CN201341088Y - Power factor correction control circuit for inverter air conditioner - Google Patents
Power factor correction control circuit for inverter air conditioner Download PDFInfo
- Publication number
- CN201341088Y CN201341088Y CNU2008201557968U CN200820155796U CN201341088Y CN 201341088 Y CN201341088 Y CN 201341088Y CN U2008201557968 U CNU2008201557968 U CN U2008201557968U CN 200820155796 U CN200820155796 U CN 200820155796U CN 201341088 Y CN201341088 Y CN 201341088Y
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- CN
- China
- Prior art keywords
- power factor
- factor correction
- correction control
- control circuit
- testing circuit
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- 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
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- Air Conditioning Control Device (AREA)
- Rectifiers (AREA)
Abstract
The utility model discloses a power factor correction control circuit for an inverter air conditioner, comprising a central processing unit, and a drive circuit, a voltage zero crossing testing circuit, an AC input voltage testing circuit, an AC input current testing circuit, a DC output voltage testing circuit and a DC output current testing circuit which are connected with the central processing unit. The power factor correction control circuit is a partial chopping type power factor correction control circuit. By adopting the partial chopping type power factor correction control circuit, the utility model can effectively improve the power factor, reduce the requirement to components and parts, and reduce the consumption of the components and the parts.
Description
Technical field
The utility model relates to a kind of power factor correction control circuit, relates in particular to a kind of power factor correction control circuit that is used for convertible frequency air-conditioner.
Technical background
In recent years, along with development of electronic technology, various electronic equipments, issuable current harmonics of household electrical appliance and reactive power also more and more cause people's attention to the pollution of electrical network, the existence of harmonic wave, not only greatly reduce the power factor of input circuit, and can pollute the detonator circuit fault the public power system.In order to suppress mains by harmonics, reduce electric current and pollute, adopt the rectifier of Active Power Factor Correction (APFC) circuit to become the main stream approach that suppresses harmonic wave at present.Because the power factor correction controller that is applied in the convertible frequency air-conditioner need work long hours under high-power operating mode, and when power is big, tradition APFC power device will bear bigger current stress, thereby cause the parts selection difficulty, product cost is increased, and can influence the stability of system.
Summary of the invention
The purpose of this utility model is to provide a kind of power factor correction control circuit that is used for convertible frequency air-conditioner, by adopting part chopper-type power factor correction control circuit, can effectively improve power factor, reduces the requirement of components and parts and reduces the components and parts loss.
The technical scheme that realizes above-mentioned purpose is: a kind of power factor correction control circuit that is used for convertible frequency air-conditioner, wherein, it comprises a central processing unit, and the drive circuit, voltage over zero testing circuit, the AC-input voltage testing circuit that link to each other with this central processing unit, exchanging input current testing circuit, VD testing circuit and average anode current testing circuit, described power factor correction control circuit is a part chopper-type power factor correction control circuit.
The above-mentioned power factor correction control circuit that is used for convertible frequency air-conditioner, wherein, described central processing unit includes and interrupts the input port, and the output of described voltage over zero testing circuit links to each other with described interruption input port.
The above-mentioned power factor correction control circuit that is used for convertible frequency air-conditioner, wherein, described central processing unit includes the A/D thief hatch, and the output of described interchange input current testing circuit is connected with this A/D thief hatch.
The above-mentioned power factor correction control circuit that is used for convertible frequency air-conditioner, wherein, described AC-input voltage testing circuit is connected with described A/D thief hatch.
The beneficial effects of the utility model are: the utility model is by adopting part chopper-type power factor correction control circuit, be part copped wave in each voltage cycle, can effectively improve power factor, reduce the requirement of components and parts and reduce the components and parts loss, avoid the electric current peak.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
See also Fig. 1, there is shown a kind of power factor correction control circuit that is used for convertible frequency air-conditioner of the present utility model, it comprises a central processing unit 1, and the drive circuit 2, voltage over zero testing circuit 3, the AC-input voltage testing circuit 4 that link to each other with this central processing unit 1, exchanging input current testing circuit 5, VD testing circuit 6 and average anode current testing circuit 7, power factor correction control circuit of the present utility model is a part chopper-type power factor correction control circuit.
Central processing unit 1 includes and interrupts the input port (not shown), and the output of voltage over zero testing circuit 3 links to each other with this interruption input port; Central processing unit 1 includes A/D thief hatch (not shown), and AC-input voltage testing circuit 4 is connected with this A/D thief hatch with the output that exchanges input current testing circuit 5.
Though through the utility model is described in conjunction with specific embodiments, for the skilled personage in present technique field, according to substituting of making of narration above, revise with variation will be conspicuous.Therefore, such substituting, in the spirit and scope that modifications and variations fall into attached claim the time, should be included in the utility model.
Claims (4)
1. power factor correction control circuit that is used for convertible frequency air-conditioner, it is characterized in that, it comprises a central processing unit, and the drive circuit, voltage over zero testing circuit, the AC-input voltage testing circuit that link to each other with this central processing unit, exchanging input current testing circuit, VD testing circuit and average anode current testing circuit, described power factor correction control circuit is a part chopper-type power factor correction control circuit.
2. the power factor correction control circuit that is used for convertible frequency air-conditioner according to claim 1 is characterized in that, described central processing unit includes and interrupts the input port, and the output of described voltage over zero testing circuit links to each other with described interruption input port.
3. the power factor correction control circuit that is used for convertible frequency air-conditioner according to claim 1 is characterized in that described central processing unit includes the A/D thief hatch, and the output of described interchange input current testing circuit is connected with this A/D thief hatch.
4. according to claim 1 or the 3 described power factor correction control circuits that are used for convertible frequency air-conditioner, it is characterized in that described AC-input voltage testing circuit is connected with described A/D thief hatch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201557968U CN201341088Y (en) | 2008-11-21 | 2008-11-21 | Power factor correction control circuit for inverter air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201557968U CN201341088Y (en) | 2008-11-21 | 2008-11-21 | Power factor correction control circuit for inverter air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201341088Y true CN201341088Y (en) | 2009-11-04 |
Family
ID=41236632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201557968U Expired - Fee Related CN201341088Y (en) | 2008-11-21 | 2008-11-21 | Power factor correction control circuit for inverter air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201341088Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998518A (en) * | 2012-11-26 | 2013-03-27 | 昆山北极光电子科技有限公司 | Automatic measurement method of active current |
-
2008
- 2008-11-21 CN CNU2008201557968U patent/CN201341088Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998518A (en) * | 2012-11-26 | 2013-03-27 | 昆山北极光电子科技有限公司 | Automatic measurement method of active current |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20101121 |