Co；During Q11 conducting, input voltage is charged to inductance L11 by L1-Q1-D3, body two pole of Q12
Tube current is zero, and fast recovery diode D12 is owing to there being the effect of inductance L12, and reverse recovery current is the least.
Thus avoid metal-oxide-semiconductor Q11, the reverse recovery current of Q12 body diode, figure can be improved further
Rise the switching frequency of post pfc circuit, improve the efficiency of totem pole PFC switching power circuit.
Structure and the principle of this utility model embodiment 2 non-bridge PFC switching power circuit as it is shown in fig. 7, with
Unlike embodiment 1, including two-way totem-pote circuit, misphase 180 degree between two-way totem-pote circuit.
No. 1st totem-pote circuit: metal-oxide-semiconductor Q11, Q12, inductance L11, L12, fast recovery diode D11, D12,
No. 2nd totem-pote circuit: metal-oxide-semiconductor Q21, Q22, inductance L21, L22, fast recovery diode D21, D22,
Output filter capacitor Co.
During the 1st road totem pole PFC work:
When the positive half cycle of input voltage works, when Q12 turns off, due to the metering function of inductance L12, inductance
The electric current of L11 first passes through the body diode of Q11 and is released to electric capacity Co, along with the increase of inductance L12 electric current,
The body diode current of Q11 reduces gradually, due to Q11 body diode forward voltage drop more than D11 forward pressure
Fall, the body diode current of final Q11 is kept to zero, and inductance L11 electric current is all exported by diode D11
To electric capacity Co；During Q12 conducting, input voltage is charged to inductance L11 by L11-Q12-D4, the body two of Q11
Pole tube current is zero, and fast recovery diode D11 is owing to there being the effect of inductance L12, and reverse recovery current is the least.
When input voltage negative half period works, when Q11 turns off, due to the metering function of inductance L12, inductance
The electric current of L11 first passes through the body diode of Q12 and is released to electric capacity Co, along with the increase of inductance L12 electric current,
The body diode current of Q12 reduces gradually, due to Q12 body diode forward voltage drop more than D12 forward pressure
Fall, the body diode current of final Q12 is kept to zero, and inductance L11 electric current is all exported by diode D12
To electric capacity Co；During Q11 conducting, input voltage is charged to inductance L11 by L1-Q1-D3, body two pole of Q12
Tube current is zero, and fast recovery diode D12 is owing to there being the effect of inductance L12, and reverse recovery current is the least.
2nd road totem pole PFC operation principle is with the 1st road totem pole PFC operation principle.
The most significantly slow down metal-oxide-semiconductor Q11, the reverse recovery current of Q12, Q21, Q22 body diode, permissible
Improve the switching frequency of totem pole pfc circuit further, improve the efficiency of totem pole PFC switching power circuit.
Structure and the principle of this utility model embodiment 2 non-bridge PFC switching power circuit as it is shown in fig. 7, with
Unlike embodiment 1, including n road totem-pote circuit, 360/n degree between totem-pote circuit.
No. 1st totem-pote circuit: metal-oxide-semiconductor Q11, Q12, inductance L11, L12, fast recovery diode D11, D12,
No. 2nd totem-pote circuit: metal-oxide-semiconductor Q21, Q22, inductance L21, L22, until No. n-th totem-pote circuit:
Metal-oxide-semiconductor Qn1, Qn2, inductance Ln1, Ln2, fast recovery diode Dn1, Dn2, output filter capacitor Co.
During the 1st road totem pole PFC work:
When the positive half cycle of input voltage works, when Q12 turns off, due to the metering function of inductance L12, inductance
The electric current of L11 first passes through the body diode of Q11 and is released to electric capacity Co, along with the increase of inductance L12 electric current,
The body diode current of Q11 reduces gradually, due to Q11 body diode forward voltage drop more than D11 forward pressure
Fall, the body diode current of final Q11 is kept to zero, and inductance L11 electric current is all exported by diode D11
To electric capacity Co；During Q12 conducting, input voltage is charged to inductance L11 by L11-Q12-D4, the body two of Q11
Pole tube current is zero, and fast recovery diode D11 is owing to there being the effect of inductance L12, and reverse recovery current is the least.
When input voltage negative half period works, when Q11 turns off, due to the metering function of inductance L12, inductance
The electric current of L11 first passes through the body diode of Q12 and is released to electric capacity Co, along with the increase of inductance L12 electric current,
The body diode current of Q12 reduces gradually, due to Q12 body diode forward voltage drop more than D12 forward pressure
Fall, the body diode current of final Q12 is kept to zero, and inductance L11 electric current is all exported by diode D12
To electric capacity Co；During Q11 conducting, input voltage is charged to inductance L11 by L1-Q1-D3, body two pole of Q12
Tube current is zero, and fast recovery diode D12 is owing to there being the effect of inductance L12, and reverse recovery current is the least.
2nd to the n-th road totem pole PFC operation principle is with the 1st road totem pole PFC operation principle.
The most significantly slow down metal-oxide-semiconductor Q11, Q12, Q21, Q22 ... the Reverse recovery of Qn1, Qn2 body diode
Electric current, can improve the switching frequency of totem pole pfc circuit further, improves totem pole PFC Switching Power Supply
The efficiency of circuit.
This utility model above example employing silicon carbide mos is as switching tube, simultaneously with an inductance series connection one
Individual fast recovery diode is connected in parallel on silicon carbide mos two ends, owing to the conduction voltage drop of fast recovery diode is left at 1V
The right side, during afterflow, by the body diode afterflow of SIC MOS during beginning, owing to its conducting voltage 4V is remote
More than 1V, its freewheel current quickly transfers to inductance and fast recovery diode branch road, due to the conducting that it is relatively low
Pressure drop, improves efficiency；When the SIC of BOOST turns on again, due to the inductance of fast recovery diode series connection,
Fast recovery diode is turned off in the case of current over-zero naturally, effectively solves this fast recovery diode pole pipe
Reverse-recovery problems；On the one hand this mode make use of the high-speed switch performance of SIC, body diode the most extensive
Multiple little, body diode pressure drop is big, and the feature that the pressure drop of fast recovery diode is low simultaneously avoids the most extensive simultaneously
The reverse recovery characteristic of multiple diode, so that switching damage is the lowest, can improve PFC switch lock further
Rate and efficiency, improve complete machine power density.
Claims (5)
1. a non-bridge PFC switching power circuit, including ac input end, DC output end, the first output
Diode and the second output diode, the negative electrode of the first output diode connect the positive pole of DC output end, second
The anode of output diode connects the negative pole of DC output end, and the negative electrode of the second output diode connects the first output two
The anode of pole pipe；It is characterized in that, including n road totem-pote circuit, totem-pote circuit include the first metal-oxide-semiconductor,
Second metal-oxide-semiconductor, the first inductance, the second inductance, the first diode and the second diode；First metal-oxide-semiconductor leakage
Pole connects the negative electrode of the first diode and the positive pole of DC output end, and the source electrode of the first metal-oxide-semiconductor connects the second metal-oxide-semiconductor
Drain electrode, the source electrode of the second metal-oxide-semiconductor connects the negative pole of the second diode anode and DC output end, the first diode
Anode connect the negative electrode of the second diode；First end of the first termination ac input end of the first inductance, first
The source electrode of second termination the first metal-oxide-semiconductor of inductance and the first end of the second inductance, the second termination of the second inductance
The anode of the first diode；The anode of second termination the first output diode of ac input end, n is for being more than
Integer equal to 1.
Non-bridge PFC switching power circuit the most according to claim 1, it is characterised in that n is more than or equal to
1, misphase 360/n degree between totem-pote circuit.
Non-bridge PFC switching power circuit the most according to claim 1, it is characterised in that include output
Filter capacitor, output filter capacitor connects between the positive pole of DC output end and negative pole.
Non-bridge PFC switching power circuit the most according to claim 1 a, it is characterised in that MOS
Pipe and the second metal-oxide-semiconductor are silicon carbide mos pipes.
Non-bridge PFC switching power circuit the most according to claim 1, it is characterised in that the one or two pole
Pipe and the second diode are fast recovery diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620283748.1U CN205610494U (en) | 2016-04-07 | 2016-04-07 | No bridge PFC switching power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620283748.1U CN205610494U (en) | 2016-04-07 | 2016-04-07 | No bridge PFC switching power supply circuit |
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| CN205610494U true CN205610494U (en) | 2016-09-28 |
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ID=56965650
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620283748.1U Withdrawn - After Issue CN205610494U (en) | 2016-04-07 | 2016-04-07 | No bridge PFC switching power supply circuit |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790614A (en) * | 2016-04-07 | 2016-07-20 | 深圳市高斯宝电气技术有限公司 | Bridgeless PFC switch power circuit |
| WO2019222965A1 (en) * | 2018-05-24 | 2019-11-28 | Astec International Limited | Totem pole bridgeless pfc power converters |
| CN112865562A (en) * | 2021-01-28 | 2021-05-28 | 三峡大学 | Single-phase three-switch tube pseudo-totem-pole type three-level rectifier |
| CN112865566A (en) * | 2021-01-28 | 2021-05-28 | 三峡大学 | Single-phase three-level rectifier with three switching tubes |
| CN112865567A (en) * | 2021-01-28 | 2021-05-28 | 三峡大学 | Heterogeneous diode clamping type three-level rectifier |
| CN112910244A (en) * | 2021-01-28 | 2021-06-04 | 三峡大学 | Single-phase three-level power factor correction circuit of hybrid bridge arm |
| CN112910243A (en) * | 2021-01-28 | 2021-06-04 | 三峡大学 | Single-phase three-level pseudo-totem-pole power factor correction circuit |
| WO2024051553A1 (en) * | 2022-09-09 | 2024-03-14 | 华为数字能源技术有限公司 | Totem-pole pfc circuit and control method therefor, and power source apparatus |
-
2016
- 2016-04-07 CN CN201620283748.1U patent/CN205610494U/en not_active Withdrawn - After Issue
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790614A (en) * | 2016-04-07 | 2016-07-20 | 深圳市高斯宝电气技术有限公司 | Bridgeless PFC switch power circuit |
| CN105790614B (en) * | 2016-04-07 | 2019-01-25 | 深圳市高斯宝电气技术有限公司 | A kind of non-bridge PFC switching power circuit |
| WO2019222965A1 (en) * | 2018-05-24 | 2019-11-28 | Astec International Limited | Totem pole bridgeless pfc power converters |
| CN110771021A (en) * | 2018-05-24 | 2020-02-07 | 雅达电子国际有限公司 | Totem-pole bridgeless PFC power converter |
| US20200161962A1 (en) * | 2018-05-24 | 2020-05-21 | Astec International Limited | Totem Pole Bridgeless PFC Power Converters |
| CN110771021B (en) * | 2018-05-24 | 2024-04-19 | 雅达电子国际有限公司 | Totem pole bridgeless PFC power supply converter |
| US11750087B2 (en) * | 2018-05-24 | 2023-09-05 | Astec International Limited | Totem pole bridgeless PFC power converters |
| CN112910244A (en) * | 2021-01-28 | 2021-06-04 | 三峡大学 | Single-phase three-level power factor correction circuit of hybrid bridge arm |
| CN112865567A (en) * | 2021-01-28 | 2021-05-28 | 三峡大学 | Heterogeneous diode clamping type three-level rectifier |
| CN112910243A (en) * | 2021-01-28 | 2021-06-04 | 三峡大学 | Single-phase three-level pseudo-totem-pole power factor correction circuit |
| CN112865562B (en) * | 2021-01-28 | 2022-05-20 | 三峡大学 | Single-phase three-switch tube pseudo-totem-pole type three-level rectifier |
| CN112865567B (en) * | 2021-01-28 | 2022-05-20 | 三峡大学 | Heterogeneous diode clamping type three-level rectifier |
| CN112865566B (en) * | 2021-01-28 | 2022-05-20 | 三峡大学 | Single-phase three-level rectifier with three switching tubes |
| CN112910243B (en) * | 2021-01-28 | 2022-06-14 | 三峡大学 | Single-phase three-level pseudo-totem-pole power factor correction circuit |
| CN112865566A (en) * | 2021-01-28 | 2021-05-28 | 三峡大学 | Single-phase three-level rectifier with three switching tubes |
| CN112865562A (en) * | 2021-01-28 | 2021-05-28 | 三峡大学 | Single-phase three-switch tube pseudo-totem-pole type three-level rectifier |
| WO2024051553A1 (en) * | 2022-09-09 | 2024-03-14 | 华为数字能源技术有限公司 | Totem-pole pfc circuit and control method therefor, and power source apparatus |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160928 Effective date of abandoning: 20190125 |
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| AV01 | Patent right actively abandoned |