CN205051573U - Single -phase power factor correction circuit of full -bridge - Google Patents
Single -phase power factor correction circuit of full -bridge Download PDFInfo
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- CN205051573U CN205051573U CN201520862911.5U CN201520862911U CN205051573U CN 205051573 U CN205051573 U CN 205051573U CN 201520862911 U CN201520862911 U CN 201520862911U CN 205051573 U CN205051573 U CN 205051573U
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- diode
- bridge arm
- high frequency
- power factor
- switching device
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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
-
- 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
Abstract
The utility model provides a single -phase power factor correction circuit of full -bridge, include the load and connect in parallel respectively at the direct current BUS capacitors at load both ends, first rectification bridge arm and second rectification bridge arm, first rectification bridge arm includes first diode, a third diode, first diode and third diode series connection, second rectification bridge arm includes the second diode, a fourth diode, still be provided with the high frequency bridge arm, the high frequency bridge arm includes first switching element, the second switch device, still be provided with the 5th diode and the 6th diode, the 5th diode reverse parallel connection is at the both ends of first switching element, the 6th diode reverse parallel connection is at the both ends of second switch device. The utility model discloses, adopt two switching element series -opposing connections, form the route with the aid of the diode that connects in parallel respectively on the switching element, realize that the mid point voltage sum of two rectification bridge arms be a constatn value when the high frequency switch switches over, can be in realization power factor correction, common mode interference is little in the assurance, has reduced the requirement to emi circuit.
Description
Technical field
The utility model belongs to power-supply device field, is specifically related to a kind of full-bridge single phase power factor correcting circuit.
Background technology
Single phase power factor correcting circuit can improve the power factor of power-supply device, reduces the harmonic pollution to electrical network.Single phase power factor correcting circuit conventional at present has a variety of, and wherein the application of Bridgeless power factor circuit correcting circuit is comparatively general, but some Bridgeless power factor circuit correcting circuit exists, and interference is large, the unmanageable problem of EMI, trace it to its cause or be that the mid point of two rectifying bridge arms of its circuit can not keep a steady state value to large ground voltage sum when HF switch switches, be the value of a high frequency change, thus it is large to cause high frequency common mode to be disturbed.
Utility model content
The utility model is in order to solve above-mentioned problems of the prior art, the utility model provides a kind of full-bridge single phase power factor correcting circuit, the mid-point voltage sum that can realize two rectifying bridge arms when HF switch switches is a steady state value, thus eliminate the source producing high frequency common mode interference, so can while realizing power factor correction, guarantee common mode disturbances is little, reduces the requirement to EMI circuit.
The concrete technical scheme that the utility model adopts is:
A kind of full-bridge single phase power factor correcting circuit, comprise load and be connected in parallel on the dc-link capacitance at load two ends respectively, first rectifying bridge arm and the second rectifying bridge arm, first rectifying bridge arm comprises the first diode, 3rd diode, first diode is connected with the 3rd Diode series, second rectifying bridge arm comprises the second diode, 4th diode, second diode is connected with the 4th Diode series, also be provided with high frequency brachium pontis, high frequency brachium pontis comprises the first switching device, second switch device, first switching device negative pole is connected with the first rectifying bridge arm mid point, second switch device negative pole is connected with the second rectifying bridge arm mid point, first switching device positive pole is connected with second switch device positive pole, also be provided with the 5th diode and the 6th diode, 5th diode reverse is connected in parallel on the two ends of the first switching device, 6th diode reverse is connected in parallel on the two ends of second switch device.
Also be provided with LC filter circuit, LC filter circuit comprises the first filter inductance, the second filter inductance, filter capacitor, connects respectively after the first filter inductance, the second filter inductance and be connected in parallel on high frequency brachium pontis two ends in filter filter capacitor two ends.
The first described switching device and second switch device are all insulated gate bipolar transistor IGBT, or are all metal-oxide layer-semiconductor-field-effect transistor MOSFET.
The beneficial effects of the utility model are:
The utility model, adopt two switching device differential concatenations, path is formed by means of the diode be connected in parallel on respectively on switching device, realizing the mid-point voltage sum of two rectifying bridge arms when HF switch switches is a steady state value, eliminate the source producing high frequency common mode interference, so while realizing power factor correction, can ensure that common mode disturbances is little, reduce the requirement to EMI circuit.
Accompanying drawing explanation
Fig. 1 is circuit theory schematic diagram of the present utility model;
Fig. 2 be the utility model full-bridge single phase power factor correcting circuit when the positive half cycle of civil power, current circuit schematic diagram when high frequency switching device is opened;
Fig. 3 be the utility model full-bridge single phase power factor correcting circuit when the positive half cycle of civil power, high frequency switching device turn off time current circuit schematic diagram;
Fig. 4 be the utility model full-bridge single phase power factor correcting circuit when civil power negative half period, current circuit schematic diagram when high frequency switching device is opened;
Fig. 5 be the utility model full-bridge single phase power factor correcting circuit when civil power negative half period, high frequency switching device turn off time current circuit schematic diagram;
In accompanying drawing, R, load, C1, dc-link capacitance, D1, the first diode, D2, the second diode, D3, the 3rd diode, D4, the 4th diode, D5, the 5th diode, D6, the 6th diode, S1, the first switching device, S2, second switch device, L1, the first filter inductance, L2, the second filter inductance, C2, filter capacitor.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail:
A kind of full-bridge single phase power factor correcting circuit, comprise load R and be connected in parallel on the dc-link capacitance C1 at load R two ends respectively, first rectifying bridge arm and the second rectifying bridge arm, first rectifying bridge arm comprises the first diode D1, 3rd diode D3, first diode D1 and the 3rd diode D3 is connected in series, second rectifying bridge arm comprises the second diode D2, 4th diode D4, second diode D2 and the 4th diode D4 is connected in series, also be provided with high frequency brachium pontis, high frequency brachium pontis comprises the first switching device S1, second switch device S2, first switching device S1 negative pole is connected with the first rectifying bridge arm mid point A, second switch device S2 negative pole is connected with the second rectifying bridge arm mid point B, first switching device S1 positive pole is connected with second switch device S2 positive pole, also be provided with the 5th diode D5 and the 6th diode D6, 5th diode D5 is connected in reverse parallel in the two ends of the first switching device S1, 6th diode D6 is connected in reverse parallel in the two ends of second switch device S2.
Also be provided with LC filter circuit, LC filter circuit comprises the first filter inductance L1, the second filter inductance L2, filter capacitor C2, connects respectively after the first filter inductance L1, the second filter inductance L2 and be connected in parallel on high frequency brachium pontis two ends in filter filter capacitor C2 two ends.LC filter circuit is for realizing the connection between two rectifying bridge arms and single-phase electrical network.
The first described switching device S1 and second switch device S2 is insulated gate bipolar transistor IGBT, or is all metal-oxide layer-semiconductor-field-effect transistor MOSFET.
Specific embodiment one, as shown in Fig. 1 to Fig. 5, when line voltage is positive half cycle, the first switching device S1 and second switch device S2 simultaneously high frequency turns on and off, and the two drive singal is consistent.When the first switching device S1 and second switch device S2 opens simultaneously, electric current, from the live wire L of civil power, flows through the first inductance L 1, first switching device S1, the anti-paralleled diode D6 of second switch device S2, the second inductance L 2, gets back to the zero line N of civil power.
When the first switching device S1 and second switch device S2 turns off simultaneously, electric current, from the live wire L of civil power, flows through the first inductance L 1, first diode D1, dc-link capacitance C1 and load, the 4th diode D4, the second inductance L 2, gets back to the zero line N of civil power.
When line voltage is negative half period, the first switching device S1 and second switch device S2 simultaneously high frequency turns on and off, and the two drive singal is the same.When the first switching device S1 and second switch device (S2) are opened simultaneously, electric current is from the zero line N of civil power, flow through the second inductance L 2, second switch device S2, the anti-paralleled diode D5 of the first switching device S1, the first inductance L 1, get back to the live wire L of civil power.
When the first switching device S1 and second switch device S2 turns off simultaneously, electric current, from the zero line N of civil power, flows through the second inductance L 2, second diode D2, dc-link capacitance C1 and load, the 3rd diode D3, the first inductance L 1, gets back to the live wire L of civil power.
Specific embodiment two, when line voltage is positive half cycle, the first switching device S1 high frequency turns on and off, and second switch device S2 often closes or often opens.When line voltage is negative half period, second switch device S2 high frequency turns on and off, and the first switching device S1 often closes or often opens.Its current direction is identical with specific embodiment one.
The utility model, adopt two switching device differential concatenations, path is formed by means of the diode be connected in parallel on respectively on switching device, realizing the mid-point voltage sum of two rectifying bridge arms when HF switch switches is a steady state value, eliminate the source producing high frequency common mode interference, so while realizing power factor correction, can ensure that common mode disturbances is little, reduce the requirement to EMI circuit.
Claims (3)
1. a full-bridge single phase power factor correcting circuit, comprise load (R) and be connected in parallel on the dc-link capacitance (C1) at load (R) two ends respectively, first rectifying bridge arm and the second rectifying bridge arm, first rectifying bridge arm comprises the first diode (D1), 3rd diode (D3), first diode (D1) and the 3rd diode (D3) are connected in series, second rectifying bridge arm comprises the second diode (D2), 4th diode (D4), second diode (D2) and the 4th diode (D4) are connected in series, also be provided with high frequency brachium pontis, high frequency brachium pontis comprises the first switching device (S1), second switch device (S2), it is characterized in that: the first switching device (S1) negative pole is connected with the first rectifying bridge arm mid point (A), second switch device (S2) negative pole is connected with the second rectifying bridge arm mid point (B), first switching device (S1) positive pole is connected with second switch device (S2) positive pole, also be provided with the 5th diode (D5) and the 6th diode (D6), 5th diode (D5) is connected in reverse parallel in the two ends of the first switching device (S1), 6th diode (D6) is connected in reverse parallel in the two ends of second switch device (S2).
2. a kind of full-bridge single phase power factor correcting circuit according to claim 1, it is characterized in that: be also provided with LC filter circuit, LC filter circuit comprises the first filter inductance (L1), the second filter inductance (L2), filter capacitor (C2), connects respectively after the first filter inductance (L1), the second filter inductance (L2) and be connected in parallel on high frequency brachium pontis two ends in filter filter capacitor (C2) two ends.
3. a kind of full-bridge single phase power factor correcting circuit according to claim 1, it is characterized in that: described the first switching device (S1) and second switch device (S2) are all insulated gate bipolar transistor IGBT, or be all metal-oxide layer-semiconductor-field-effect transistor MOSFET.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520862911.5U CN205051573U (en) | 2015-11-02 | 2015-11-02 | Single -phase power factor correction circuit of full -bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520862911.5U CN205051573U (en) | 2015-11-02 | 2015-11-02 | Single -phase power factor correction circuit of full -bridge |
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| CN205051573U true CN205051573U (en) | 2016-02-24 |
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| CN201520862911.5U Active CN205051573U (en) | 2015-11-02 | 2015-11-02 | Single -phase power factor correction circuit of full -bridge |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972777A (en) * | 2017-05-19 | 2017-07-21 | 深圳市奥耐电气技术有限公司 | A kind of efficiently two-way AC DC converters |
| CN107147324A (en) * | 2017-05-19 | 2017-09-08 | 深圳市奥耐电气技术有限公司 | One kind efficiently isolates two-way AC DC converters |
| TWI723491B (en) * | 2019-08-14 | 2021-04-01 | 台達電子工業股份有限公司 | Bidirectional power factor correction module |
| CN113039712A (en) * | 2019-06-26 | 2021-06-25 | 华为技术有限公司 | Bidirectional power conversion system and control method |
-
2015
- 2015-11-02 CN CN201520862911.5U patent/CN205051573U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972777A (en) * | 2017-05-19 | 2017-07-21 | 深圳市奥耐电气技术有限公司 | A kind of efficiently two-way AC DC converters |
| CN107147324A (en) * | 2017-05-19 | 2017-09-08 | 深圳市奥耐电气技术有限公司 | One kind efficiently isolates two-way AC DC converters |
| CN113039712A (en) * | 2019-06-26 | 2021-06-25 | 华为技术有限公司 | Bidirectional power conversion system and control method |
| CN113039712B (en) * | 2019-06-26 | 2023-03-10 | 华为数字能源技术有限公司 | Bidirectional power conversion system and control method |
| TWI723491B (en) * | 2019-08-14 | 2021-04-01 | 台達電子工業股份有限公司 | Bidirectional power factor correction module |
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