CN204761284U - Passive power factor correction circuit - Google Patents
Passive power factor correction circuit Download PDFInfo
- Publication number
- CN204761284U CN204761284U CN201520473365.6U CN201520473365U CN204761284U CN 204761284 U CN204761284 U CN 204761284U CN 201520473365 U CN201520473365 U CN 201520473365U CN 204761284 U CN204761284 U CN 204761284U
- Authority
- CN
- China
- Prior art keywords
- electric capacity
- diode
- connects
- power factor
- inductance
- 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
Links
Classifications
-
- 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
Landscapes
- Rectifiers (AREA)
Abstract
The utility model discloses a passive power factor correction circuit, including inductance L1, electric capacity C1, diode D1 and diode D3, inductance L1 and input voltage U1 are connected to electric capacity C1's one end, and inductance L1 and input voltage U1's the other end is connected to electric capacity C1's the other end, and electric capacity C2, electric capacity C3, electric capacity C4, diode D5's positive pole and diode D6's negative pole are connected to inductance L1's the other end, and electric capacity C7 and ground connection are connected to electric capacity C2's the other end. The utility model discloses passive power factor correction circuit has increased volume and weight that auxiliary circuit reduces the wave filter on passive power factor correction's basis, through the angle of flow of increase rectifier bridge to having reduced strange harmonic component and having eliminated the even -order harmonic, further carried high power factor simultaneously, reduced current harmonic, and circuit structure is simple, components and parts are few, no chip structure, very big reduction the cost of manufacture.
Description
Technical field
The utility model relates to a kind of circuit of power factor correction, specifically a kind of passive power factor correcting circuit.
Background technology
Along with the development of power electronic technology, increasing switching power unit is widely used in various different field, makes the impact of Switching Power On Electric Net, becomes increasingly conspicuous as degradation problem under harmonic pollution and input power factor seems.For reducing device to the harmonic pollution of electrical network and electromagnetic interference, propose corresponding harmonic suppressing method and circuit of power factor correction.Circuit of power factor correction is generally divided into Active Power Factor Correction and PPFC (Passive Power Factor Correction).Active Power Factor Correction is the main method of power factor correction, and it is little, lightweight and power factor can be made to adjust to close to 1 that it has volume, and input current total harmonic distortion drops to the feature of less than 10%.This circuit is applicable to making high performance Switching Power Supply, but owing to adopting special chip, cost is higher, on the power supply being difficult to be applied to middle low power.
Utility model content
The purpose of this utility model is to provide the passive power factor correcting circuit that a kind of structure is simple, cost is low, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of passive power factor correcting circuit, comprise inductance L 1, electric capacity C1, diode D1 and diode D3, one end of described electric capacity C1 connects inductance L 1 and input voltage U1, the other end of electric capacity C1 connects the other end of inductance L 1 and input voltage U1, the other end of inductance L 1 connects electric capacity C2, electric capacity C3, electric capacity C4, the anode of diode D5 and the negative electrode of diode D6, the other end of electric capacity C2 connects electric capacity C7 and ground connection, the other end of electric capacity C7 connects the other end and the inductance L 3 of inductance L 2, the other end of electric capacity C3 connects electric capacity C5, the anode of diode D7 and the negative electrode of diode D8, the anode of diode D6 connects the anode of diode D8, the negative pole of electric capacity C6 and output voltage U2, the negative electrode of diode D7 connects the negative electrode of diode D5, the other end of electric capacity C6 and the positive pole of output voltage U2, the other end of electric capacity C4 connects the negative electrode of diode D1 and the anode of diode D2, the anode of diode D1 connects anode and the power supply VCC of diode D3, the negative electrode of diode D2 connects the negative electrode of diode D4, the anode of diode D4 connects the other end of electric capacity C5 and the negative electrode of diode D3.
As preferred version of the present utility model: described power supply VCC is 12V direct current.
Compared with prior art, the beneficial effects of the utility model are: the utility model passive power factor correcting circuit adds auxiliary circuit to reduce volume and the weight of filter on the basis of PPFC (Passive Power Factor Correction), by increasing the angle of flow of rectifier bridge, thus reduce odd harmonic terms and eliminate even-order harmonic, improve power factor further simultaneously, reduce current harmonics, and circuit structure is simple, components and parts are few, and chipless structure, greatly reduces cost of manufacture.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of passive power factor correcting circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of passive power factor correcting circuit, comprise inductance L 1, electric capacity C1, diode D1 and diode D3, one end of described electric capacity C1 connects inductance L 1 and input voltage U1, the other end of electric capacity C1 connects the other end of inductance L 1 and input voltage U1, the other end of inductance L 1 connects electric capacity C2, electric capacity C3, electric capacity C4, the anode of diode D5 and the negative electrode of diode D6, the other end of electric capacity C2 connects electric capacity C7 and ground connection, the other end of electric capacity C7 connects the other end and the inductance L 3 of inductance L 2, the other end of electric capacity C3 connects electric capacity C5, the anode of diode D7 and the negative electrode of diode D8, the anode of diode D6 connects the anode of diode D8, the negative pole of electric capacity C6 and output voltage U2, the negative electrode of diode D7 connects the negative electrode of diode D5, the other end of electric capacity C6 and the positive pole of output voltage U2, the other end of electric capacity C4 connects the negative electrode of diode D1 and the anode of diode D2, the anode of diode D1 connects anode and the power supply VCC of diode D3, the negative electrode of diode D2 connects the negative electrode of diode D4, the anode of diode D4 connects the other end of electric capacity C5 and the negative electrode of diode D3.
Power supply VCC is 12V direct current.
Operation principle of the present utility model is: auxiliary circuit is made up of diode D1, D2, D3, D4 and electric capacity C4, C5, and diode D5 ~ D8 forms bridge type rectification circuit, and the voltage that the anode of diode D1, D3 meets+12V charges to electric capacity C4, C5.When input voltage U1 is positive half wave, electric capacity C5 is charged to 12V, 12V is exceeded than rectifier bridge diode D5 anode voltage, along with the rising of input voltage, first diode D4 anode voltage reaches voltage on filter capacitor C6 and open-minded, electric capacity C5 discharges, and then rectifier bridge is open-minded, and C5 discharge off diode D4 automatically shuts down.In like manner, when input voltage U1 enters negative half-wave, electric capacity C4 and booster diode D1 carries out discharge and recharge and the diode current flow angle in whole power frequency period is increased, thus improves power factor and reduce total harmonic distortion.Circuit adds auxiliary circuit to reduce volume and the weight of filter on the basis of PPFC (Passive Power Factor Correction), by increasing the angle of flow of rectifier bridge, thus reduce odd harmonic terms and eliminate even-order harmonic, improve power factor further simultaneously, reduce current harmonics, and circuit structure is simple, components and parts are few, chipless structure, greatly reduces cost of manufacture.
Claims (2)
1. a passive power factor correcting circuit, comprise inductance L 1, electric capacity C1, diode D1 and diode D3, it is characterized in that, one end of described electric capacity C1 connects inductance L 1 and input voltage U1, the other end of electric capacity C1 connects the other end of inductance L 1 and input voltage U1, the other end of inductance L 1 connects electric capacity C2, electric capacity C3, electric capacity C4, the anode of diode D5 and the negative electrode of diode D6, the other end of electric capacity C2 connects electric capacity C7 and ground connection, the other end of electric capacity C7 connects the other end and the inductance L 3 of inductance L 2, the other end of electric capacity C3 connects electric capacity C5, the anode of diode D7 and the negative electrode of diode D8, the anode of diode D6 connects the anode of diode D8, the negative pole of electric capacity C6 and output voltage U2, the negative electrode of diode D7 connects the negative electrode of diode D5, the other end of electric capacity C6 and the positive pole of output voltage U2, the other end of electric capacity C4 connects the negative electrode of diode D1 and the anode of diode D2, the anode of diode D1 connects anode and the power supply VCC of diode D3, the negative electrode of diode D2 connects the negative electrode of diode D4, the anode of diode D4 connects the other end of electric capacity C5 and the negative electrode of diode D3.
2. a kind of passive power factor correcting circuit according to claim 1, is characterized in that, described power supply VCC is 12V direct current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520473365.6U CN204761284U (en) | 2015-07-04 | 2015-07-04 | Passive power factor correction circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520473365.6U CN204761284U (en) | 2015-07-04 | 2015-07-04 | Passive power factor correction circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204761284U true CN204761284U (en) | 2015-11-11 |
Family
ID=54475952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520473365.6U Expired - Fee Related CN204761284U (en) | 2015-07-04 | 2015-07-04 | Passive power factor correction circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204761284U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2015
- 2015-07-04 CN CN201520473365.6U patent/CN204761284U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101394091B (en) | Voltage feedback single-stage power factor calibrating circuit | |
| CN201766508U (en) | Single-phase single-pole full-bridge isolated power factor correction converter | |
| CN103683952B (en) | A kind of integration in parallel connection formula Buck-Flyback power factor correction pfc converter topology | |
| CN104917392A (en) | Broad pulse trigger type high-power trigger boost circuit based on phase shift processing | |
| CN104780692A (en) | Single-stage non-bridge LED driving circuit integrated by double Boost and Flyback | |
| CN204761284U (en) | Passive power factor correction circuit | |
| CN109698618A (en) | The high-gain boost converter and its control method that coupling inductance boosting unit is realized | |
| CN208158417U (en) | A kind of Switching Power Supply shutdown output discharge line | |
| CN105099162A (en) | Composite type high-efficiency power factor correction circuit | |
| CN204967611U (en) | Compound high -efficient power factor correction circuit | |
| CN205051415U (en) | Lithium battery charging circuit | |
| CN205212520U (en) | Active power filter energy storage circuit | |
| CN202435261U (en) | Passive power factor correction circuit | |
| CN208657137U (en) | A kind of compensated line reducing LED power harmonic current | |
| CN205725446U (en) | A kind of high efficiency single-phase APFC | |
| CN105896957A (en) | High-efficiency single-phase active power factor correction circuit | |
| CN203607825U (en) | Protection circuit, power board and television | |
| CN206149543U (en) | Single -stage high power factor's LED drive power supply | |
| CN204408395U (en) | A kind of circuit improving phone weighted noise performance | |
| CN201369680Y (en) | Efficient uninterrupted power supply circuit | |
| CN203278640U (en) | Sectional-type power factor correction circuit | |
| CN102522883A (en) | Passive power factor correction circuit | |
| CN204633602U (en) | A kind of alternating expression control switch power supply | |
| CN204316627U (en) | Anti-lightning strike signal divider circuit | |
| CN204231183U (en) | A kind of control power supply input isolation circuit used for electric vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20170704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |