CN204290703U - With the booster circuit of power factor correction - Google Patents
With the booster circuit of power factor correction Download PDFInfo
- Publication number
- CN204290703U CN204290703U CN201420784812.5U CN201420784812U CN204290703U CN 204290703 U CN204290703 U CN 204290703U CN 201420784812 U CN201420784812 U CN 201420784812U CN 204290703 U CN204290703 U CN 204290703U
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- module
- input
- power factor
- rectification
- booster circuit
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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 provides a kind of booster circuit with power factor correction, comprises boosting energy storage inductor, rectification module, switch module, storage capacitor, diode, on-off controller, current sample module and voltage sample module; Two inputs of described rectification module connect input AC electricity live wire, zero line respectively, rectification module is serially connected with energy storage inductor in connection input AC electricity live wire end, two outputs of rectification module are serially connected with one group of diode respectively successively and storage capacitor forms output, and described storage capacitor is also connected with input AC electrical zero line; Switch module and the current sample module of serial connection is parallel with between two outputs of described rectification module; Described voltage sample module input connects output, and voltage sample module and current sample module are connected with on-off controller; Described on-off controller is connected with switch module.This circuit is simple and can reach and reduce current harmonics and distortion in load thus the object improving power factor.
Description
Technical field
The utility model relates to a kind of power circuit, refers in particular to a kind of booster circuit with power factor correction.
Background technology
In the line formula UPS of power frequency/high frequency, commonly use rectified current, it generally all adopts single-phase or three phase rectifier technology formation, but the bad factors such as this also can bring, and the input power factor of UPS is low, the input current distortion factor high (THDI), Harmonics of Input content are high, and then formation exists to other power consumption equipment with to multiple harm such as electrical network interference are large.Though by adding filter at UPS input or reactor improves significantly, after improving, input power factor is generally also less than 0.8.And according to 6 pulse/12 pulse phase shifting commutation techniques, also there is the unfavorable factor that cost is too high.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of band that improves to carry power factor (PF) and the booster circuit simultaneously possessing the band power factor correction of boosting.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of booster circuit with power factor correction, comprises boosting energy storage inductor, rectification module, switch module, storage capacitor, diode, on-off controller, current sample module and voltage sample module; Two inputs of described rectification module connect input AC electricity live wire, zero line respectively, rectification module is serially connected with energy storage inductor in connection input AC electricity live wire end, two outputs of rectification module are serially connected with one group of diode respectively successively and storage capacitor forms+BUS ,-BUS output, and described storage capacitor is also connected with input AC electrical zero line; Switch module and the current sample module of serial connection is parallel with between two outputs of described rectification module; Described voltage sample module input connects+BUS ,-BUS and exports, and voltage sample module and current sample module are connected with on-off controller; Described on-off controller is connected with switch module;
In said structure, also comprise EMI module and handover module; Input AC electricity live wire, zero line are connected rectification module by EMI module with after handover module;
In said structure, also comprise protection module; Described protection module is established and is serially connected with between input AC electricity live wire and rectification module;
In said structure, described rectification module comprises the full bridge rectifier be made up of four diodes;
In said structure, described storage capacitor comprises electrochemical capacitor;
In said structure, described current sample module comprises electric current loop; Described switch module comprises IGBT; Described electric current loop is parallel to after connecting with IGBT between two outputs of rectification module.
The beneficial effects of the utility model are: by arranging boosting energy storage inductor and storage capacitor, under the switching of switch module interval make boosting energy storage inductor and storage capacitor by input charging or to load discharge, by boosting energy storage inductor and the device property of storage capacitor own thus play external output power factor adjustment and boosting.Circuit is simple and can reach and reduce current harmonics and distortion in load thus the object improving power factor.
Accompanying drawing explanation
Below in conjunction with accompanying drawing in detail concrete structure of the present utility model is described in detail
Fig. 1 is schematic block circuit diagram of the present utility model;
Fig. 2 is concrete exemplifying embodiment circuit diagram of the present utility model;
Fig. 3 is operation principle schematic diagram 1 of the present utility model;
Fig. 4 is operation principle schematic diagram 2 of the present utility model;
Fig. 5 is operation principle schematic diagram 3 of the present utility model;
Fig. 6 is operation principle schematic diagram 4 of the present utility model.
Embodiment
By describing technology contents of the present utility model, structural feature in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with execution mode.
Refer to Fig. 1, a kind of booster circuit with power factor correction, comprise boosting energy storage inductor, rectification module, switch module, storage capacitor, diode, on-off controller, current sample module and voltage sample module; Two inputs of described rectification module connect input AC electricity live wire, zero line respectively, rectification module is serially connected with energy storage inductor in connection input AC electricity live wire end, two outputs of rectification module are serially connected with one group of diode respectively successively and storage capacitor forms+BUS ,-BUS output, and described storage capacitor is also connected with input AC electrical zero line; Switch module and the current sample module of serial connection is parallel with between two outputs of described rectification module; Described voltage sample module input connects+BUS ,-BUS and exports, and voltage sample module and current sample module are connected with on-off controller; Described on-off controller is connected with switch module.
From foregoing description, the beneficial effects of the utility model are: by arranging boosting energy storage inductor and storage capacitor, under the switching of switch module interval make boosting energy storage inductor and storage capacitor by input charging or to load discharge, by boosting energy storage inductor and the device property of storage capacitor own thus play external output power factor adjustment and boosting.Circuit is simple and can reach and reduce current harmonics and distortion in load thus the object improving power factor.
Embodiment 1:
In said structure, also comprise EMI module and handover module; Input AC electricity live wire, zero line are connected rectification module by EMI module with after handover module.Arranging EMI module can the anti-electromagnetic interference capability of intensifier circuit.Handover module then can carry out the switching of break-make to integrated circuit.
Embodiment 2:
In said structure, also comprise protection module; Described protection module is established and is serially connected with between input AC electricity live wire and rectification module.Protection module can select Fuse Type fuse usually, thus protective circuit crosses flow problem.
Embodiment 3:
The rectification module of this circuit can adopt half-bridge or full-bridge rectification.Best, in said structure, described rectification module comprises the full bridge rectifier be made up of four diodes.Though adopt the full bridge rectifier of diode can not adjust triggering initial angle, cost is more cheap and can adapt to this circuit application requirements.And the positive half that full bridge rectifier can all utilize the output of input AC electricity to obtain sine wave is divided, possesses the advantage that the utilization ratio of input sine wave is doubled than halfwave rectifier.
Embodiment 4:
In said structure, described storage capacitor comprises electrochemical capacitor.
Embodiment 5:
In said structure, described current sample module comprises electric current loop; Described switch module comprises IGBT; Described electric current loop is parallel to after connecting with IGBT between two outputs of rectification module.
Shown in Figure 2 is the circuit diagram of concrete exemplifying embodiment, and during its work, principle is as follows:
1) when the waveform of interchange input sine wave is in the positive axis of input waveform.And the IGBT of switch module on-off controller control under conducting time, Fig. 3 is seen in the loop of electric current.Now PFC inductance (boosting energy storage inductor) has electric current to flow through, and starts storage power, and on PFC inductance, the polarity of voltage left side is higher than the right (left positive right negative).The energy of external load is exported the electrochemical capacitor connect by+BUS provide energy.When the IGBT of switch module turns off under on-off controller controls, Fig. 4 is seen in the loop of electric current.The PFC inductive drop pole reversal, the polarity of PFC inductance be the right higher than the left side (the left negative right side just) now the inductive drop voltage part after input rectifying that is added to provide electric energy to the+BUS for load, another part gives the charging of+BUS electrochemical capacitor, for when next switching tube turns off for load provides energy and store required energy.
2) when the waveform of interchange input sine wave is in the negative semiaxis of input waveform.And the IGBT of switch module on-off controller control under conducting time, Fig. 5 is seen in the loop of electric current.Now PFC inductance has electric current to flow through, and starts storage power, higher than the left side (the left negative right side just) on the right of inductive drop polarity.The energy of load provides energy by-BUS electrochemical capacitor.When the IGBT of switch module turns off under on-off controller controls, Fig. 6 is seen in the loop of electric current.The PFC inductive drop pole reversal, the polarity of inductance be the left side higher than the right (left positive right negative) now the inductive drop voltage part after input rectifying that is added to provide electric energy to the-BUS for load, another part gives the charging of-BUS electrochemical capacitor, for when next switching tube turns off for load provides energy and store required energy.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (6)
1. the booster circuit with power factor correction, is characterized in that: comprise boosting energy storage inductor, rectification module, switch module, storage capacitor, diode, on-off controller, current sample module and voltage sample module; Two inputs of described rectification module connect input AC electricity live wire, zero line respectively, rectification module is serially connected with energy storage inductor in connection input AC electricity live wire end, two outputs of rectification module are serially connected with one group of diode respectively successively and storage capacitor forms+BUS ,-BUS output, and described storage capacitor is also connected with input AC electrical zero line; Switch module and the current sample module of serial connection is parallel with between two outputs of described rectification module; Described voltage sample module input connects+BUS ,-BUS and exports, and voltage sample module and current sample module are connected with on-off controller; Described on-off controller is connected with switch module.
2. the booster circuit of band as claimed in claim 1 power factor correction, is characterized in that: also comprise EMI module and handover module; Input AC electricity live wire, zero line are connected rectification module by EMI module with after handover module.
3. the booster circuit of band as claimed in claim 1 power factor correction, is characterized in that: also comprise protection module; Described protection module is established and is serially connected with between input AC electricity live wire and rectification module.
4. the booster circuit of band as claimed in claim 1 power factor correction, is characterized in that: described rectification module comprises the full bridge rectifier be made up of four diodes.
5. the booster circuit of band as claimed in claim 1 power factor correction, is characterized in that: described storage capacitor comprises electrochemical capacitor.
6. the booster circuit of band as claimed in claim 1 power factor correction, is characterized in that: described current sample module comprises electric current loop; Described switch module comprises IGBT; Described electric current loop is parallel to after connecting with IGBT between two outputs of rectification module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420784812.5U CN204290703U (en) | 2014-12-11 | 2014-12-11 | With the booster circuit of power factor correction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420784812.5U CN204290703U (en) | 2014-12-11 | 2014-12-11 | With the booster circuit of power factor correction |
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| Publication Number | Publication Date |
|---|---|
| CN204290703U true CN204290703U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420784812.5U Expired - Fee Related CN204290703U (en) | 2014-12-11 | 2014-12-11 | With the booster circuit of power factor correction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020182083A1 (en) * | 2019-03-11 | 2020-09-17 | 比亚迪股份有限公司 | Photovoltaic power supply system, inverter, and inverter device and control method therefor |
-
2014
- 2014-12-11 CN CN201420784812.5U patent/CN204290703U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020182083A1 (en) * | 2019-03-11 | 2020-09-17 | 比亚迪股份有限公司 | Photovoltaic power supply system, inverter, and inverter device and control method therefor |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20211211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |