WO2015043237A1 - 一种pfc电路的浪涌防护电路 - Google Patents
一种pfc电路的浪涌防护电路 Download PDFInfo
- Publication number
- WO2015043237A1 WO2015043237A1 PCT/CN2014/079980 CN2014079980W WO2015043237A1 WO 2015043237 A1 WO2015043237 A1 WO 2015043237A1 CN 2014079980 W CN2014079980 W CN 2014079980W WO 2015043237 A1 WO2015043237 A1 WO 2015043237A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pfc
- high voltage
- circuit
- voltage diode
- surge protection
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0083—Converters characterised by their input or output configuration
- H02M1/0085—Partially controlled bridges
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4225—Arrangements for improving power factor of AC input using a non-isolated boost converter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- 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
Definitions
- the present invention relates to the field of circuit protection technologies, and in particular, to a surge protection circuit for a PFC (Power Factor Correction) circuit.
- a surge protection circuit for a PFC (Power Factor Correction) circuit BACKGROUND
- the absorption of lightning or surge energy by the protection circuit tends to have a certain residual energy flow to the subsequent stage circuit, and the residual energy voltage or current mostly exceeds the latter stage.
- the maximum value of the circuit device may cause a power failure, so it is necessary to increase the effective bleeder circuit.
- the main processing measures in the industry are to add a high voltage diode VD5 between the PFC capacitors in the L line and the PFC circuit, and to add a high voltage diode VD6 between the N line and the PFC capacitor in the PFC circuit. Release the vent, as shown in Figure 1.
- the disadvantages of this method are: On the medium and small power AC power supply, when the energy quickly flows through the high voltage diodes VD5 and VD6 to the PFC capacitor C1, the PFC capacitor C1 has a small capacity, is not fast enough to absorb, and will still generate on the capacitor. The higher surge voltage causes damage to the rear stage load circuit.
- the technical problem to be solved by the present invention is to provide a surge protection circuit for a PFC circuit that can simultaneously form surge protection for the PFC circuit and its subsequent circuits.
- the technical solution adopted by the utility model is that the surge protection circuit of the PFC circuit, the L line and the N line of the AC power source are respectively connected to the positive pole of the PFC capacitor in the PFC circuit through the high voltage diode module, in the high voltage diode module and A current limiting device is also connected between the positive poles of the PFC capacitors.
- the high voltage diode module includes: a first high voltage diode and a second high voltage diode; the L line of the alternating current power source is connected to the positive pole of the PFC capacitor through the first high voltage diode and the first current limiting device connected in sequence, and the N line of the alternating current power source The positive pole of the PFC capacitor is connected through a second high voltage diode and a second current limiting device that are sequentially connected.
- the high voltage diode module includes: a first high voltage diode and a second high voltage diode; an L line of the AC power source is connected to the anode of the first high voltage diode, and an N line of the AC power source is connected to the anode of the second high voltage diode, the first high voltage diode
- the cathode of the cathode and the second high voltage diode are shorted and connected to the anode of the PFC capacitor through a current limiting device.
- the current limiting device includes: a thermistor, a varistor, a constant resistor, an inductor, or a TVS (Transient Voltage Suppressor).
- the surge protection circuit of the PFC circuit of the utility model can simultaneously form anti-surge protection for the PFC circuit and the subsequent stage circuit, especially for the PFC of the medium and small power AC power supply.
- the circuit due to the existence of the current limiting device, limits the impact of the instantaneous energy, makes the PFC capacitor not easily damaged, and can effectively absorb the residual voltage energy, and acts as a clamp.
- FIG. 1 is a schematic diagram of a surge protection circuit of a PFC circuit of the prior art
- FIG. 2 is a schematic diagram of a surge protection circuit of a PFC circuit according to a first embodiment of the present invention
- FIG. 3 is a first embodiment of the present invention.
- a surge protection circuit in the form of a PFC circuit connection is shown in detail
- FIG. 4 is a detailed view of a surge protection circuit of a second PFC circuit connection form according to a first embodiment of the present invention
- FIG. 5 is a detailed view of the surge protection circuit of the third PFC circuit connection form according to the first embodiment of the present invention
- FIG. 6 is a schematic diagram of a surge protection circuit of a PFC circuit according to a second embodiment of the present invention.
- DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further explain the technical means and functions of the present invention for achieving the intended purpose, the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.
- the first embodiment of the present invention a surge protection circuit of a PFC circuit, as shown in FIG. 2, the L line of the AC power source is connected to the anode of the first high voltage diode VD1, and the N line of the AC power source is connected to the second high voltage diode VD2.
- the anode, the cathode of the first high voltage diode VD1 and the cathode of the second high voltage diode VD2 are short-circuited and connected to the anode of the PFC capacitor C1 through the current limiting device RT1, and the cathode of the PFC capacitor C1 is connected to the ground level port of the PFC circuit. Ground.
- the PFC capacitor C1 is connected to the load of the latter stage.
- the current limiting device RT1 can use a thermistor, a varistor, a constant resistor, an inductor, or a TVS.
- the thermistor is used, because the resistance value of the thermistor decreases with the increase of the temperature, the voltage can be clamped at the moment of the surge, and the energy is gradually passed through to protect the PFC circuit.
- the connection forms of three commonly used PFC circuits are listed, as shown in Figures 3-5.
- the connection form of the first PFC circuit is shown in Figure 3, the first of the L-line and PFC circuits of the AC power supply.
- the PFC inductor L1 is connected, the N line of the AC power source is connected to the second PFC inductor L2 in the PFC circuit, and the source of the first N-type field effect transistor N1 in the PFC circuit is connected to the source of the second N-type field effect transistor N2. Go to the negative pole of PFC capacitor C1 and ground them together.
- the ground level port of the PFC circuit refers to the source of the first N-type field effect transistor N1 and the source of the second N-type field effect transistor N2.
- VD3 and VD4 in Figure 3 are PFC diodes.
- the connection form of the second PFC circuit is shown in Figure 4, the first line of the AC power L line and the PFC circuit.
- One end of the PFC inductor L1 is connected, the other end of the first PFC inductor L1 is connected to the drain of the first N-type field effect transistor N1, and the N line of the AC power source and the drain of the second N-type field effect transistor N2 in the PFC circuit Connected, the source of the first N-type field effect transistor N1 in the PFC circuit is shorted to the source of the second N-type field effect transistor N2, and the drain of the second N-type field effect transistor N2 is connected through the reverse connection.
- the single loop diode VD8 is connected to ground, the drain of the first N-type field effect transistor N1 is connected to ground through the first single loop diode VD7 connected in reverse, and the cathode of the PFC capacitor C1 is also grounded.
- the ground level port of the PFC circuit refers to the anode of the first single loop diode VD7 and the anode of the second single loop diode VD8.
- VD5 and VD6 in Fig. 4 are all PFC diodes.
- the connection form of the third PFC circuit is as shown in FIG. 5.
- the L line of the AC power source is connected to one end of the first PFC inductor L1 in the PFC circuit, and the other end of the first PFC inductor L1 is simultaneously connected to the first N-type field effect.
- the source of the tube N1 and the drain of the second N-type field effect transistor N2, the source of the second N-type field effect transistor N2 is grounded, the drain of the first N-type field effect transistor N1, the cathode of the PFC diode VD9, and the PFC Capacitor C1 is shorted to the positive pole, and PFC capacitor C1 is grounded to the negative pole.
- the N line of the AC power source is connected to the cathode of the PFC diode VD10 in the PFC circuit, and the anode of the PFC diode VD10 is grounded.
- the ground level port of the PFC circuit refers to the source and PFC of the second N-type field effect transistor N2.
- the anode of the AC power source is connected to the anode of the PFC capacitor C1 through the second high voltage diode VD2 and the second current limiting device RT2 connected in sequence, and the cathode of the PFC capacitor C1 is connected to the ground level port of the PFC circuit.
- the L line of the AC power source is connected to the first PFC inductor in the PFC circuit
- the N line of the AC power source is connected to the second PFC inductor in the PFC circuit
- the PFC capacitor C1 is connected to the load of the latter stage.
- the position of the ground level port of the PFC circuit can also be referred to as shown in FIGS.
- the two high-voltage diodes and the current limiting device of the embodiment of the present invention are used for limiting the inrush current and then discharging to the filter capacitor, that is, the PFC capacitor, thereby preventing the inrush current from flowing through the PFC inductor in the PFC circuit, and further Avoid damage to the switching device, especially for small and medium power PFC circuits. Since the PFC capacitor in the PFC circuit is small, it has no ability to absorb the surge current of the fast impact, which will generate a high residual voltage on the PFC capacitor.
- the damage limiting device introduced by the embodiment of the present invention limits the impact of instantaneous energy, makes the PFC capacitor not easily damaged, and can effectively absorb the residual voltage energy, thereby clamping the pin, and thus can be used for the PFC circuit and
- the rear stage circuit plays an effective protective role.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016516563A JP6313431B2 (ja) | 2013-09-24 | 2014-06-16 | Pfc回路のサージ防護回路 |
EP14848827.3A EP3051650A4 (en) | 2013-09-24 | 2014-06-16 | OVERVOLTAGE PROTECTION FOR PFC SWITCHING |
KR1020167010677A KR20160060728A (ko) | 2013-09-24 | 2014-06-16 | Pfc 회로의 서지 방호 회로 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201320590899.8 | 2013-09-24 | ||
CN201320590899.8U CN203536946U (zh) | 2013-09-24 | 2013-09-24 | 一种pfc电路的浪涌防护电路 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015043237A1 true WO2015043237A1 (zh) | 2015-04-02 |
Family
ID=50423122
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2014/079980 WO2015043237A1 (zh) | 2013-09-24 | 2014-06-16 | 一种pfc电路的浪涌防护电路 |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3051650A4 (zh) |
JP (1) | JP6313431B2 (zh) |
KR (1) | KR20160060728A (zh) |
CN (1) | CN203536946U (zh) |
WO (1) | WO2015043237A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN203536946U (zh) * | 2013-09-24 | 2014-04-09 | 中兴通讯股份有限公司 | 一种pfc电路的浪涌防护电路 |
CN107887898A (zh) * | 2016-09-29 | 2018-04-06 | 维谛技术有限公司 | 一种单相pfc电路的浪涌防护电路及电力电子设备 |
CN108448888B (zh) | 2018-04-10 | 2019-07-16 | 上海推拓科技有限公司 | 开关电源电路 |
TWI672885B (zh) * | 2018-04-13 | 2019-09-21 | 上銀科技股份有限公司 | 機械運作設備的電氣保護裝置 |
US11205382B2 (en) | 2018-11-22 | 2021-12-21 | Novatek Microelectronics Corp. | Sensing circuit for OLED driver and OLED driver using the same |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5420780A (en) * | 1993-12-30 | 1995-05-30 | Omega Power Systems | Apparatus for limiting inrush current |
CN1855658A (zh) * | 2005-03-31 | 2006-11-01 | 国际整流器公司 | 无桥路升压pfc电路的、使用单变流器的电流检测方法 |
CN101645649A (zh) * | 2008-08-07 | 2010-02-10 | 艾默生网络能源***北美公司 | 一种防浪涌pfc电路 |
KR20100023302A (ko) * | 2008-08-21 | 2010-03-04 | 엘지이노텍 주식회사 | 부스트 역률 보상 회로 |
CN102118106A (zh) * | 2009-12-31 | 2011-07-06 | Nxp股份有限公司 | 浪涌保护电路 |
KR20120013102A (ko) * | 2010-08-04 | 2012-02-14 | 리엔 창 일렉트로닉 엔터프라이즈 컴퍼니 리미티드 | 전원 장치 및 전력 공급 방법 |
CN203536946U (zh) * | 2013-09-24 | 2014-04-09 | 中兴通讯股份有限公司 | 一种pfc电路的浪涌防护电路 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW200826444A (en) * | 2006-07-27 | 2008-06-16 | Koninkl Philips Electronics Nv | Switch mode power supply for in-line voltage applications |
JP5521796B2 (ja) * | 2009-11-26 | 2014-06-18 | 富士電機株式会社 | 整流回路 |
JP5442525B2 (ja) * | 2010-04-14 | 2014-03-12 | コーセル株式会社 | 力率改善回路 |
US9590495B2 (en) * | 2011-08-26 | 2017-03-07 | Futurewei Technologies, Inc. | Holdup time circuit and method for bridgeless PFC converter |
CN203167377U (zh) * | 2013-04-03 | 2013-08-28 | 深圳斯派克节能服务有限公司 | 一种led日光灯用非隔离驱动电源 |
-
2013
- 2013-09-24 CN CN201320590899.8U patent/CN203536946U/zh not_active Expired - Lifetime
-
2014
- 2014-06-16 EP EP14848827.3A patent/EP3051650A4/en not_active Withdrawn
- 2014-06-16 KR KR1020167010677A patent/KR20160060728A/ko active Search and Examination
- 2014-06-16 WO PCT/CN2014/079980 patent/WO2015043237A1/zh active Application Filing
- 2014-06-16 JP JP2016516563A patent/JP6313431B2/ja active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5420780A (en) * | 1993-12-30 | 1995-05-30 | Omega Power Systems | Apparatus for limiting inrush current |
CN1855658A (zh) * | 2005-03-31 | 2006-11-01 | 国际整流器公司 | 无桥路升压pfc电路的、使用单变流器的电流检测方法 |
CN101645649A (zh) * | 2008-08-07 | 2010-02-10 | 艾默生网络能源***北美公司 | 一种防浪涌pfc电路 |
KR20100023302A (ko) * | 2008-08-21 | 2010-03-04 | 엘지이노텍 주식회사 | 부스트 역률 보상 회로 |
CN102118106A (zh) * | 2009-12-31 | 2011-07-06 | Nxp股份有限公司 | 浪涌保护电路 |
KR20120013102A (ko) * | 2010-08-04 | 2012-02-14 | 리엔 창 일렉트로닉 엔터프라이즈 컴퍼니 리미티드 | 전원 장치 및 전력 공급 방법 |
CN203536946U (zh) * | 2013-09-24 | 2014-04-09 | 中兴通讯股份有限公司 | 一种pfc电路的浪涌防护电路 |
Non-Patent Citations (1)
Title |
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See also references of EP3051650A4 * |
Also Published As
Publication number | Publication date |
---|---|
KR20160060728A (ko) | 2016-05-30 |
JP2016532411A (ja) | 2016-10-13 |
CN203536946U (zh) | 2014-04-09 |
JP6313431B2 (ja) | 2018-04-18 |
EP3051650A4 (en) | 2016-08-24 |
EP3051650A1 (en) | 2016-08-03 |
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