CN104113207B - A kind of crisscross parallel Boost including zero voltage turn-off auxiliary circuit - Google Patents
A kind of crisscross parallel Boost including zero voltage turn-off auxiliary circuit Download PDFInfo
- Publication number
- CN104113207B CN104113207B CN201410312143.6A CN201410312143A CN104113207B CN 104113207 B CN104113207 B CN 104113207B CN 201410312143 A CN201410312143 A CN 201410312143A CN 104113207 B CN104113207 B CN 104113207B
- Authority
- CN
- China
- Prior art keywords
- diode
- negative electrode
- power switch
- inductance
- switch tube
- 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.)
- Active
Links
Abstract
A kind of crisscross parallel Boost including zero voltage turn-off auxiliary circuit, including inductance L1, inductance L2... inductance L2n, described inductance L1, inductance L2... inductance L2nInput connect input power VinPositive pole.Described inductance L1, inductance L2... inductance L2nOutfan connect diode D respectively1, diode D2... diode D2nAnode.Described inductance L1, inductance L2... inductance L2nOutfan connect power switch tube S respectively1, power switch tube S2... power switch tube S2nColelctor electrode.Diode D1, diode D2... diode D2nNegative electrode be all connected with filter capacitor C0One end.Described power switch tube S1, power switch tube S2... power switch tube S2nEmitter stage, filter capacitor C0The other end is all connected with into power supply VinNegative pole.Changer of the present invention, its simple in construction, do not change former crisscross parallel Boost performance, control and drive circuit realizes difficulty, low cost and noenergy loss.
Description
Technical field
The present invention relates to a kind of crisscross parallel Boost, a kind of zero voltage turn-off auxiliary circuit that includes
Crisscross parallel Boost.
Background technology
Traditional B oost converter circuit includes an inductance, a power switch pipe, an output diode.Wherein electricity
The input of sense connects the positive pole of input power, and the anode of output terminating diode, the negative electrode of diode connects converter output terminal
Positive pole；In the drain electrode of indirect power switch pipe of the anode of inductance and diode, power switch pipe source electrode connects the negative of changer
Pole.This basic Boost is being applied to large-power occasions, due to the current tail effect of IGBT, the shutoff of switching tube
It is the highest that loss becomes, and also occupies sizable ratio in the loss of whole changer.Cause the radiator needed for changer
Volume is relatively big, and the operating frequency of switching tube is also restricted, and the power density of whole Switching Power Supply is relatively low.For the most electronic vapour
The application scenario such as car, aircraft is totally unfavorable.The research carried out for converter switches loss, currently mainly concentrate on utilize auxiliary
Help circuit to realize the Sofe Switch duty of power switch pipe.The targeted object of study of most schemes is use metal-oxide-semiconductor
Application scenario, concern is primarily with reducing the turn-on consumption of switching tube rather than turn-off power loss, this is to use IGBT's
High-power applications occasion is difficult to directly apply, and simultaneously a lot of schemes are required to auxiliary switch so that the control of former changer and
It is bigger that drive circuit realizes difficulty.
Summary of the invention
For the deficiencies in the prior art, the present invention provides a kind of crisscross parallel including zero voltage turn-off auxiliary circuit
Boost, its simple in construction, do not change former crisscross parallel Boost performance, control and drive circuit realizes difficulty
Degree, low cost and noenergy loss.
The technical scheme that the present invention takes is: a kind of crisscross parallel Boost conversion including zero voltage turn-off auxiliary circuit
Device, including inductance L1, inductance L2... inductance L2n, described inductance L1, inductance L2... inductance L2nInput connect input electricity
Source VinPositive pole.Described inductance L1, inductance L2... inductance L2nOutfan connect diode D respectively1, diode D2、……
Diode D2nAnode.Described inductance L1, inductance L2... inductance L2nOutfan connect power switch tube S respectively1, power
Switching tube S2... power switch tube S2nColelctor electrode.Diode D1, diode D2... diode D2nNegative electrode be all connected with
Filter capacitor C0One end.Described power switch tube S1, power switch tube S2... power switch tube S2nEmitter stage, filter capacitor
C0The other end is all connected with into power supply VinNegative pole.
Diode D1Anode connects auxiliary capacitor Ca1One end, auxiliary capacitor Ca1The other end connects booster diode Da2Anode,
Booster diode Da1Negative electrode connects diode D1Negative electrode；Diode D2Anode connects auxiliary capacitor Ca2One end, auxiliary capacitor Ca2Separately
One end connects booster diode Da4Anode, booster diode Da4Negative electrode connects diode D2Negative electrode；
Auxiliary capacitor Ca1One end connects booster diode Da1Anode, booster diode Da1Negative electrode connects booster diode Da4
Anode, booster diode Da4Negative electrode connects diode D2Negative electrode；Auxiliary capacitor Ca2One end connects booster diode Da3Anode, auxiliary
Help diode Da3Negative electrode connects booster diode Da2Anode, booster diode Da2Negative electrode connects diode D1Negative electrode；Described auxiliary
Electric capacity Ca1, auxiliary capacitor Ca2, booster diode Da1, booster diode Da2, booster diode Da3, booster diode Da4Constitute the
1 zero voltage turn-off auxiliary circuit；
The like: diode D2n-1Anode connects auxiliary capacitor Ca(2n-1)One end, auxiliary capacitor Ca(2n-1)The other end is even
Meet booster diode Da(4n-2)Anode, booster diode Da(4n-2)Negative electrode connects diode D2n-1Negative electrode；Diode D2nAnode is even
Meet auxiliary capacitor Ca2nOne end, auxiliary capacitor Ca2nThe other end connects booster diode Da4nAnode, booster diode Da4nNegative electrode is even
Meet diode D2nNegative electrode；Auxiliary capacitor Ca(2n-1)One end connects booster diode Da(4n-3)Anode, booster diode Da(4n-3)Cloudy
Pole connects booster diode Da4nAnode, booster diode Da4nNegative electrode connects diode D2nNegative electrode；Auxiliary capacitor Ca2nOne end is even
Meet booster diode DA(4n-1)Anode, booster diode DA(4n-1)Negative electrode connects booster diode Da2nAnode, booster diode Da2n
Negative electrode connects diode DA(2n-1)Negative electrode；Described auxiliary capacitor CA(2n-1), auxiliary capacitor Ca2n, booster diode DA(4n-3), auxiliary
Diode DA(4n-2), booster diode DA(4n-1), booster diode Da4nConstitute the n-th zero voltage turn-off auxiliary circuit.
Described power switch tube S1, power switch tube S2... power switch tube S2nGrid connect respective independence respectively
Controller, described power switch tube S1, power switch tube S2... power switch tube S2nDriving phase place between differ
180°/2n。
Wherein: n is natural number, n 1.
Power switch tube S1, power switch tube S2... power switch tube S2nFor IGBT pipe or MOSFET pipe.
A kind of crisscross parallel Boost including zero voltage turn-off auxiliary circuit of the present invention, has the beneficial effect that:
1), by using n zero voltage turn-off auxiliary circuit, it is possible to achieve the zero voltage turn-off of switching tube, effectively reduce
The loss caused by switch OFF process, and suggested plans and do not affect the design of the performance of former changer, driving circuits
And implementation.
2), may be directly applied to, in multiphase interleaving Boost, not change primary circuit structure.
3), circuit topology of the present invention simple, do not change service behaviour and the parameter designing of former changer, without active switch
Pipe, is especially suitable for the application scenario using IGBT as power switch pipe.
Accompanying drawing explanation
Fig. 1 is 2 staggered Boost converter circuit theory diagrams in parallel described in the embodiment of the present invention.
Fig. 2 is the crisscross parallel Boost circuit diagram of 2n phase zero voltage turn-off auxiliary circuit of the present invention.
Detailed description of the invention
As it is shown in figure 1, the detailed description of the invention in the staggered Boost converter in parallel of the present invention 2, staggered by 2
Basic Boost in parallel and 1 zero voltage turn-off auxiliary circuit composition.This changer becomes with common 2 staggered Boost
Parallel operation is compared, and owing to achieving the zero voltage turn-off of switching tube, when by power switch pipe turning off electric current therefore can be greatly reduced
Smearing and the loss that causes.Described DC-DC converter comprises power switch tube S1, power switch tube S2, diode
D1, diode D2, auxiliary capacitor Ca1, auxiliary capacitor Ca2, four booster diode: Da1、Da2、Da3、Da4, inductance L1, inductance L2,
Filter capacitor Co。
Inductance L1, inductance L2Input termination input power VinPositive pole, inductance L1, inductance L2Output terminates respective Boost
The anode of cell diodes and the colelctor electrode of power switch pipe.Diode D1, diode D2Negative electrode meet filter capacitor CoOne
End, this node is outfan VoutPositive pole；Power switch tube S1, power switch tube S2Emitter stage and filter capacitor CoAnother
One end all with input power VinNegative pole be connected.
Auxiliary unit occupy between the first phase with the second phase, wherein auxiliary capacitor Ca1Left end, booster diode Da1Sun
Pole and inductance L1Right-hand member, diode D1Anode and power switch tube S1Colelctor electrode be connected, auxiliary capacitor Ca1Right-hand member, auxiliary
Help diode Da2Anode and booster diode Da3Negative electrode be connected, booster diode Da2Negative electrode and diode D1、D2The moon
Pole, booster diode Da4Negative electrode and filter capacitor CoUpper end be connected, auxiliary capacitor Ca2Left end, booster diode Da3's
Anode and inductance L2Right-hand member, diode D2Anode and power switch tube S2Colelctor electrode be connected, auxiliary capacitor Ca2Right-hand member,
Booster diode Da4Anode and booster diode Da1Negative electrode be connected.
Owing to it is an object of the present invention to realize the zero voltage turn-off of switching tube, and according to the difference of switching tube off state,
Circuit can be divided into 2 kinds of duties, due to the symmetry of circuit, at this only with the first power switch tube S1Turn off process
Illustrate:
Controller controls power switch tube S1Turn off: in power switch tube S1During shutoff, auxiliary capacitor Ca1On voltage beu o, auxiliary capacitor Ca2On voltage be 0, now according to switching tube S2Conducting whether, circuit has two kinds of operation modes, respectively
For: switching tube S2Conducting (dutycycle is more than 0.5) and switching tube S2Turn off (dutycycle is less than 0.5) two kinds of situations.
1), power switch tube S1During shutoff, power switch tube S2The situation of conducting (dutycycle is more than 0.5): partial inductance electricity
Stream is through booster diode Da1, power switch tube S2To auxiliary capacitor Ca2Charging, another part inductive current is through auxiliary capacitor
Ca1, booster diode Da2To filter capacitor CoAnd load supplying, auxiliary capacitor Ca1Electric discharge, power switch tube S1Its end when off
Voltage increase rate and auxiliary capacitor Ca1Terminal voltage fall off rate and auxiliary capacitor Ca2Terminal voltage climbing speed is consistent, it is clear that
Power switch tube S among this process1Achieve zero voltage turn-off, due to auxiliary capacitor Ca1、Ca2Value less, this process continue time
Between the longest, so the performance of changer will not be produced big impact；
2), power switch tube S1During shutoff, power switch tube S2Turn off the situation of (dutycycle be less than 0.5): now due to
Power switch tube S2Being off state, all inductive currents will be through auxiliary capacitor Ca1, booster diode Da2To filter capacitor
CoAnd load supplying, auxiliary capacitor Ca1Electric discharge, power switch tube S1Its terminal voltage climbing speed and auxiliary capacitor C when offa1
Terminal voltage fall off rate is consistent, it is clear that among this process, power switch tube S1Achieve zero voltage turn-off equally, and assist electricity
Hold Ca2On voltage will be in power switch tube S2Rise to during follow-up conductingu o。
In the detailed description of the invention of the present invention, power switch pipe according to the difference of DC bus-bar voltage required in system,
And select the switching device of different voltage stress.The power switch pipe that the present invention uses can be IGBT, it is also possible to for MOSFET
Or other controlled switching tube.
In sum, this circuit topological structure is simple, can effectively reduce the turn-off power loss of power switch pipe, is suitable for application
In the application scenario that the power of switching tube use IGBT is bigger.
Implement example to be only used to operation principle and illustrate simple and have employed biphase crisscross parallel Boost and be
Example, in actual application, carried circuit can also be applied in multiphase interleaving Boost, as shown in Figure 2: 2n
The crisscross parallel Boost circuit diagram of phase zero voltage turn-off auxiliary circuit.
Claims (2)
1. include a crisscross parallel Boost for zero voltage turn-off auxiliary circuit, including inductance L1, inductance L2... electricity
Sense L2n, described inductance L1, inductance L2... inductance L2nInput connect input power VinPositive pole；
Described inductance L1, inductance L2... inductance L2nOutfan connect diode D respectively1, diode D2... diode D2n
Anode；
Described inductance L1, inductance L2... inductance L2nOutfan connect power switch tube S respectively1, power switch tube S2、……
Power switch tube S2nColelctor electrode；
Diode D1, diode D2... diode D2nNegative electrode be all connected with filter capacitor C0One end；
Described power switch tube S1, power switch tube S2... power switch tube S2nEmitter stage, filter capacitor C0The other end is equal
Connect into power supply VinNegative pole；
It is characterized in that, diode D1Anode connects auxiliary capacitor Ca1One end, auxiliary capacitor Ca1The other end connects booster diode
Da2Anode, booster diode Da2Negative electrode connects diode D1Negative electrode；Diode D2Anode connects auxiliary capacitor Ca2One end, auxiliary electricity
Hold Ca2The other end connects booster diode Da4Anode, booster diode Da4Negative electrode connects diode D2Negative electrode；
Auxiliary capacitor Ca1One end connects booster diode Da1Anode, booster diode Da1Negative electrode connects booster diode Da4Anode,
Booster diode Da4Negative electrode connects diode D2Negative electrode；Auxiliary capacitor Ca2One end connects booster diode Da3Anode, assists two poles
Pipe Da3Negative electrode connects booster diode Da2Anode, booster diode Da2Negative electrode connects diode D1Negative electrode；Described auxiliary capacitor
Ca1, auxiliary capacitor Ca2, booster diode Da1, booster diode Da2, booster diode Da3, booster diode Da4Constitute the 1st
Zero voltage turn-off auxiliary circuit；
The like: diode D2n-1Anode connects auxiliary capacitor Ca(2n-1)One end, auxiliary capacitor Ca(2n-1)The other end connects auxiliary
Diode Da(4n-2)Anode, booster diode Da(4n-2)Negative electrode connects diode D2n-1Negative electrode；Diode D2nAnode connects auxiliary
Electric capacity Ca2nOne end, auxiliary capacitor Ca2nThe other end connects booster diode Da4nAnode, booster diode Da4nNegative electrode connects two poles
Pipe D2nNegative electrode；Auxiliary capacitor Ca(2n-1)One end connects booster diode Da(4n-3)Anode, booster diode Da(4n-3)Negative electrode connects
Booster diode Da4nAnode, booster diode Da4nNegative electrode connects diode D2nNegative electrode；Auxiliary capacitor Ca2nOne end connects auxiliary
Diode DA(4n-1)Anode, booster diode DA(4n-1)Negative electrode connects booster diode Da2nAnode, booster diode Da2nNegative electrode is even
Meet diode DA(2n-1)Negative electrode；Described auxiliary capacitor CA(2n-1), auxiliary capacitor Ca2n, booster diode DA(4n-3), booster diode
DA(4n-2), booster diode DA(4n-1), booster diode Da4nConstitute the n-th zero voltage turn-off auxiliary circuit;
Described power switch tube S1, power switch tube S2... power switch tube S2nGrid connect the most independent control respectively
Device, described power switch tube S1, power switch tube S2... power switch tube S2nDriving phase place between differ 180 °/
2n。
A kind of crisscross parallel Boost including zero voltage turn-off auxiliary circuit, its feature
It is, power switch tube S1, power switch tube S2... power switch tube S2nFor IGBT pipe or MOSFET pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410312143.6A CN104113207B (en) | 2014-07-02 | A kind of crisscross parallel Boost including zero voltage turn-off auxiliary circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410312143.6A CN104113207B (en) | 2014-07-02 | A kind of crisscross parallel Boost including zero voltage turn-off auxiliary circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104113207A CN104113207A (en) | 2014-10-22 |
| CN104113207B true CN104113207B (en) | 2016-11-30 |
Family
ID=
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203942446U (en) * | 2014-07-02 | 2014-11-12 | 三峡大学 | A kind of crisscross parallel Boost converter that comprises no-voltage shutoff auxiliary circuit |
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203942446U (en) * | 2014-07-02 | 2014-11-12 | 三峡大学 | A kind of crisscross parallel Boost converter that comprises no-voltage shutoff auxiliary circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105245096B (en) | A kind of high-gain three winding cascade boost converter | |
| CN206698111U (en) | It is a kind of using switched inductors and the quasi- boost switching DC DC converters of switching capacity | |
| CN102969893A (en) | High-gain boosting type direct-current converter | |
| CN103780086B (en) | Based on the dual output bus type high-gain converter of coupling inductance times laminated structure | |
| CN105939107B (en) | A kind of quasi- boost switching DC-DC converter of mixed type | |
| CN106712503A (en) | Quasi-switch boost DC-DC converter employing switching inductor and switching capacitor | |
| CN103095134A (en) | Active network boost converter | |
| US10243455B2 (en) | Bidirectional DC-DC converter | |
| CN103095114B (en) | A kind of lossless buffer circuit being applicable to Boost | |
| CN203911754U (en) | Interleaved parallel zero-voltage switch-off high-gain DC/DC converter | |
| CN105634275A (en) | Boost converter of switch inductor | |
| CN104009645A (en) | Series-parallel connection mixed type double-output LLC resonant converter | |
| CN203911753U (en) | Zero-voltage switch-off interleaved parallel DC/DC converter | |
| CN101355305B (en) | Multifunctional active clamping structure-changing type double tube positive and negative sharp DC convertor | |
| CN104113208B (en) | Interleaved Boost converter comprising lossless buffer circuit | |
| CN109462337B (en) | High step-up ratio cascading bridge type impedance network DC/DC converter and control method | |
| CN104113207B (en) | A kind of crisscross parallel Boost including zero voltage turn-off auxiliary circuit | |
| CN203691234U (en) | Dual output bus type high-gain converter based on coupling inductor voltage multiplying structure | |
| CN110572045B (en) | High-gain DC-DC converter based on double coupling inductors | |
| CN104868719B (en) | Phase error controlled reversed polarity high-gain voltage boosting Boost conversion circuit | |
| CN204013220U (en) | A kind of crisscross parallel Boost converter that comprises lossless buffer circuit | |
| CN103762841B (en) | A kind of embedded single switch Buck-Boost converter | |
| CN106533212A (en) | Circuit topological structure of low-voltage input isolation type multi-circuit output switching power supply | |
| CN103633833B (en) | Single-switching-tube converter Boost-Buck-Boost converter | |
| CN108448892B (en) | Quadratic form is many times presses unit DC-DC converter for photovoltaic system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20141022 Assignee: Yichang Yizhixing Technology Co.,Ltd. Assignor: CHINA THREE GORGES University Contract record no.: X2023980034895 Denomination of invention: An Interleaved Parallel Boost Converter Including Zero Voltage Switching Auxiliary Circuit Granted publication date: 20161130 License type: Common License Record date: 20230426 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20141022 Assignee: NANJING YANXU ELECTRICAL TECHNOLOGY Co.,Ltd. Assignor: CHINA THREE GORGES University Contract record no.: X2023980039976 Denomination of invention: An Interleaved Parallel Boost Converter Including Zero Voltage Switching Auxiliary Circuit Granted publication date: 20161130 License type: Common License Record date: 20230823 |