CN101588129A - A kind of multiple input flyback converter - Google Patents
A kind of multiple input flyback converter Download PDFInfo
- Publication number
- CN101588129A CN101588129A CNA2009100320916A CN200910032091A CN101588129A CN 101588129 A CN101588129 A CN 101588129A CN A2009100320916 A CNA2009100320916 A CN A2009100320916A CN 200910032091 A CN200910032091 A CN 200910032091A CN 101588129 A CN101588129 A CN 101588129A
- Authority
- CN
- China
- Prior art keywords
- circuit
- input channel
- fly
- input
- converter
- 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.)
- Pending
Links
- 238000004804 winding Methods 0.000 claims abstract description 31
- 239000003990 capacitor Substances 0.000 claims description 14
- 230000008859 change Effects 0.000 claims description 13
- 230000009466 transformation Effects 0.000 abstract description 2
- 230000009977 dual effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Landscapes
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a kind of multiple input flyback converter, belong to the DC converter field in the transformation of electrical energy device.This transformer configuration comprises N input channel circuit, anti exciting converter circuit and output rectification circuit, N is the natural number greater than 1, wherein N input channel circuit is connected in series with fly-wheel diode, the different name end of the former limit winding of anti exciting converter circuit and end of the same name are connected the drain electrode of anti-energizing switch pipe in the negative electrode of fly-wheel diode in the first input channel circuit and the anti exciting converter circuit respectively, anti-energizing switch pipe source electrode connects the anode of fly-wheel diode in the N input channel circuit, and the secondary winding connects output rectification circuit.As long as the switching tube of input channel has Continuity signal, the switching tube of anti exciting converter just has drive signal, when the conducting simultaneously of all switching tubes in the input channel circuit, realize all input power supplys powering load simultaneously, the input side of this converter has only a winding, situation for the multichannel input can reduce the converter volume.
Description
Technical field
The present invention relates to a kind of multiple input flyback converter, belong to the DC converter field in the transformation of electrical energy device.
Background technology
Along with the continuous aggravation of the continuous in short supply and environmental pollution of fossil energy, become the focus of present research based on the distributed generation system of new and renewable sources of energy, straight convertor is one of them important component part.And new and renewable sources of energy, as: solar energy, wind energy etc., difference with weather and area changes greatly, supply of electric power instability, discontinuous, in addition, therefore fuel cell output voltage changes with the variation of load, in order to ensure powering load reliably continuously, needs multiple new forms of energy to have complementary advantages and constitutes the associating electric power system.
Owing in the system a plurality of input sources are arranged, the voltage of every kind of input source is also unstable, so need straight convertor that voltage is regulated.Straight convertor can be divided into two classes by the input source number: single input straight convertor and many input straight convertors.Owing to have only an input source, therefore only adopt single input straight convertor in most of occasions.And new forms of energy associating electric power system has a plurality of input sources, therefore, both can adopt a plurality of single input straight convertors, can adopt the straight convertor of input more than again.In some middle low powers and input generation of electricity by new energy device close occasion, as use a plurality of single input straight convertors, will make complex structure, and cost is higher.In this application scenario,, can replace a plurality of single input straight convertors with the straight convertor of input more than in order to simplify circuit structure.
In the application scenario that needs are isolated, anti exciting converter is widely used owing to its characteristic of simple structure.Existing multiple input flyback converter can utilize the magnetic flux coupling to realize many inputs, but the former limit of this converter number of windings is identical with the input channel number, switch tube voltage stress height, input need counnter attack diode and the conducting simultaneously of each passage, and control method is more single.
Summary of the invention
The present invention is directed to the defective that exists in the background technology and propose a kind of multiple input flyback converter.
Multiple input flyback converter of the present invention, its structure comprises: N input channel circuit, anti exciting converter circuit and output rectification circuit, N is the natural number greater than 1, wherein: the input channel circuit comprises DC power supply, power switch pipe and fly-wheel diode, the positive pole of DC power supply connects the drain electrode of power switch pipe, the source electrode of power switch pipe connects the negative electrode of fly-wheel diode, and the anode of fly-wheel diode connects the negative pole of DC power supply, and N input channel circuit is connected in series with fly-wheel diode; The anti exciting converter circuit comprises anti-excited power switching tube and anti-violent change depressor, anti-violent change depressor comprises former limit winding and secondary winding again, the different name end of former limit winding connects the source electrode of first power switch pipe in the first input channel circuit and the negative electrode of first fly-wheel diode respectively, the end of the same name of former limit winding connects the drain electrode of anti-excited power switching tube, and the source electrode of anti-excited power switching tube connects the anode of the N fly-wheel diode in the N input channel circuit and the negative pole of N DC power supply; Output rectification circuit comprises output rectifier diode and output filter capacitor, the anode of output rectifier diode connects the end of the same name of secondary winding, the negative electrode of output rectifier diode connects an end of output filter capacitor and an end of output loading, and the different name end of secondary winding connects the other end of output filter capacitor and the other end of output loading.
Multiple input flyback converter prime of the present invention is the potential pulse unit, back one-level is similar to single end flyback converter, this structure has reduced the voltage stress of power switch pipe, and input source can be simultaneously or the timesharing powering load, increased the flexibility of convertor controls greatly; Reduce the winding quantity of input side under the condition that this structure realizes isolating in input and output, thereby reduced the volume of converter.
Description of drawings
Fig. 1 is the circuit theory diagrams of multiple input flyback converter of the present invention.
Fig. 2～Fig. 6 is respectively the equivalent circuit theory figure of embodiment of the invention dual input anti exciting converter at switch mode I～switch mode V.
Label title: the 1-first input channel circuit among Fig. 1～Fig. 6; The 2-second input channel circuit; N-N input channel circuit; 10-anti exciting converter circuit; The 20-output rectification circuit; U
1, U
2, U
NBe respectively first, second, the N DC power supply; Q
1, Q
2, Q
NBe respectively first, second, the N power switch pipe; Q
N+1-anti-excited power switching tube; D
1, D
2, D
NBe respectively first, second, the N fly-wheel diode; N
P, N
SBe respectively the former limit winding and the secondary winding of anti-violent change depressor; D
o-output rectifier diode; C
o-output filter capacitor; R
L-output loading; U
o-output voltage.
Embodiment
As shown in Figure 1, multiple input flyback converter of the present invention, its structure comprises: N input channel circuit, anti exciting converter circuit 10 and output rectification circuit 20, N is the natural number greater than 1, wherein: the input channel circuit comprises DC power supply, power switch pipe and fly-wheel diode, the positive pole of DC power supply connects the drain electrode of power switch pipe, the source electrode of power switch pipe connects the negative electrode of fly-wheel diode, the anode of fly-wheel diode connects the negative pole of DC power supply, and N input channel circuit is connected in series with fly-wheel diode; Anti exciting converter circuit 10 comprises anti-excited power switching tube Q
N+1With anti-violent change depressor, anti-violent change depressor comprises former limit winding N again
PWith secondary winding N
S, former limit winding N
PThe different name end connect the first power switch pipe Q in the first input channel circuit 1 respectively
1The source electrode and first sustained diode
1Negative electrode, former limit winding N
PEnd of the same name connect anti-excited power switching tube Q
N+1Drain electrode, anti-excited power switching tube Q
N+1Source electrode connect N sustained diode among the N input channel circuit N
NAnode and N DC power supply U
NNegative pole; Output rectification circuit 20 comprises output rectifier diode D
oWith output filter capacitor C
o, output rectifier diode D
oAnode connect secondary winding N
SEnd of the same name, output rectifier diode D
oNegative electrode connect output filter capacitor C
oAn end and output loading R
LAn end, secondary winding N
SThe different name end connect output filter capacitor C
oThe other end and output loading R
LThe other end.
For explanation the present invention more intuitively, be that embodiment makes a concrete analysis of with the dual input anti exciting converter below, as Fig. 2～equivalent circuit theory figure that is respectively embodiment dual input anti exciting converter at switch mode I～switch mode V shown in Figure 6.Make the following assumptions earlier before analyzing: all power switch pipes of A. and diode are desirable device, do not consider switching time and conduction voltage drop; B. electric capacity is ideal element, and transformer does not have leakage inductance, N
P/ N
S=n.
Because anti-excited power switching tube Q
N+1Open and be subject to the first power switch pipe Q
1With the second power switch pipe Q
2Open-minded, according to Q
1And Q
2Conducting whether, converter can work in following five kinds of operation modes:
1, switch mode I[as shown in Figure 2]
Under this mode, switching tube Q
1And Q
N+1Triggering and conducting, Q
2Turn-off, at this moment D
2Open to the former limit of anti-violent change depressor winding current a continuous current circuit is provided.Q
1And Q
N+1Open-minded, Q
2Turn-off Q
2The voltage that the drain-source utmost point bears is U
2D
1End D
1The voltage that bears is U
1, and D
2Forward is open-minded.U under this mode
1Stored energy in anti-violent change depressor separately, the electric current in the winding inductance of former limit is linear to rise.Output rectifier diode D
oThe voltage that bears is U
o+ U
1/ n, load current is by output filter capacitor C
oProvide.
2, switch mode II[as shown in Figure 3]
Under this mode, switching tube Q
2And Q
N+1Triggering and conducting, Q
1Turn-off, at this moment D
1Open to the former limit of anti-violent change depressor winding current a continuous current circuit is provided.Q
2And Q
N+1Open-minded, Q
1Turn-off Q
1The voltage that the drain-source utmost point bears is U
1D
2End D
2The voltage that bears is U
2, and D
1Forward is open-minded.U under this mode
2Stored energy in anti-violent change depressor separately, the electric current in the winding inductance of former limit is linear to rise.Output rectifier diode D
oThe voltage that bears is U
o+ U
2/ n, load current is by output filter capacitor C
oProvide.
3, switch mode III[as shown in Figure 4]
Under this mode, switching tube Q
1, Q
2And Q
N+1All open-minded, D
1, D
2All end U
1And U
2Series connection is to anti-violent change depressor storage power, and the electric current in the winding inductance of former limit is linear to rise.Under this mode, D
1And D
2The voltage that bears respectively is U
1And U
2Output rectifier diode D
oThe voltage that bears is U
o+ (U
2+ U
2)/n, load current is by output filter capacitor C
oProvide.
4, switch mode IV[as shown in Figure 5]
Under this mode, switching tube Q
1, Q
2And Q
N+1Equal triggering and conducting not, output rectifier diode D
oConducting, transformer is by output rectifier diode D
oTo output loading R
LDischarge, Q
1, Q
2And Q
N+1The voltage that bears is respectively U
1, U
2With anti-sharp voltage nU
o
5, switch mode V[as shown in Figure 6]
Under this mode, all switching tubes all turn-off, and all diodes all end, and remove output filter capacitor C in the circuit
oWith output loading R
LBetween energy Flow is arranged, do not have other energy Flow.
By above analysis as can be known, the dual input anti exciting converter Q of the embodiment of the invention
1And Q
2Voltage stress be respectively U
1And U
2, than Q in the conventional transducers
1And Q
2Voltage stress U
1+ nU
oAnd U
2+ nU
oReduce greatly, the control strategy of converter of the present invention can have multiple choices, and the anti-violent change depressor in the converter has only a former limit winding, has reduced the volume of converter, and these all are traditional not available advantages of multiple input flyback converter.
Claims (1)
1, a kind of multiple input flyback converter, it is characterized in that: comprise N input channel circuit, anti exciting converter circuit (10) and output rectification circuit (20), N is the natural number greater than 1, wherein: the input channel circuit comprises DC power supply, power switch pipe and fly-wheel diode, the positive pole of DC power supply connects the drain electrode of power switch pipe, the source electrode of power switch pipe connects the negative electrode of fly-wheel diode, the anode of fly-wheel diode connects the negative pole of DC power supply, and N input channel circuit is connected in series with fly-wheel diode; Anti exciting converter circuit (10) comprises anti-excited power switching tube (Q
N+1) and anti-violent change depressor, anti-violent change depressor comprises former limit winding (N again
P) and secondary winding (N
S), former limit winding (N
P) the different name end connect the first power switch pipe (Q in the first input channel circuit (1) respectively
1) the source electrode and the first fly-wheel diode (D
1) negative electrode, former limit winding (N
P) end of the same name connect anti-excited power switching tube (Q
N+1) drain electrode, anti-excited power switching tube (Q
N+1) source electrode connect N fly-wheel diode (D in the N input channel circuit (N)
N) anode and N DC power supply (U
N) negative pole; Output rectification circuit (20) comprises output rectifier diode (D
o) and output filter capacitor (C
o), output rectifier diode (D
o) anode connect secondary winding (N
S) end of the same name, output rectifier diode (D
o) negative electrode connect output filter capacitor (C
o) an end and output loading (R
L) an end, secondary winding (N
S) the different name end connect output filter capacitor (C
o) the other end and output loading (R
L) the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100320916A CN101588129A (en) | 2009-06-30 | 2009-06-30 | A kind of multiple input flyback converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100320916A CN101588129A (en) | 2009-06-30 | 2009-06-30 | A kind of multiple input flyback converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101588129A true CN101588129A (en) | 2009-11-25 |
Family
ID=41372241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100320916A Pending CN101588129A (en) | 2009-06-30 | 2009-06-30 | A kind of multiple input flyback converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101588129A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064706A (en) * | 2011-01-19 | 2011-05-18 | 南京航空航天大学 | Single-primary winding voltage source type multi-input full-bridge converter |
| CN102097943A (en) * | 2010-12-17 | 2011-06-15 | 南京航空航天大学 | Dual-input direct-current (DC) converter |
| CN102437741A (en) * | 2011-12-28 | 2012-05-02 | 南京航空航天大学 | Double-input direct-current converter using non-isolation type pulse voltage source unit |
| WO2013127068A1 (en) * | 2012-02-29 | 2013-09-06 | 深圳市核达中远通电源技术有限公司 | Multi-input direct current converter and pfc circuit |
| CN107959435A (en) * | 2018-01-09 | 2018-04-24 | 青岛大学 | Power supply flyback cycle changing type single-stage multi input inverter while band energy storage device |
| CN108023497A (en) * | 2018-01-09 | 2018-05-11 | 青岛大学 | Series connection while normal shock cycle changing type single-stage multi input annulus inverter in high frequency of powering |
| CN108448902A (en) * | 2018-04-20 | 2018-08-24 | 杭州电子科技大学 | A kind of synchronous rectification inverse-excitation type DC-DC power conversion equipment and control method |
| CN112152307A (en) * | 2020-09-01 | 2020-12-29 | 宁波大学 | Self-powered vibration energy, heat energy and light energy collaborative collecting system |
-
2009
- 2009-06-30 CN CNA2009100320916A patent/CN101588129A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097943A (en) * | 2010-12-17 | 2011-06-15 | 南京航空航天大学 | Dual-input direct-current (DC) converter |
| CN102097943B (en) * | 2010-12-17 | 2012-12-26 | 南京航空航天大学 | Dual-input direct-current (DC) converter |
| CN102064706A (en) * | 2011-01-19 | 2011-05-18 | 南京航空航天大学 | Single-primary winding voltage source type multi-input full-bridge converter |
| CN102437741A (en) * | 2011-12-28 | 2012-05-02 | 南京航空航天大学 | Double-input direct-current converter using non-isolation type pulse voltage source unit |
| WO2013127068A1 (en) * | 2012-02-29 | 2013-09-06 | 深圳市核达中远通电源技术有限公司 | Multi-input direct current converter and pfc circuit |
| US9343954B2 (en) | 2012-02-29 | 2016-05-17 | Shenzhen Vapel Power Supply Tech. Co., Ltd. | Multi-input DC converter and PFC circuit |
| CN107959435A (en) * | 2018-01-09 | 2018-04-24 | 青岛大学 | Power supply flyback cycle changing type single-stage multi input inverter while band energy storage device |
| CN108023497A (en) * | 2018-01-09 | 2018-05-11 | 青岛大学 | Series connection while normal shock cycle changing type single-stage multi input annulus inverter in high frequency of powering |
| CN108023497B (en) * | 2018-01-09 | 2020-12-25 | 青岛大学 | Series simultaneous power supply forward cycle conversion type single-stage multi-input high-frequency link inverter |
| CN108448902A (en) * | 2018-04-20 | 2018-08-24 | 杭州电子科技大学 | A kind of synchronous rectification inverse-excitation type DC-DC power conversion equipment and control method |
| CN108448902B (en) * | 2018-04-20 | 2023-11-21 | 杭州电子科技大学 | Synchronous rectification flyback DC-DC power supply conversion device and control method |
| CN112152307A (en) * | 2020-09-01 | 2020-12-29 | 宁波大学 | Self-powered vibration energy, heat energy and light energy collaborative collecting system |
| CN112152307B (en) * | 2020-09-01 | 2022-02-01 | 宁波大学 | Self-powered vibration energy, heat energy and light energy collaborative collecting system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101588129A (en) | A kind of multiple input flyback converter | |
| CN101976953B (en) | Isolated bidirectional DC-DC converter realized by coupling inductor | |
| CN203942447U (en) | A kind of ZVT crisscross parallel high-gain formula DC/DC converter | |
| CN103490628B (en) | A kind of single-phase high-gain boost converter | |
| CN101741259B (en) | Two-way DC converter | |
| CN103944396A (en) | LLC resonance type three-port DC-DC converter and control method thereof | |
| CN101867297B (en) | Single-phase soft-switching and high-gain boost converter for distributed photovoltaic power generation | |
| CN102946194A (en) | High-gain interleaving boost converter | |
| CN111725993B (en) | High-efficiency Sepic soft switch converter and control method thereof | |
| CN103095134A (en) | Active network boost converter | |
| CN105471253A (en) | T-type coupling inductance network boost converter | |
| CN205178878U (en) | Single switch high -gain converter that contains voltage -multiplying unit | |
| CN103780086B (en) | Based on the dual output bus type high-gain converter of coupling inductance times laminated structure | |
| CN105281576A (en) | Quasi-resonant half-bridge converter and control method thereof | |
| CN103151932A (en) | Buck / Boost integration type three-port direct current converter and control method thereof | |
| CN203859682U (en) | Low-input current ripple single-switch high-gain converter | |
| CN101951154A (en) | Isolation type active clamping interleaving paralleled bidirectional DC-DC converter | |
| CN106026643A (en) | High-voltage-gain DC-DC converter integrating switching capacitor and coupling inductor | |
| CN101635528B (en) | Forward single-stage isolated inverter | |
| CN102751876A (en) | Isolation type new energy power supply equipment based on three-port power converter | |
| CN101388609B (en) | Low voltage wide input push-pull positive stimulate three level DC converter and controlling method thereof | |
| CN111342664A (en) | Integrated DC-DC converter and control method thereof | |
| CN109462333B (en) | Z-source boost chopper circuit of input current continuous active switch capacitor | |
| CN104270085A (en) | DC/DC conversion circuit in solar photovoltaic power generation system | |
| CN102097943B (en) | Dual-input direct-current (DC) converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20091125 |