CN102130576A - Bridgeless power factor correction circuit with low voltage stress for wide voltage output - Google Patents
Bridgeless power factor correction circuit with low voltage stress for wide voltage output Download PDFInfo
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- CN102130576A CN102130576A CN2010106071873A CN201010607187A CN102130576A CN 102130576 A CN102130576 A CN 102130576A CN 2010106071873 A CN2010106071873 A CN 2010106071873A CN 201010607187 A CN201010607187 A CN 201010607187A CN 102130576 A CN102130576 A CN 102130576A
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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
The invention relates to a bridgeless boost PFC (Power Factor Correction) circuit with low voltage stress, which is characterized in that one end of an AC (Alternating Current) input power supply Vin is connected with a common end for an emitter of a switching tube S1 and a collector of a switching tube S2, and a source electrode of a switching tube S5, a drain electrode of S5 is connected with a drain electrode of a switching tube S6, the other end of the power supply is connected with a common end for an emitter of a switching tube S3 and a collector of a switching tube S4, and one end of an inductance L1, the other end of L1 is connected with a common end for an anode of a diode D1 and a cathode of a diode D2, and a source electrode of the switching tube S6, collectors of the switching tubes S1 and S3 and a cathode of D1 are jointly connected with an anode of a capacitor C1, emitters of the switching tubes S2 and S4 and an anode of D2 are jointly connected with a cathode of C1, equivalent load resistors are connected on two ends of C1 in parallel, the grids and the emitters of S1, S2, S3 and S4 and the grids and the emitters of S5 and S6 are connected with respective control drive signals, and Vin, S1, S2, S5, S6, D1, D2, L1, C1 and R1 form a bridgeless BOOST circuit; and Vin, S1, S2, S3, S4, D1, D2, L1, C1 and R1 form a bridgeless BUCK circuit. The bridgeless boost PFC circuit is integrated with input rectification and power factor correction converter circuits, and can realize the boostable wide voltage output.
Description
Technical field
But the wide output voltage that the present invention relates to a kind of yet step-down of boosting of low voltage stress does not have the bridge power factor correction circuit.
Background technology
The output voltage of existing non-bridge PFC circuits is realized boosting and can not step-down substantially only, therefore the application scenario that can't satisfy wide output voltage.Though there is the people to propose non-bridge PFC circuits such as CUK that liftable is pressed in recent years, circuit such as SEPIC, this switch tube voltage stress is input voltage and output voltage sum, and switch tube voltage stress is bigger, and circuit cost is higher.Simultaneously because the problem of circuit structure is used problems such as also needing to solve components and parts in large-power occasions.
Summary of the invention
Deficiency in view of above-mentioned technology, the present invention proposes a kind of no bridge buck pfc circuit of low voltage stress, this circuit arrangement has omitted the input rectifying bridge, reduced conduction loss, can realize that output voltage can rise the wide output voltage that can fall, and the voltage stress of reduction switching tube, reduce switching loss and device service rating, thereby improve the conversion efficiency of High Power Factor rectifier converter.
The present invention adopts following scheme to realize: a kind of no bridge buck pfc circuit of low voltage stress, comprise and exchange input source Vin, power switch tube S 1, power switch tube S 2, power switch tube S 3, power switch tube S 4, power switch tube S 5, power switch tube S 6, diode D1, diode D2, inductance L 1, storage capacitor C1 and equivalent load resistance, it is characterized in that: the common port of the emitter of described AC power Vin one termination S1 and the collector electrode of S2, connect the source electrode of S5 simultaneously, the drain electrode of S5 connects the drain electrode of S6, one end of the emitter of another termination power switch tube S 3 of power supply and the common port of S4 collector electrode and inductance L 1, another terminating diode D1 anode of L1 and the common port of D2 negative electrode and the source electrode of S6, S1, the collector electrode of S3 and the negative electrode of D1 connect the positive pole of storage capacitor C1 jointly, S2, the anode of S4 emitter and D2 connects the negative pole of storage capacitor C1 jointly, and equivalent load R1 is connected in parallel on C1 two ends, S1, S2, S3, the grid emitter-base bandgap grading of S4, S5, the grid source electrode of S6 connects controlling and driving signal separately, above-mentioned interchange input source Vin, power switch tube S 1, power switch tube S 2, power switch tube S 5, power switch tube S 6, diode D1, diode D2, inductance L 1, storage capacitor C1 and equivalent load resistance have constituted no bridge BOOST circuit; Exchange input source Vin, power switch tube S 1, power switch tube S 2, power switch tube S 3, power switch tube S 4, diode D1, diode D2, inductance L 1, storage capacitor C1 and equivalent load resistance have constituted no bridge BUCK circuit.
In the no bridge buck pfc circuit of a kind of low voltage stress of the present invention, six power switch pipe high-frequency works, by selecting the break-make of these six power switch pipes, when input voltage is lower than output voltage, circuit equivalent is no bridge BOOST circuit, when input voltage was higher than output voltage, circuit equivalent was no bridge BUCK circuit.
Below be nine kinds of mode of operations of circuit:
First kind of mode of operation of circuit: input voltage is less than output voltage, and circuit equivalent is no bridge BOOST circuit.It is positive right negative to exchange an input source Vin left side, power switch tube S 5 and power switch tube S 6 conductings, and all the other power switch pipes and diode turn-off.Exchange input source Vin and give inductance L 1 charging by power switch tube S 5 and power switch tube S 6, storage capacitor C1 provide energy to equivalent load resistance.
Second kind of mode of operation of circuit: input voltage is less than output voltage, and circuit equivalent is no bridge BOOST circuit.It is positive right negative to exchange an input source Vin left side, power switch tube S 1 and diode D2 conducting, and all the other power switch pipes and diode turn-off.Energy stored passes to storage capacitor C1 and equivalent load resistance by power switch tube S 1 and diode D2 on interchange input source Vin and the inductance L 1.
The third mode of operation of circuit: input voltage is less than output voltage, and circuit equivalent is no bridge BOOST circuit.Just exchange the negative right side, an input source Vin left side, power switch tube S 5 and power switch tube S 6 conductings, all the other power switch pipes and diode turn-off.Exchange input source Vin and give inductance L 1 charging by power switch tube S 5 and power switch tube S 6, storage capacitor C1 provide energy to equivalent load resistance.
The 4th kind of mode of operation of circuit: input voltage is less than output voltage, and circuit equivalent is no bridge BOOST circuit.Just exchange the negative right side, an input source Vin left side, power switch tube S 2 and diode D1 conducting, all the other power switch pipes and diode turn-off.Energy stored passes to storage capacitor C1 and equivalent load resistance by power switch tube S 2 and diode D1 on interchange input source Vin and the inductance L 1.
The 5th kind of mode of operation of circuit: input voltage is greater than output voltage, and circuit equivalent is no bridge BUCK circuit.It is positive right negative to exchange an input source Vin left side, power switch tube S 1 and diode D2 conducting, and all the other power switch pipes and diode turn-off.Exchange input source Vin and give inductance L 1 charging, and give storage capacitor C1 and equivalent load resistance energy delivery by power switch tube S 1 and diode D2.
The 6th kind of mode of operation of circuit: input voltage is greater than output voltage, and circuit equivalent is no bridge BUCK circuit.It is positive right negative to exchange an input source Vin left side, power switch tube S 3 and diode D2 conducting, and all the other power switch pipes and diode turn-off.The energy that is stored on the inductance L 1 passes to storage capacitor C1 and equivalent load resistance by power switch tube S 3 and diode D2.
The 7th kind of mode of operation of circuit: input voltage is greater than output voltage, and circuit equivalent is no bridge BUCK circuit.Just exchange the negative right side, an input source Vin left side, power switch tube S 2 and diode D1 conducting, all the other power switch pipes and diode turn-off.Exchange input source Vin and give inductance L 1 charging, and give storage capacitor C1 and equivalent load resistance energy delivery by power switch tube S 2 and diode D1.
The 8th kind of mode of operation of circuit: input voltage is greater than output voltage, and circuit equivalent is no bridge BUCK circuit.Just exchange the negative right side, an input source Vin left side, power switch tube S 4 and diode D1 conducting, all the other power switch pipes and diode turn-off.The energy that is stored on the inductance L 1 passes to storage capacitor C1 and equivalent load resistance by power switch tube S 4 and diode D1.
The 9th kind of mode of operation of circuit: input voltage is less than output voltage or greater than output voltage, just exchanging the positive right negative or negative right side, a left side, an input source Vin left side, and all power switch pipes and diode all turn-off.Inductance L 1 energy stored discharges fully, the discontinuous current of inductance L 1, and storage capacitor C1 provide energy to equivalent load resistance.
Major advantage of the present invention is:
1, omits the input rectifying bridge, reduced conduction loss.
2,, realized that output voltage can also can be less than the function of input voltage greater than input voltage by selecting power switch pipe to make circuit working at no bridge BOOST circuit or be operated in no bridge BUCK circuit.
3, the voltage stress of power switch pipe is less, can reduce switching loss and device service rating, has saved cost.
Description of drawings
Fig. 1 is a specific implementation circuit diagram of the present invention.
Fig. 2 is first kind of working mode figure of the present invention.
Fig. 3 is second kind of working mode figure of the present invention.
Fig. 4 is the third working mode figure of the present invention.
Fig. 5 is the 4th a kind of working mode figure of the present invention.
Fig. 6 is the 5th a kind of working mode figure of the present invention.
Fig. 7 is the 6th a kind of working mode figure of the present invention.
Fig. 8 is the 7th a kind of working mode figure of the present invention.
Fig. 9 is the 8th a kind of working mode figure of the present invention.
Figure 10 is the 9th a kind of working mode figure of the present invention.
Embodiment
With reference to accompanying drawing 1, the no bridge buck pfc circuit of a kind of low voltage stress that the present invention proposes comprises exchanging input source Vin, power switch tube S 1, power switch tube S 2, power switch tube S 3, power switch tube S 4, power switch tube S 5, power switch tube S 6, diode D1, diode D2, inductance L 1, storage capacitor C1 and equivalent load resistance.It is characterized in that: the common port of the emitter of described AC power Vin one termination S1 and the collector electrode of S2, connect the source electrode of S5 simultaneously, the drain electrode of S5 connects the drain electrode of S6, one end of the emitter of another termination power switch tube S 3 of power supply and the common port of S4 collector electrode and inductance L 1, another terminating diode D1 anode of L1 and the common port of D2 negative electrode and the source electrode of S6, S1, the collector electrode of S3 and the negative electrode of D1 connect the positive pole of storage capacitor C1 jointly, S2, the anode of S4 emitter and D2 connects the negative pole of storage capacitor C1 jointly, equivalent load resistance is connected in parallel on the C1 two ends, S1, S2, S3, the grid emitter-base bandgap grading of S4, S5, the grid source electrode of S6 connects controlling and driving signal separately.
Interchange input source Vin among Fig. 1, power switch tube S 1, power switch tube S 2, power switch tube S 5, power switch tube S 6, diode D1, diode D2, inductance L 1, storage capacitor C1 and equivalent load resistance have constituted no bridge BOOST circuit; Exchange input source Vin, power switch tube S 1, power switch tube S 2, power switch tube S 3, power switch tube S 4, diode D1, diode D2, inductance L 1, storage capacitor C1 and equivalent load resistance have constituted no bridge BUCK circuit.Six power switch pipe high-frequency works, by selecting the break-make of these six power switch pipes, when input voltage is lower than output voltage, the no bridge buck pfc circuit equivalence of a kind of low voltage stress that the present invention proposes is no bridge BOOST circuit, when input voltage was higher than output voltage, the no bridge buck pfc circuit equivalence of a kind of low voltage stress that the present invention proposes was no bridge BUCK circuit.Nine kinds of mode of operations of the no bridge buck pfc circuit of a kind of low voltage stress that the present invention proposes such as accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, accompanying drawing 6, accompanying drawing 7, accompanying drawing 8 is shown in accompanying drawing 9 and the accompanying drawing 10.Solid line partly is the circuit loop of real work in each pattern among the figure, and dotted portion is for having neither part nor lot in the circuit part of work in each pattern.
With reference to accompanying drawing 2, first kind of working mode figure of the no bridge buck pfc circuit of a kind of low voltage stress that proposes among the present invention.Under this mode of operation, input voltage is less than output voltage, and circuit equivalent is no bridge BOOST circuit.It is positive right negative to exchange an input source Vin left side, power switch tube S 5 and power switch tube S 6 conductings, and all the other power switch pipes and diode turn-off.Exchange input source Vin and give inductance L 1 charging by power switch tube S 5 and power switch tube S 6, storage capacitor C1 provide energy to equivalent load resistance, promptly do not have bridge BOOST circuit inductance L1 charged state.
With reference to accompanying drawing 3, second kind of working mode figure of the no bridge buck pfc circuit of a kind of low voltage stress that proposes among the present invention.Under this mode of operation, input voltage is less than output voltage, and circuit equivalent is no bridge BOOST circuit.It is positive right negative to exchange an input source Vin left side, power switch tube S 1 and diode D2 conducting, and all the other power switch pipes and diode turn-off.Energy stored passes to storage capacitor C1 and equivalent load R1 by power switch tube S 1 and diode D2 on interchange input source Vin and the inductance L 1, does not promptly have the electric current afterflow state of bridge BOOST circuit inductance L1.
With reference to accompanying drawing 4, the third working mode figure of the no bridge buck pfc circuit of a kind of low voltage stress that proposes among the present invention.Under this mode of operation, input voltage is less than output voltage, and circuit equivalent is no bridge BOOST circuit.Just exchange the negative right side, an input source Vin left side, power switch tube S 5 and power switch tube S 6 conductings, all the other power switch pipes and diode turn-off.Exchange input source Vin and give inductance L 1 charging by power switch tube S 5 and power switch tube S 6, storage capacitor C1 provide energy to equivalent load resistance, promptly do not have bridge BOOST circuit inductance L1 charged state.
With reference to accompanying drawing 5, the 4th kind of working mode figure of the no bridge buck pfc circuit of a kind of low voltage stress that proposes among the present invention.Under this mode of operation, input voltage is less than output voltage, and circuit equivalent is no bridge BOOST circuit.Just exchange the negative right side, an input source Vin left side, power switch tube S 2 and diode D1 conducting, all the other power switch pipes and diode turn-off.Energy stored passes to storage capacitor C1 and equivalent load resistance by power switch tube S 2 and diode D1 on interchange input source Vin and the inductance L 1, does not promptly have the electric current afterflow state of bridge BOOST circuit inductance L1.
With reference to accompanying drawing 6, the 5th kind of working mode figure of the no bridge buck pfc circuit of a kind of low voltage stress that proposes among the present invention.Under this mode of operation, input voltage is greater than output voltage, and circuit equivalent is no bridge BUCK circuit.It is positive right negative to exchange an input source Vin left side, power switch tube S 1 and diode D2 conducting, and all the other power switch pipes and diode turn-off.Exchange input source Vin and give inductance L 1 charging, and give storage capacitor C1 and equivalent load resistance, promptly do not have bridge BUCK circuit inductance L1 charged state energy delivery by power switch tube S 1 and diode D2.
With reference to accompanying drawing 7, the 6th kind of working mode figure of the no bridge buck pfc circuit of a kind of low voltage stress that proposes among the present invention.Under this mode of operation, input voltage is greater than output voltage, and circuit equivalent is no bridge BUCK circuit.It is positive right negative to exchange an input source Vin left side, power switch tube S 3 and diode D2 conducting, and all the other power switch pipes and diode turn-off.The energy that is stored on the inductance L 1 passes to storage capacitor C1 and equivalent load resistance by power switch tube S 3 and diode D2, does not promptly have the electric current afterflow state of bridge BUCK circuit inductance L1.
With reference to accompanying drawing 8, the 7th kind of working mode figure of the no bridge buck pfc circuit of a kind of low voltage stress that proposes among the present invention.Under this mode of operation, input voltage is greater than output voltage, and circuit equivalent is no bridge BUCK circuit.Just exchange the negative right side, an input source Vin left side, power switch tube S 2 and diode D1 conducting, all the other power switch pipes and diode turn-off.Exchange input source Vin and give inductance L 1 charging, and give storage capacitor C1 and equivalent load resistance, promptly do not have bridge BUCK circuit inductance L1 charged state energy delivery by power switch tube S 2 and diode D1.
With reference to accompanying drawing 9, the 8th kind of working mode figure of the no bridge buck pfc circuit of a kind of low voltage stress that proposes among the present invention.Under this mode of operation, input voltage is greater than output voltage, and circuit equivalent is no bridge BUCK circuit.Just exchange the negative right side, an input source Vin left side, power switch tube S 4 and diode D1 conducting, all the other power switch pipes and diode turn-off.The energy that is stored on the inductance L 1 passes to storage capacitor C1 and equivalent load resistance by power switch tube S 4 and diode D1, does not promptly have the electric current afterflow state of bridge BUCK circuit inductance L1.
With reference to accompanying drawing 10, the 9th kind of working mode figure of the no bridge buck pfc circuit of a kind of low voltage stress that proposes among the present invention.Under this mode of operation, input voltage can also can exchange input source Vin and can positive right the bearing in a left side just also can exchange the negative right side, an input source Vin left side greater than output voltage less than output voltage, and all power switch pipes and diode all turn-off.Energy stored discharges fully on the inductance L 1, and the discontinuous current on the inductance L 1, storage capacitor C1 provide energy for equivalent load R1, promptly do not have bridge BOOST circuit or do not have bridge BUCK circuit inductance L1 discontinuous current state.
More than be preferred embodiment of the present invention, all changes of doing according to technical solution of the present invention when the function that is produced does not exceed the scope of technical solution of the present invention, all belong to protection scope of the present invention.
List of references
1、?Prasad?N.?En?'eti,?etal,?A?HIGH?PERFORMANCE?SINGLE?PHASE?AC?TO?DC?RECTIFIER?WITH?INPUT?POWER?FACTOR?CORRECTION,?IEEE?PESC?1993,?pp.190-195
2、?Ahmad?J.?Sabzali，etal,?A?New?Bridgeless?PFC?Sepic?and?Cuk?Rectifiers?with?Low?Conduction?and?Switching?Losses,?IEEE?PEDS2009,?pp.550-556
3、Laszlo?Huber,Etal，?Performance?Evaluation?of?Bridgeless?PFC?Boost?Rectifiers，?IEEE?APEC2007?pp.165-171。
Claims (11)
1. the no bridge buck pfc circuit of a low voltage stress, comprise and exchange input source Vin, power switch tube S 1, power switch tube S 2, power switch tube S 3, power switch tube S 4, power switch tube S 5, power switch tube S 6, diode D1, diode D2, inductance L 1, storage capacitor C1 and equivalent load resistance, it is characterized in that: the common port of the emitter of described AC power Vin one termination S1 and the collector electrode of S2, connect the source electrode of S5 simultaneously, the drain electrode of S5 connects the drain electrode of S6, one end of the emitter of another termination power switch tube S 3 of power supply and the common port of S4 collector electrode and inductance L 1, another terminating diode D1 anode of L1 and the common port of D2 negative electrode and the source electrode of S6, S1, the collector electrode of S3 and the negative electrode of D1 connect the positive pole of storage capacitor C1 jointly, S2, the anode of S4 emitter and D2 connects the negative pole of storage capacitor C1 jointly, and equivalent load resistance is connected in parallel on C1 two ends, S1, S2, S3, the grid emitter-base bandgap grading of S4, S5, the grid source electrode of S6 connects controlling and driving signal separately, above-mentioned interchange input source Vin, power switch tube S 1, power switch tube S 2, power switch tube S 5, power switch tube S 6, diode D1, diode D2, inductance L 1, storage capacitor C1 and equivalent load R1 have constituted no bridge BOOST circuit; Exchange input source Vin, power switch tube S 1, power switch tube S 2, power switch tube S 3, power switch tube S 4, diode D1, diode D2, inductance L 1, storage capacitor C1 and equivalent load resistance have constituted no bridge BUCK circuit.
2. the no bridge buck pfc circuit of a kind of low voltage stress according to claim 1, it is characterized in that: six power switch pipe high-frequency works, by selecting the break-make of these six power switch pipes, when input voltage is lower than output voltage, circuit equivalent is no bridge BOOST circuit, when input voltage was higher than output voltage, circuit equivalent was no bridge BUCK circuit.
3. the no bridge buck pfc circuit of a kind of low voltage stress as claimed in claim 2, it is characterized in that first kind of mode of operation of circuit: input voltage is less than output voltage, and circuit equivalent is no bridge BOOST circuit; It is positive right negative to exchange an input source Vin left side, power switch tube S 5 and power switch tube S 6 conductings, and all the other power switch pipes and diode turn-off; Exchange input source Vin and give inductance L 1 charging by power switch tube S 5 and power switch tube S 6, storage capacitor C1 provide energy to equivalent load resistance.
4. the no bridge buck pfc circuit of a kind of low voltage stress as claimed in claim 2, it is characterized in that second kind of mode of operation of circuit: input voltage is less than output voltage, and circuit equivalent is no bridge BOOST circuit; It is positive right negative to exchange an input source Vin left side, power switch tube S 1 and diode D2 conducting, and all the other power switch pipes and diode turn-off; Energy stored passes to storage capacitor C1 and equivalent load resistance by power switch tube S 1 and diode D2 on interchange input source Vin and the inductance L 1.
5. the no bridge buck pfc circuit of a kind of low voltage stress as claimed in claim 2, it is characterized in that the third mode of operation of circuit: input voltage is less than output voltage, and circuit equivalent is no bridge BOOST circuit; Just exchange the negative right side, an input source Vin left side, power switch tube S 5 and power switch tube S 6 conductings, all the other power switch pipes and diode turn-off; Exchange input source Vin and give inductance L 1 charging by power switch tube S 5 and power switch tube S 6, storage capacitor C1 provide energy to equivalent load resistance.
6. the no bridge buck pfc circuit of a kind of low voltage stress as claimed in claim 2, it is characterized in that the 4th kind of mode of operation of circuit: input voltage is less than output voltage, and circuit equivalent is no bridge BOOST circuit; Just exchange the negative right side, an input source Vin left side, power switch tube S 2 and diode D1 conducting, all the other power switch pipes and diode turn-off; Energy stored passes to storage capacitor C1 and equivalent load resistance by power switch tube S 2 and diode D1 on interchange input source Vin and the inductance L 1.
7. the no bridge buck pfc circuit of a kind of low voltage stress as claimed in claim 2, it is characterized in that the 5th kind of mode of operation of circuit: input voltage is greater than output voltage, and circuit equivalent is no bridge BUCK circuit; It is positive right negative to exchange an input source Vin left side, power switch tube S 1 and diode D2 conducting, and all the other power switch pipes and diode turn-off; Exchange input source Vin and give inductance L 1 charging, and give storage capacitor C1 and equivalent load resistance energy delivery by power switch tube S 1 and diode D2.
8. the no bridge buck pfc circuit of a kind of low voltage stress as claimed in claim 2, it is characterized in that the 6th kind of mode of operation of circuit: input voltage is greater than output voltage, and circuit equivalent is no bridge BUCK circuit; It is positive right negative to exchange an input source Vin left side, power switch tube S 3 and diode D2 conducting, and all the other power switch pipes and diode turn-off; The energy that is stored on the inductance L 1 passes to storage capacitor C1 and equivalent load resistance by power switch tube S 3 and diode D2.
9. the no bridge buck pfc circuit of a kind of low voltage stress as claimed in claim 2, it is characterized in that the 7th kind of mode of operation of circuit: input voltage is greater than output voltage, and circuit equivalent is no bridge BUCK circuit; Just exchange the negative right side, an input source Vin left side, power switch tube S 2 and diode D1 conducting, all the other power switch pipes and diode turn-off; Exchange input source Vin and give inductance L 1 charging, and give storage capacitor C1 and equivalent load resistance energy delivery by power switch tube S 2 and diode D1.
10. the no bridge buck pfc circuit of a kind of low voltage stress as claimed in claim 2, it is characterized in that the 8th kind of mode of operation of circuit: input voltage is greater than output voltage, and circuit equivalent is no bridge BUCK circuit; Just exchange the negative right side, an input source Vin left side, power switch tube S 4 and diode D1 conducting, all the other power switch pipes and diode turn-off; The energy that is stored on the inductance L 1 passes to storage capacitor C1 and equivalent load resistance by power switch tube S 4 and diode D1.
11. the no bridge buck pfc circuit of a kind of low voltage stress as claimed in claim 2, the 9th kind of mode of operation that it is characterized in that circuit: input voltage is less than output voltage or greater than output voltage, just exchange the positive right negative or negative right side, a left side, an input source Vin left side, all power switch pipes and diode all turn-off; Inductance L 1 energy stored discharges fully, the discontinuous current of inductance L 1, and storage capacitor C1 provide energy to equivalent load resistance.
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| CN2010106071873A CN102130576B (en) | 2010-12-27 | 2010-12-27 | Bridgeless power factor correction circuit with low voltage stress for wide voltage output |
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| CN2010106071873A CN102130576B (en) | 2010-12-27 | 2010-12-27 | Bridgeless power factor correction circuit with low voltage stress for wide voltage output |
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| CN102130576B CN102130576B (en) | 2013-01-16 |
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| CN102510213A (en) * | 2011-11-04 | 2012-06-20 | 安徽工业大学 | Two-switch DC-DC (Direct-Current-Direct-Current) boost converter |
| CN104218826A (en) * | 2013-05-30 | 2014-12-17 | 弗莱克斯电子有限责任公司 | Bridgeless pfc power converter with reduced emi noise |
| CN104779784A (en) * | 2014-01-11 | 2015-07-15 | 亚荣源科技（深圳）有限公司 | Single-phase power factor corrector with voltage boosting and reduction functions |
| CN110649829A (en) * | 2019-09-16 | 2020-01-03 | 三峡大学 | Single-phase three-level power factor correction rectifier based on asymmetric four-port |
| CN110661413A (en) * | 2019-09-16 | 2020-01-07 | 三峡大学 | Single-phase three-level power factor correction rectifier based on four symmetrical ports |
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| CN102510213A (en) * | 2011-11-04 | 2012-06-20 | 安徽工业大学 | Two-switch DC-DC (Direct-Current-Direct-Current) boost converter |
| CN104218826A (en) * | 2013-05-30 | 2014-12-17 | 弗莱克斯电子有限责任公司 | Bridgeless pfc power converter with reduced emi noise |
| CN104779784A (en) * | 2014-01-11 | 2015-07-15 | 亚荣源科技（深圳）有限公司 | Single-phase power factor corrector with voltage boosting and reduction functions |
| CN110649829A (en) * | 2019-09-16 | 2020-01-03 | 三峡大学 | Single-phase three-level power factor correction rectifier based on asymmetric four-port |
| CN110661413A (en) * | 2019-09-16 | 2020-01-07 | 三峡大学 | Single-phase three-level power factor correction rectifier based on four symmetrical ports |
| CN110661413B (en) * | 2019-09-16 | 2021-07-06 | 三峡大学 | Single-phase three-level power factor correction rectifier based on four symmetrical ports |
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| Publication number | Publication date |
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| CN102130576B (en) | 2013-01-16 |
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