CN102522883A - Passive power factor correction circuit - Google Patents
Passive power factor correction circuit Download PDFInfo
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- CN102522883A CN102522883A CN2011104302204A CN201110430220A CN102522883A CN 102522883 A CN102522883 A CN 102522883A CN 2011104302204 A CN2011104302204 A CN 2011104302204A CN 201110430220 A CN201110430220 A CN 201110430220A CN 102522883 A CN102522883 A CN 102522883A
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- power factor
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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
Abstract
A passive power factor correction circuit relates to electronic technology, and comprises a first capacitor, a first diode, a second capacitor, a fourth diode, a third capacitor, a second diode, a third diode, a fifth diode and a sixth diode, wherein the first capacitor is arranged between a high level point and a first connecting point, the first diode is arranged between the first connecting point and a second connecting point, the second capacitor is arranged between the second connecting point and a third connecting point, the fourth diode is arranged between the third connecting point and a fourth connecting point, the third capacitor is arranged between a low level point and the fourth connecting point, the second diode is arranged between the low level point and the first connecting point, the third diode is arranged between the low level point and the third connecting point, the fifth diode is arranged between the high level point and the second connecting point, the sixth diode is arranged between the high level point and the fourth connecting point, and a cathode of the sixth diode is connected with the high level point. The high level point and the low level point serve as two output ends. By the aid of the passive power factor correction circuit, high power factor can be realized, an RF (power factor) value can exceed 0.9, and extra dissipated power cannot be generated.
Description
Technical field
The present invention relates to electronic technology.
Background technology
Along with the continuous development of power electronic technology, increasing switching power unit is widely used in various field, makes Switching Power Supply to the influence of electrical network, and seeming like degradation problem under harmonic pollution and the input power factor becomes increasingly conspicuous.For reducing harmonic pollution and the electromagnetic interference of device, corresponding harmonic suppressing method and circuit of power factor correction have been proposed to electrical network.
Circuit of power factor correction generally is divided into APFC (APFC) and PPFC (PPFC).APFC is the main method of power factor correction, and it is little, in light weight and power factor is adjusted to approach 1 that it has a volume, and the input current total harmonic distortion drops to the characteristics below 10%.Sort circuit is fit to make high performance Switching Power Supply, but owing to will adopt special chip, cost is higher, is difficult to be applied on the Switching Power Supply of middle low power.
The fall passive alignment technique of power factor of single-phase rectifier electricity is in rectification circuit, to increase the rectifier bridge angle of flow with the LC filter, improves power factor thereby reduce current harmonics.PPFC has replaced the higher active device of price owing to components and parts such as adopting inductance, electric capacity, diode, thereby the cost of Switching Power Supply is reduced.Though adopt the resulting power factor of PPFC high not as the active power factor circuit, but still can make the power factor of circuit bring up to 0.7 to 0.8, current harmonic content drops to below 40%.Thereby this technology is extensively adopted in the electronic equipment of middle low capacity.
But PPFC also exists such as crest factor and the more high technical problem of harmonic content, still needs further to improve.Passive pfc circuit is operated in power frequency (50.60Hz) state as a kind of front end filter of rectification circuit simultaneously, and the electric capacity of use and iron-core inductance are in power frequency low pass or the logical state of band, thereby the filter volume and weight is huger.(" power technology application ", in December, 2002, Deng Weihua, Zhang Bo.)
Technical problem to be solved by this invention is to provide a kind of and can realize higher power factor and more high efficiency novel passive PF correcting circuit.
The technical scheme that the present invention solve the technical problem employing is that a kind of passive power factor correcting circuit comprises first electric capacity that is arranged between the high level point and first tie point; Be arranged at first diode between first tie point and second tie point; The positive pole of first diode connects first tie point; Be arranged at second electric capacity between second tie point and the 3rd tie point; Be arranged at the 4th diode between the 3rd tie point and the 4th tie point, its positive pole connects the 3rd tie point; Be arranged at the 3rd electric capacity between ground level point and the 4th tie point; Be arranged at second diode between the ground level point and first tie point, its plus earth level point; Be arranged at the 3rd diode between ground level point and the 3rd tie point, its plus earth level point; Be arranged at the 5th diode between the high level point and second tie point, its negative pole connects the high level point; Be arranged at the 6th diode between high level point and the 4th tie point, its negative pole connects the high level point; High level point and ground level are o'clock as two outputs.
The invention has the beneficial effects as follows that can realize the power factor higher than old circuit, the PF value is bigger.Can surpass 0.9; Can not produce extra dissipation power, improve the efficient of whole proposal; The withstand voltage of electric capacity further reduces, and helps to improve the life-span.
Description of drawings
Fig. 1 is a schematic diagram of the present invention.
Embodiment
Referring to Fig. 1.The present invention includes:
Be arranged at first capacitor C 1 between the high level point and the first tie point pfc1;
Be arranged at the first diode D1 between the first tie point pfc1 and the second tie point pfc2; The positive pole of the first diode D1 meets the first tie point pfc1;
Be arranged at second capacitor C 2 between the second tie point pfc2 and the 3rd tie point pfc3;
Be arranged at the 4th diode D4 between the 3rd tie point pfc3 and the 4th tie point pfc4, its positive pole meets the 3rd tie point pfc3;
Be arranged at the 3rd capacitor C 3 between ground level point and the 4th tie point pfc4;
Be arranged at the second diode D2 between the ground level point and the first tie point pfc1, its plus earth level point;
Be arranged at the 3rd diode D3 between ground level point and the 3rd tie point pfc3, its plus earth level point;
Be arranged at the 5th diode D5 between the high level point and the second tie point pfc2, its negative pole connects the high level point;
Be arranged at the 6th diode D6 between high level point and the 4th tie point pfc4, its negative pole connects the high level point;
High level point and ground level are o'clock as two outputs.
Claims (1)
1. a passive power factor correcting circuit is characterized in that, comprising:
Be arranged at first electric capacity (C1) between high level point and first tie point (pfc1);
Be arranged at first diode (D1) between first tie point (pfc1) and second tie point (pfc2); The positive pole of first diode (D1) connects first tie point (pfc1);
Be arranged at second electric capacity (C2) between second tie point (pfc2) and the 3rd tie point (pfc3);
Be arranged at the 4th diode (D4) between the 3rd tie point (pfc3) and the 4th tie point (pfc4), its positive pole connects the 3rd tie point (pfc3);
Be arranged at the 3rd electric capacity (C3) between ground level point and the 4th tie point (pfc4);
Be arranged at second diode (D2) between ground level point and first tie point (pfc1), its plus earth level point;
Be arranged at the 3rd diode (D3) between ground level point and the 3rd tie point (pfc3), its plus earth level point;
Be arranged at the 5th diode (D5) between high level point and second tie point (pfc2), its negative pole connects the high level point;
Be arranged at the 6th diode (D6) between high level point and the 4th tie point (pfc4), its negative pole connects the high level point;
High level point and ground level are o'clock as two outputs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104302204A CN102522883A (en) | 2011-12-20 | 2011-12-20 | Passive power factor correction circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104302204A CN102522883A (en) | 2011-12-20 | 2011-12-20 | Passive power factor correction circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102522883A true CN102522883A (en) | 2012-06-27 |
Family
ID=46293703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104302204A Pending CN102522883A (en) | 2011-12-20 | 2011-12-20 | Passive power factor correction circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN102522883A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904878A (en) * | 2014-01-09 | 2014-07-02 | 常州隆辉照明科技有限公司 | Efficient power factor compensating circuit without switch |
| CN106374736A (en) * | 2016-11-22 | 2017-02-01 | 郑州搜趣信息技术有限公司 | Sine wave voltage PFC circuit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2303428Y (en) * | 1997-06-11 | 1999-01-06 | 西安无线电二厂 | Fluorescent lamp electronic ballast having active correcting circuit |
| CN1582083A (en) * | 2003-08-01 | 2005-02-16 | 张玉清 | Electronic hallast for gas discharge lamp |
| CN101861018A (en) * | 2010-05-05 | 2010-10-13 | 金杲易光电科技(深圳)有限公司 | LED switch power supply capable of dimming |
| CN101998741A (en) * | 2010-08-13 | 2011-03-30 | 上海电机学院 | Electromagnetic induction lamp |
| CN201813315U (en) * | 2010-10-19 | 2011-04-27 | 北京加维通讯电子技术有限公司 | Passive power factor correction circuit |
| CN201994844U (en) * | 2011-04-11 | 2011-09-28 | 董振隆 | Power supply with passive power factor correction network |
| CN202435261U (en) * | 2011-12-20 | 2012-09-12 | 成都成电硅海科技股份有限公司 | Passive power factor correction circuit |
-
2011
- 2011-12-20 CN CN2011104302204A patent/CN102522883A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2303428Y (en) * | 1997-06-11 | 1999-01-06 | 西安无线电二厂 | Fluorescent lamp electronic ballast having active correcting circuit |
| CN1582083A (en) * | 2003-08-01 | 2005-02-16 | 张玉清 | Electronic hallast for gas discharge lamp |
| CN101861018A (en) * | 2010-05-05 | 2010-10-13 | 金杲易光电科技(深圳)有限公司 | LED switch power supply capable of dimming |
| CN101998741A (en) * | 2010-08-13 | 2011-03-30 | 上海电机学院 | Electromagnetic induction lamp |
| CN201813315U (en) * | 2010-10-19 | 2011-04-27 | 北京加维通讯电子技术有限公司 | Passive power factor correction circuit |
| CN201994844U (en) * | 2011-04-11 | 2011-09-28 | 董振隆 | Power supply with passive power factor correction network |
| CN202435261U (en) * | 2011-12-20 | 2012-09-12 | 成都成电硅海科技股份有限公司 | Passive power factor correction circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904878A (en) * | 2014-01-09 | 2014-07-02 | 常州隆辉照明科技有限公司 | Efficient power factor compensating circuit without switch |
| CN106374736A (en) * | 2016-11-22 | 2017-02-01 | 郑州搜趣信息技术有限公司 | Sine wave voltage PFC circuit |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120627 |