CN202261008U - Circuit for improving overhigh impact current of power factor correction circuit - Google Patents
Circuit for improving overhigh impact current of power factor correction circuit Download PDFInfo
- Publication number
- CN202261008U CN202261008U CN2011204211747U CN201120421174U CN202261008U CN 202261008 U CN202261008 U CN 202261008U CN 2011204211747 U CN2011204211747 U CN 2011204211747U CN 201120421174 U CN201120421174 U CN 201120421174U CN 202261008 U CN202261008 U CN 202261008U
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- China
- Prior art keywords
- bypass diode
- diode
- circuit
- resistance
- joins
- 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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- 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
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Abstract
The utility model discloses a circuit for improving overhigh impact current of a power factor correction circuit, which comprises a bypass diode, a second bypass diode, a boost inductor, a fly-wheel diode, a field-effect tube and a field-effect tube driving circuit, wherein one end of the boost inductor is respectively connected with a positive pole of the bypass diode and a positive pole of the second bypass diode, and the other end of the boost inductor is respectively connected with a positive pole of the fly-wheel diode and a drain electrode of the field-effect tube; the bypass diode is connected with the second bypass diode in parallel; and a negative pole of the fly-wheel diode is respectively connected with a negative pole of the bypass diode and a negative pole of the second bypass diode. The circuit effectively solves the problem that the impact current of a bypass diode of the power factor correction circuit is overhigh, so that the impact current of the bypass diode is reduced, the service life of parts can be prolonged, the production cost is reduced, and the circuit is better in practicability.
Description
Technical field
The utility model relates to the impulse current processing technology field, concrete relates to a kind of too high circuit of circuit of power factor correction impulse current that improves.
Background technology
For avoiding impulse current excessive, cause the circuit of power factor correction boost inductance saturated, the general mode of connection that adopts like Fig. 1 of existing circuit of power factor correction bypass diode circuit.And when adopting this mode, behind the hot machine of input voltage 264Vac, when the switching on and shutting down repetitiousness switches; The impulse current of bypass diode D3 of flowing through can surpass component specification; Cause component wear easily, it is applied to the actual very big inconvenience that caused, also can cause the waste of extra loss and cost.
The utility model content
The purpose of the utility model is to solve the problem that exists in the prior art, and a kind of too high circuit of circuit of power factor correction bypass diode impulse current that improves is provided.
The utility model is achieved through following technical scheme:
A kind of too high circuit of circuit of power factor correction impulse current that improves comprises bypass diode, second bypass diode, boost inductance, fly-wheel diode, FET and FET drive circuit.
Wherein, an end of boost inductance joins with the positive pole of bypass diode and the positive pole of second bypass diode respectively, and the other end of boost inductance joins with the positive pole of fly-wheel diode and the drain electrode of FET respectively.
Simultaneously, the bypass diode and second bypass diode parallel connection.
In addition, the negative pole of fly-wheel diode joins with the negative pole of bypass diode and the negative pole of second bypass diode respectively.
The FET drive circuit comprises first resistance, second resistance, the 3rd resistance, diode and triode.
One end of first resistance joins with the positive pole of diode and the base stage of triode respectively.
In addition, an end of second resistance and the emitter of triode join, and the other end of second resistance joins with the negative pole of diode, the grid of FET and an end of the 3rd resistance respectively.
Simultaneously, the other end of the 3rd resistance joins with the collector electrode of triode and the source electrode of FET respectively.
The utility model usefulness is:
The utility model has effectively improved the too high problem of bypass diode impulse current of circuit of power factor correction, has reduced the impulse current of bypass diode, the life-span of having improved part, reduced production cost, and possess preferable practicality.
Description of drawings
To combine embodiment and accompanying drawing that the utility model is done further to describe in detail below:
Fig. 1 is the wiring construction sketch map of existing circuit;
Fig. 2 is the wiring construction sketch map of the utility model circuit.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 2 is the utility model
A kind of too high circuit of circuit of power factor correction impulse current that improves comprises bypass diode D3, the second bypass diode D4, boost inductance L1, sustained diode 2, FET Q1 and FET drive circuit.
Wherein, the end of boost inductance L1 joins with the positive pole of bypass diode D3 and the positive pole of the second bypass diode D4 respectively, and the other end of boost inductance L1 joins with the positive pole of sustained diode 2 and the drain electrode of FET Q1 respectively
Simultaneously, the bypass diode D3 and second bypass diode D4 parallel connection.
In addition, the negative pole of sustained diode 2 joins with the negative pole of bypass diode D3 and the negative pole of the second bypass diode D4 respectively.
The FET drive circuit comprises first resistance R 20, second resistance R 12, the 3rd resistance R 11, diode D10 and triode Q2.
Wherein, an end of first resistance R 20 joins with the positive pole of diode D10 and the base stage of triode Q2 respectively.
In addition, an end of second resistance R 12 and the emitter of triode Q2 join, and the other end of second resistance R 12 joins with the negative pole of diode D10, the grid of FET Q1 and an end of the 3rd resistance R 11 respectively.
Simultaneously, the other end of the 3rd resistance R 11 joins with the collector electrode of triode Q2 and the source electrode of FET Q1 respectively.
The utility model has reached the purpose that reduces the impulse current of bypass diode through another bypass diode of parallel connection on bypass diode.
Claims (2)
1. one kind is improved the too high circuit of circuit of power factor correction impulse current; It is characterized in that comprising bypass diode (D3), second bypass diode (D4), boost inductance (L1), fly-wheel diode (D2), FET (Q1) and FET drive circuit; Wherein: an end of boost inductance (L1) joins with the positive pole of bypass diode (D3) and the positive pole of second bypass diode (D4) respectively, and the other end of boost inductance (L1) joins with the positive pole of fly-wheel diode (D2) and the drain electrode of FET (Q1) respectively; Simultaneously, bypass diode (D3) and second bypass diode (D4) parallel connection; In addition, the negative pole of fly-wheel diode (D2) joins with the negative pole of bypass diode (D3) and the negative pole of second bypass diode (D4) respectively.
2. the too high circuit of circuit of power factor correction impulse current that improves according to claim 1 is characterized in that described FET drive circuit comprises first resistance (R20), second resistance (R12), the 3rd resistance (R11), diode (D10) and triode (Q2); Wherein, an end of first resistance (R20) joins with the positive pole of diode (D10) and the base stage of triode (Q2) respectively; In addition; The emitter of one end of second resistance (R12) and triode (Q2) joins; The other end of second resistance (R12) joins with the negative pole of diode (D10), the grid of FET (Q1) and an end of the 3rd resistance (R11) respectively; Simultaneously, the other end of the 3rd resistance (R11) joins with the collector electrode of triode (Q2) and the source electrode of FET (Q1) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204211747U CN202261008U (en) | 2011-10-28 | 2011-10-28 | Circuit for improving overhigh impact current of power factor correction circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204211747U CN202261008U (en) | 2011-10-28 | 2011-10-28 | Circuit for improving overhigh impact current of power factor correction circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202261008U true CN202261008U (en) | 2012-05-30 |
Family
ID=46122190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204211747U Expired - Fee Related CN202261008U (en) | 2011-10-28 | 2011-10-28 | Circuit for improving overhigh impact current of power factor correction circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202261008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270013A (en) * | 2014-09-30 | 2015-01-07 | 深圳市茂润电气有限公司 | Boost automatic matching circuit and power conversion device used for smart travel |
-
2011
- 2011-10-28 CN CN2011204211747U patent/CN202261008U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270013A (en) * | 2014-09-30 | 2015-01-07 | 深圳市茂润电气有限公司 | Boost automatic matching circuit and power conversion device used for smart travel |
| CN104270013B (en) * | 2014-09-30 | 2018-08-21 | 广东百事泰电子商务股份有限公司 | Boost automatic match circuit and intelligence travelling power supply change-over device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20171028 |