CN101860193B - Power factor correction circuit - Google Patents
Power factor correction circuit Download PDFInfo
- Publication number
- CN101860193B CN101860193B CN2010101632693A CN201010163269A CN101860193B CN 101860193 B CN101860193 B CN 101860193B CN 2010101632693 A CN2010101632693 A CN 2010101632693A CN 201010163269 A CN201010163269 A CN 201010163269A CN 101860193 B CN101860193 B CN 101860193B
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- CN
- China
- Prior art keywords
- circuit
- charge pump
- diode
- fly
- diodes
- 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.)
- Expired - Fee Related
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/425—Arrangements for improving power factor of AC input using a single converter stage both for correction of AC input power factor and generation of a high frequency AC output voltage
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4275—Arrangements for improving power factor of AC input by adding an auxiliary output voltage in series to the input
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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
Abstract
The invention discloses a power factor correction circuit comprising a charge pump, a follow current circuit and a high-frequency filter circuit. An inductor of the high-frequency filter circuit, one inductor of the follow current circuit, two diodes of the charge pump and the other inductor of the follow current circuit are sequentially connected among the output end of a rectification circuit, a filter capacitor and the power supply end of an inverter circuit in series; the external end of a capacitor of the charge pump is connected with the high-frequency output end of the inverter circuit; the external ends of the two diodes of the charge pump are respectively connected with two follow current diodes of the follow current circuit, and the other ends of the two follow current diodes are connected to ensure that current can still flow through the rectification circuit through the follow current diodes and an inductance coil when the diodes of the charge pump are both stopped; and both ends of the inductor of the high-frequency filter circuit are connected with the high-frequency filter capacitor. The invention simplifies the power factor correction circuit, dispenses with an integrated circuit and obviously improves the performance index of power factor correction.
Description
Technical field
The present invention relates to a kind of circuit of power factor correction.
Background technology
APFC generally all need use integrated circuit, the circuit more complicated, and expense is more expensive.Existing passive power factor correction scheme performance is all relatively poor, can't reach the requirement of existing related standards.
Summary of the invention
The purpose of this invention is to provide a kind of circuit of power factor correction, make and under the situation of not using integrated circuit, to simplify circuit, thereby reduce cost, reduce circuit size, significantly improve each item performance index of circuit of power factor correction simultaneously again.
A kind of circuit of power factor correction of the present invention is made up of one or several parallelly connected charge pumps and freewheeling circuit and high-frequency filter circuit; Said freewheeling circuit is made up of fly-wheel diode and inductance coil, and said charge pump is made up of electric capacity and two diodes, and said high-frequency filter circuit is a LC filter circuit of being made up of inductance coil and electric capacity; From the rectification circuit output end to the filter capacitor and between the inverter circuit power end, insert two diodes of an inductance coil of the inductance coil of said high-frequency filter circuit, said freewheeling circuit, said charge pump, another inductance coil of said freewheeling circuit successively with the mode of connecting; The high frequency output of the external termination inverter circuit of the electric capacity of said charge pump; Two fly-wheel diodes of said freewheeling circuit; Their end connects two diode external connection end of charge pump respectively, and the method that connects of their other end should guarantee that rectification circuit still can flow through electric current through two inductance coils of described two fly-wheel diodes and freewheeling circuit when the diode of charge pump all ends.
Circuit of power factor correction as stated; The high-frequency alternating voltage end of the external termination inverter circuit of said charge pump electric capacity; The external positive terminal of charge pump diode connects the negative power end of inverter circuit through first mutual inductor of said freewheeling circuit, the external negative pole end order of charge pump diode and the negative output terminal that connects rectification circuit after the inductance coil of second mutual inductor of said freewheeling circuit and said high-frequency filter circuit is connected; The two ends that these two mutual inductors and charge pump diode join should be ends of the same name, connect a high-frequency filter capacitor between the other end of two mutual inductors; Two fly-wheel diodes are arranged, the external negative pole end of diode that the fly-wheel diode negative pole connects charge pump, the positive pole of this fly-wheel diode connects the negative power end of inverter circuit; Another fly-wheel diode positive pole connects the external positive terminal of charge pump diode, and its negative pole is connected on the tie point of inductance coil of second mutual inductor and high-frequency filter circuit; There is a high-frequency filter capacitor to be connected between the negative power end of rectifier negative output terminal and inverter circuit.
Circuit of power factor correction as stated; The high-frequency alternating voltage end of the external termination inverter circuit of said charge pump electric capacity; The external negative pole end order of charge pump diode and the negative output terminal that connects rectification circuit after the inductance coil of first inductance coil and said high-frequency filter circuit is connected, the external positive terminal of charge pump diode connects the negative power end of inverter circuit through second inductance coil of said freewheeling circuit; Connect a high-frequency filter capacitor between the tie point of the inductance coil of high-frequency filter circuit and first inductance coil and the negative power end of inverter circuit.Two fly-wheel diodes are arranged, and the positive pole of a fly-wheel diode connects the negative power end of inverter circuit, and the external positive terminal of diode that another fly-wheel diode positive pole connects charge pump, the negative pole of two fly-wheel diodes all connect the external negative pole end of diode of charge pump; There is a high-frequency filter capacitor to be connected between the negative power end of rectifier negative output terminal and inverter circuit.
Circuit of power factor correction as stated, freewheeling circuit and high-frequency filter circuit are connected between rectification circuit positive output end and the filter capacitor positive pole.
The alternating voltage that inverter circuit of the present invention produces can directly use, for example directly with it through inductance, electric capacity rear drive fluorescent lamp, also can be with using as direct current after its transformation, rectification, the filtering.The present invention can simplify circuit of power factor correction under the situation of not using integrated circuit, thereby reduces cost, and reduces circuit size, significantly improves the performance index of circuit of power factor correction simultaneously again.Adopting electronic ballast for fluoresent lamp of the present invention with one is example, and recording its ac power input end power factor is 0.984, and the input current each harmonic is: 2 times 0.3%, 3 time 15.8%, 5 time 3.9%, 7 time 1.8%, 9 time 0.9%.The lamp current crest factor is 1.436.These performance index all obviously are superior to the performance requirement of the national standard and the international standard of electronic ballast for fluoresent lamp.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present invention.
Fig. 2 is the circuit theory diagrams of parallelly connected charge pump of the present invention.
Fig. 3 is a mutual inductance afterflow formula circuit of power factor correction schematic diagram of the present invention.
Fig. 4 is a self-induction afterflow formula circuit of power factor correction schematic diagram of the present invention.
Embodiment
Circuit theory of the present invention is referring to Fig. 1, and alternating voltage produces the higher alternating voltage of frequency by inverter circuit behind rectification, capacitor filtering.Press this alternation to feed back to be connected between rectification circuit and the filter capacitor, on the freewheeling circuit of mainly forming by fly-wheel diode and inductance coil, just can influence the interchange input current, the realization power factor correction through one or several charge pump (referring to Fig. 2).High-frequency filter circuit is a LC filter circuit of being made up of inductance coil and electric capacity, in order to eliminate charge pump and the freewheeling circuit electromagnetic interference to electrical network.
The present invention can have kinds of schemes, and wherein the mutual inductance circuit scheme is referring to Fig. 3.The high frequency output of the capacitor C 1 external termination inverter circuit of said charge pump; Two mutual inductor M1 of said freewheeling circuit, the end of the same name of M2 are received respectively on the external connection end of two diode D1 of charge pump, D2; The negative power end of another termination inverter circuit of first mutual inductor M1; The other end of second mutual inductor M2 connects the negative output terminal of rectification circuit through an inductance coil L1, is connected through a high-frequency filter capacitor C2 between the said other end of two mutual inductor M1, M2; A sustained diode 4 is connected between the charge pump diode D2 output link and inverter circuit negative power end of second mutual inductor M2; The charge pump diode D1 that another sustained diode 3 is connected on first mutual inductor M1 exports between the inductance coil L1 end of link and second mutual inductor M2, has a high-frequency filter capacitor C3 to be connected between the negative power end of rectifier negative output terminal and inverter circuit.
Self-induction circuit scheme of the present invention is referring to Fig. 4.The high frequency output of the capacitor C 1 external termination inverter circuit of said charge pump; Two inductance coil L2 of said freewheeling circuit, the end of L3 are received respectively on the external connection end of two diode D2 of charge pump, D1; The other end of first inductance coil L2 connects the negative output terminal of rectifier through the 3rd inductance coil L1; The negative power end of another termination inverter circuit of second inductance coil L3; Be connected through a high-frequency filter capacitor C2 between the said other end of two inductance coil L2, L3; Sustained diode 4 is connected between the link and inverter circuit negative power end of charge pump diode D2 output of first inductance coil L2; Another sustained diode 3 is connected between the link of charge pump diode D2 output of link and first inductance coil L2 of charge pump diode D1 output of second inductance coil L3, has a high-frequency filter capacitor C3 to be connected between the negative power end of rectifier negative output terminal and inverter circuit.
In Fig. 3,4, the LC filter circuit that high-frequency filter circuit is made up of inductance coil L1 and capacitor C 2, C3.The positive output end of the positive supply termination rectification circuit of inverter circuit between the positive-negative power end of inverter circuit, meets a filter capacitor C.
The present invention can also adopt two charge pump solution, promptly on a charge pump C1, D11, D12 basis, increases a charge pump C11, C22, D21, D22.High frequency alternation output is after capacitor C 11, C22 dividing potential drop, and D21, D22 through this charge pump are added to (referring to Fig. 2) on the freewheeling circuit with D11, the D12 of former charge pump.Suitably select circuit parameter, can make to exchange input current more near sinusoidal wave.If necessary, also can adopt the scheme of several charge pumps, at this moment exchange input current waveform better.
The present invention is on the foregoing circuit basis; Can suitably add resistance, to eliminate unwanted parasitic oscillation, the position of high-frequency filter circuit also can be moved; The relative position of diode and inductance, electric capacity also can be done some changes, all within technical scheme protection range of the present invention.
The present invention constitutes inverter circuit and DC power supply circuit with power factor emendation function with rectification circuit, filter capacitor and inverter circuit.The present invention is applicable in rectification or the inverter circuit.
Claims (3)
1. circuit of power factor correction is characterized in that: this circuit is made up of one or several parallelly connected charge pumps and freewheeling circuit and high-frequency filter circuit; Said freewheeling circuit is made up of fly-wheel diode and inductance coil, and said charge pump is made up of electric capacity and two diodes, and said high-frequency filter circuit is a LC filter circuit of being made up of inductance coil and electric capacity; From the rectification circuit output end to the filter capacitor and between the power end of inverter circuit, insert two diodes of an inductance coil of the inductance coil of said high-frequency filter circuit, said freewheeling circuit, said charge pump, another inductance coil of said freewheeling circuit successively with the mode of connecting; The high frequency output of the external termination inverter circuit of the electric capacity of said charge pump; Two inductance coils of said freewheeling circuit are two self-induction coils, or a pair of mutual inductor; Two fly-wheel diodes of said freewheeling circuit; Their end connects two diode external connection end of charge pump respectively, and the method that connects of their other end should guarantee that rectification circuit still can flow through electric current through two inductance coils of described two fly-wheel diodes and freewheeling circuit when the diode of charge pump all ends; One of syndeton of said two fly-wheel diodes is the external negative pole end of diode that a fly-wheel diode negative pole connects charge pump, and the positive pole of this fly-wheel diode connects the negative power end of inverter circuit; Another fly-wheel diode positive pole connects the external positive terminal of charge pump diode, and its negative pole is connected on the tie point of inductance coil of inductance coil and high-frequency filter circuit of said freewheeling circuit; Two of the syndeton of said two fly-wheel diodes is the negative power end that the positive pole of a fly-wheel diode connects inverter circuit; The external positive terminal of diode that another fly-wheel diode positive pole connects charge pump, the negative pole of two fly-wheel diodes all connect the external negative pole end of diode of charge pump.
2. a kind of circuit of power factor correction according to claim 1 is characterized in that: two inductance coils of freewheeling circuit and between the two ends that join of charge pump diode do not connect a high-frequency filter capacitor; Another high-frequency filter capacitor is connected between the negative power end of rectifier negative output terminal and inverter circuit.
3. according to claim 1 or claim 2 circuit of power factor correction, it is characterized in that: freewheeling circuit and high-frequency filter circuit are connected between rectification circuit positive output end and the filter capacitor positive pole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101632693A CN101860193B (en) | 2010-05-05 | 2010-05-05 | Power factor correction circuit |
| PCT/CN2011/073301 WO2011137722A1 (en) | 2010-05-05 | 2011-04-26 | Power factor correction circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101632693A CN101860193B (en) | 2010-05-05 | 2010-05-05 | Power factor correction circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101860193A CN101860193A (en) | 2010-10-13 |
| CN101860193B true CN101860193B (en) | 2012-05-02 |
Family
ID=42945899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101632693A Expired - Fee Related CN101860193B (en) | 2010-05-05 | 2010-05-05 | Power factor correction circuit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101860193B (en) |
| WO (1) | WO2011137722A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860193B (en) * | 2010-05-05 | 2012-05-02 | 张逸兴 | Power factor correction circuit |
| CN102904436B (en) * | 2012-10-22 | 2016-01-20 | 张逸兴 | A kind of Novel power factor correction circuit |
| CN104113201A (en) * | 2014-07-07 | 2014-10-22 | 魏其萃 | High-power-factor low-total-harmonic-distortion quasi active power factor correction circuit and method |
| CN106598190A (en) * | 2016-12-22 | 2017-04-26 | 吴锐 | Computer power supply |
| GB2594659B (en) * | 2018-12-28 | 2023-02-08 | Tridonic Gmbh & Co Kg | Power supply circuit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1200593A (en) * | 1997-03-06 | 1998-12-02 | 株式会社I-Hits研究所 | Power factor improving circuit |
| CN101427450A (en) * | 2006-04-21 | 2009-05-06 | 赤多尼科阿特可两合股份有限公司 | Boost power factor correction circuit (boost PFC) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7057375B2 (en) * | 2002-03-21 | 2006-06-06 | Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen Mbh | Power factor correction |
| DE10242332A1 (en) * | 2002-09-12 | 2004-03-25 | Tridonicatco Gmbh & Co. Kg | Electronic voltage adapter for gas discharge lamp(s) with charge pump for active power factor correction has element for electrically isolated lamp current coupling to supply energy to pump capacitor |
| DE102004039331A1 (en) * | 2004-08-12 | 2006-02-23 | Future New Developments Ltd., George Town | Electronic ballast/choke for a fluorescent lamp has a power factor adjusting circuit made up of diodes, a capacitor and primary and secondary windings on a repeating coil |
| CN101860193B (en) * | 2010-05-05 | 2012-05-02 | 张逸兴 | Power factor correction circuit |
-
2010
- 2010-05-05 CN CN2010101632693A patent/CN101860193B/en not_active Expired - Fee Related
-
2011
- 2011-04-26 WO PCT/CN2011/073301 patent/WO2011137722A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1200593A (en) * | 1997-03-06 | 1998-12-02 | 株式会社I-Hits研究所 | Power factor improving circuit |
| CN101427450A (en) * | 2006-04-21 | 2009-05-06 | 赤多尼科阿特可两合股份有限公司 | Boost power factor correction circuit (boost PFC) |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011137722A1 (en) | 2011-11-10 |
| CN101860193A (en) | 2010-10-13 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20120502 Termination date: 20190505 |