CN104113207A - Interleaved parallel Boost converter including zero voltage turn-off auxiliary circuit - Google Patents
Interleaved parallel Boost converter including zero voltage turn-off auxiliary circuit Download PDFInfo
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- CN104113207A CN104113207A CN201410312143.6A CN201410312143A CN104113207A CN 104113207 A CN104113207 A CN 104113207A CN 201410312143 A CN201410312143 A CN 201410312143A CN 104113207 A CN104113207 A CN 104113207A
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- diode
- negative electrode
- power switch
- switch tube
- booster diode
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Abstract
An interleaved parallel Boost converter including a zero voltage turn-off auxiliary circuit includes an inductor L1, an inductor L2,. . ., and an inductor L2n, and input ends of the inductor L1, the inductor L2,. . . and the inductor L2n are connected with a positive electrode of an input power supply Vin. Output ends of the inductor L1, the inductor L2,. . . and the inductor L2n are connected with anodes of a diode D1, a diode D2,. . .and a diode D2n. The output ends of the inductor L1, the inductor L2,. . ., and the inductor L2n are connected with collector electrodes of a power switch tube S1, a power switch tube S2, and a power switch tube S2n. Cathodes of the diode D1, the diode D2,. . .and the diode D2n are connected with one end of a filter capacitor C0. Emitting electrodes of the power switch tube S1, the power switch tube S2,. . .and the power switch tube S2n and the other end of the filter capacitor C0 are connected with a negative electrode of the input power supply Vin. The converter in the invention is simple in structure, performance of an original interleaved parallel Boost converter is not changed, implementation difficulty of control and drive circuits is lowered, cost is low, and no energy loss occurs.
Description
Technical field
The present invention relates to a kind of crisscross parallel Boost converter, particularly a kind of crisscross parallel Boost converter that comprises no-voltage shutoff auxiliary circuit.
Background technology
Traditional B oost converter circuit comprises an inductance, a power switch pipe, an output diode.Wherein the input of inductance connects the positive pole of input power, the anode of output terminating diode, and the negative electrode of diode connects the positive pole of converter output terminal; Between inductance and the anode of diode, connect the drain electrode of power switch pipe, power switch pipe source electrode connects the negative pole of converter.This basic Boost converter is being applied to large-power occasions, and due to the current tail effect of IGBT, it is very high that the turn-off power loss of switching tube becomes, and also occupied sizable ratio in the loss of whole converter.Cause the required radiator volume of converter larger, the operating frequency of switching tube is also restricted, and the power density of whole Switching Power Supply is lower.For as totally unfavorable in application scenarios such as electric automobile, aircrafts.The research of carrying out for converter switches loss, mainly concentrates on the soft switch working state that utilizes auxiliary circuit to realize power switch pipe at present.Most schemes institute for research object be the application scenario of use metal-oxide-semiconductor, it is main that what pay close attention to is to reduce the turn-on consumption of switching tube but not turn-off power loss, to use IGBT be that main high-power applications occasion is difficult to direct application take for this, simultaneously a lot of schemes all need auxiliary switch, make the driving circuits of former converter realize difficulty larger.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of crisscross parallel Boost converter that comprises no-voltage shutoff auxiliary circuit, it is simple in structure, does not change former crisscross parallel Boost transducer performance, control and drive circuit is realized difficulty the low and noenergy loss of cost.
The technical scheme that the present invention takes is: a kind of crisscross parallel Boost converter that comprises no-voltage shutoff auxiliary circuit, comprises inductance L
1, inductance L
2... inductance L
2n, described inductance L
1, inductance L
2... inductance L
2ninput connect input power V
inpositive pole.Described inductance L
1, inductance L
2... inductance L
2noutput connect respectively diode D
1, diode D
2... diode D
2nanode.Described inductance L
1, inductance L
2... inductance L
2noutput connect respectively power switch tube S
1, power switch tube S
2... power switch tube S
2ncollector electrode.Diode D
1, diode D
2... diode D
2nnegative electrode all connect filter capacitor C
0one end.Described power switch tube S
1, power switch tube S
2... power switch tube S
2nemitter, filter capacitor C
0the other end all connects into power supply V
innegative pole.
Diode D
1anodic bonding auxiliary capacitor Ca
1one end, auxiliary capacitor Ca
1the other end connects booster diode D
a1anode, booster diode D
a1negative electrode connects diode D
1negative electrode; Diode D
2anodic bonding auxiliary capacitor C
a2one end, auxiliary capacitor C
a2the other end connects booster diode D
a4anode, booster diode D
a4negative electrode connects diode D
2negative electrode;
Auxiliary capacitor C
a1one end connects booster diode D
a1anode, booster diode D
a1negative electrode connects booster diode D
a4anode, booster diode D
a4negative electrode connects diode D
2negative electrode; Auxiliary capacitor C
a2one end connects booster diode D
a3anode, booster diode D
a3negative electrode connects booster diode D
a2anode, booster diode D
a2negative electrode connects diode D
1negative electrode; Described auxiliary capacitor C
a1, auxiliary capacitor C
a2, booster diode D
a1, booster diode D
a2, booster diode D
a3, booster diode D
a4form the 1st no-voltage and turn-off auxiliary circuit;
The like: diode D
2n-1anodic bonding auxiliary capacitor Ca
(2n-1)one end, auxiliary capacitor Ca
(2n-1)the other end connects booster diode Da
(4n-3)anode, booster diode Da
(4n-3)negative electrode connects diode D
2n-1negative electrode; Diode D
2nanodic bonding auxiliary capacitor Ca
2none end, auxiliary capacitor Ca
2nthe other end connects booster diode D
a4nanode, booster diode D
a4nnegative electrode connects diode D
2nnegative 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 Da
4nanode, booster diode D
a4nnegative electrode connects diode D
2nnegative electrode; Auxiliary capacitor C
a2none end connects booster diode D
a(4n-1)anode, booster diode D
a(4n-1)negative electrode connects booster diode D
a2nanode, booster diode D
a2nnegative electrode connects diode D
a(2n-1)negative electrode; Described auxiliary capacitor C
a(2n-1), auxiliary capacitor C
a2n, booster diode D
a(4n-3), booster diode D
a(4n-2), booster diode D
a(4n-1), booster diode D
a4nform n no-voltage and turn-off auxiliary circuit.
Described power switch tube S
1, power switch tube S
2... power switch tube S
2ngrid connect respectively separately independently controller, described power switch tube S
1, power switch tube S
2... power switch tube S
2ndriving phase place between differ 180 °/2n.
Wherein: n is natural number, n≤1.
Power switch tube S
1, power switch tube S
2... power switch tube S
2nfor TGBT pipe or MOSFET pipe.
A kind of crisscross parallel Boost converter that comprises no-voltage shutoff auxiliary circuit of the present invention, beneficial effect is as follows:
1), by adopting n no-voltage to turn-off auxiliary circuit, can realize the no-voltage of switching tube and turn-off, the loss that effectively reduction is caused by switch turn off process, and suggest plans and do not affect the performance of former converter, the design of driving circuits and implementation.
2), can directly apply in multiphase interleaving Boost converter, do not change primary circuit structure.
3), circuit topology of the present invention is simple, do not change service behaviour and the parameter designing of former converter, without active switch pipe, be especially applicable to adopting IGBT as the application scenario of power switch pipe.
Accompanying drawing explanation
Fig. 1 is 2 staggered Boost boost converter circuit schematic diagrams in parallel described in the embodiment of the present invention.
Fig. 2 is the crisscross parallel Boost converter circuit figure that 2n phase no-voltage of the present invention is turn-offed auxiliary circuit.
Embodiment
As shown in Figure 1, the embodiment in the staggered Boost booster converter in parallel of the present invention 2, turn-offs auxiliary circuit by the basic Boost converter of 2 staggered parallel connection and 1 no-voltage and forms.This converter is compared with 2 common staggered Boost converters, owing to having realized the no-voltage of switching tube, turn-offs, and therefore can significantly reduce current tail effect while being turn-offed by power switch pipe and the loss that causes.Described DC-DC converter comprises power switch tube S
1, power switch tube S
2, diode D
1, diode D
2, auxiliary capacitor C
a1, auxiliary capacitor C
a2, four booster diode: D
a1, D
a2, D
a3, D
a4, inductance L
1, inductance L
2, filter capacitor C
o.
Inductance L
1, inductance L
2input termination input power V
inpositive pole, inductance L
1, inductance L
2output termination is the anode of Boost cell diodes and the collector electrode of power switch pipe separately.Diode D
1, diode D
2negative electrode meet filter capacitor C
oone end, this node is output V
outpositive pole; Power switch tube S
1, power switch tube S
2emitter and filter capacitor C
othe other end all with input power V
innegative pole be connected.
Auxiliary unit occupy between first-phase and second-phase, wherein auxiliary capacitor C
a1left end, booster diode D
a1anode and inductance L
1right-hand member, diode D
1anode and power switch tube S
1collector electrode be connected, auxiliary capacitor C
a1right-hand member, booster diode D
a2anode and booster diode D
a3negative electrode be connected, booster diode D
a2negative electrode and diode D
1, D
2negative electrode, booster diode D
a4negative electrode and filter capacitor C
oupper end be connected, auxiliary capacitor C
a2left end, booster diode D
a3anode and inductance L
2right-hand member, diode D
2anode and power switch tube S
2collector electrode be connected, auxiliary capacitor C
a2right-hand member, booster diode D
a4anode and booster diode D
a1negative electrode be connected.
Because target of the present invention is that the no-voltage that realizes switching tube is turn-offed, and according to the difference of switching tube off state, circuit can be divided into 2 kinds of operating states, due to the symmetry of circuit, at this only with the first power switch tube S
1turn off process describe:
Controller power ratio control switching tube S
1turn-off: in power switch tube S
1during shutoff, auxiliary capacitor C
a1on voltage be
u o, auxiliary capacitor C
a2on voltage be 0, now according to switching tube S
2conducting whether, circuit has two kinds of operation modes, is respectively: switching tube S
2conducting (duty ratio is greater than 0.5) and switching tube S
2(duty ratio is less than 0.5) two kinds of situations of shutoff.
1), power switch tube S
1during shutoff, power switch tube S
2the situation of conducting (duty ratio is greater than 0.5): partial inductance electric current is through booster diode D
a1, power switch tube S
2to auxiliary capacitor C
a2charging, another part inductive current is through auxiliary capacitor C
a1, booster diode D
a2to filter capacitor C
oand load supplying, auxiliary capacitor C
a1electric discharge, power switch tube S
1its terminal voltage climbing speed and auxiliary capacitor C when turn-offing
a1terminal voltage fall off rate and auxiliary capacitor C
a2terminal voltage climbing speed is consistent, obviously power switch tube S among this process
1realized no-voltage shutoff, due to auxiliary capacitor C
a1, C
a2value less, this process duration is not long, so can not produce large impact to the performance of converter;
2), power switch tube S
1during shutoff, power switch tube S
2turn-off the situation of (duty ratio is less than 0.5): now due to power switch tube S
2in off state, all inductive currents will be through auxiliary capacitor C
a1, booster diode D
a2to filter capacitor C
oand load supplying, auxiliary capacitor C
a1electric discharge, power switch tube S
1its terminal voltage climbing speed and auxiliary capacitor C when turn-offing
a1terminal voltage fall off rate is consistent, obviously among this process, and power switch tube S
1realized equally no-voltage shutoff, and auxiliary capacitor C
a2on voltage will be in power switch tube S
2during follow-up conducting, rise to
u o.
In the specific embodiment of the present invention, power switch pipe is according to the difference of required DC bus-bar voltage in system, and selects the switching device of different voltage stresss.The power switch pipe that the present invention uses can be IGBT, can be also 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 applicable to being applied to the larger application scenario of power that switching tube is used IGBT.
Implementing example is only used to operation principle and sets forth simple and to have adopted two-phase crisscross parallel Boost converter be example, in actual application, the circuit of carrying also can be applied in multiphase interleaving Boost converter, as shown in Figure 2: 2n phase no-voltage is turn-offed the crisscross parallel Boost converter circuit figure of auxiliary circuit.
Claims (2)
1. a crisscross parallel Boost converter that comprises no-voltage shutoff auxiliary circuit, comprises inductance L
1, inductance L
2... inductance L
2n, described inductance L
1, inductance L
2... inductance L
2ninput connect input power V
inpositive pole; Described inductance L
1, inductance L
2... inductance L
2noutput connect respectively diode D
1, diode D
2... diode D
2nanode; Described inductance L
1, inductance L
2... inductance L
2noutput connect respectively power switch tube S
1, power switch tube S
2... power switch tube S
2ncollector electrode; Diode D
1, diode D
2... diode D
2nnegative electrode all connect filter capacitor C
0one end; Described power switch tube S
1, power switch tube S
2... power switch tube S
2nemitter, filter capacitor C
0the other end all connects into power supply V
innegative pole; It is characterized in that diode D
1anodic bonding auxiliary capacitor Ca
1one end, auxiliary capacitor Ca
1the other end connects booster diode D
a1anode, booster diode D
a1negative electrode connects diode D
1negative electrode; Diode D
2anodic bonding auxiliary capacitor C
a2one end, auxiliary capacitor C
a2the other end connects booster diode D
a4anode, booster diode D
a4negative electrode connects diode D
2negative electrode;
Auxiliary capacitor C
a1one end connects booster diode D
a1anode, booster diode D
a1negative electrode connects booster diode D
a4anode, booster diode D
a4negative electrode connects diode D
2negative electrode; Auxiliary capacitor C
a2one end connects booster diode D
a3anode, booster diode D
a3negative electrode connects booster diode D
a2anode, booster diode D
a2negative electrode connects diode D
1negative electrode; Described auxiliary capacitor C
a1, auxiliary capacitor C
a2, booster diode D
a1, booster diode D
a2, booster diode D
a3, booster diode D
a4form the 1st no-voltage and turn-off auxiliary circuit;
The like: diode D
2n-1anodic bonding auxiliary capacitor Ca
(2n-1)one end, auxiliary capacitor Ca
(2n-1)the other end connects booster diode Da
(4n-3)anode, booster diode Da
(4n-3)negative electrode connects diode D
2n-1negative electrode; Diode D
2nanodic bonding auxiliary capacitor Ca
2none end, auxiliary capacitor Ca
2nthe other end connects booster diode D
a4nanode, booster diode D
a4nnegative electrode connects diode D
2nnegative 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 Da
4nanode, booster diode D
a4nnegative electrode connects diode D
2nnegative electrode; Auxiliary capacitor C
a2none end connects booster diode D
a(4n-1)anode, booster diode D
a(4n-1)negative electrode connects booster diode D
a2nanode, booster diode D
a2nnegative electrode connects diode D
a(2n-1)negative electrode; Described auxiliary capacitor C
a(2n-1), auxiliary capacitor C
a2n, booster diode D
a(4n-3), booster diode D
a(4n-2), booster diode D
a(4n-1), booster diode D
a4nform n no-voltage and turn-off auxiliary circuit;
Described power switch tube S
1, power switch tube S
2... power switch tube S
2ngrid connect respectively separately independently controller, described power switch tube S
1, power switch tube S
2... power switch tube S
2ndriving phase place between differ 180 °/2n.
2. a kind ofly according to claim 1 comprise that no-voltage turn-offs the crisscross parallel Boost converter of auxiliary circuit, it is characterized in that power switch tube S
1, power switch tube S
2... power switch tube S
2nfor TGBT 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 true CN104113207A (en) | 2014-10-22 |
| CN104113207B CN104113207B (en) | 2016-11-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533173A (en) * | 2016-12-29 | 2017-03-22 | 三峡大学 | High-gain DC/DC converter with adjustable input phase number |
| CN113691127A (en) * | 2021-08-29 | 2021-11-23 | 三峡大学 | Single-input high-reliability capacitor current consistent type Boost DC-DC converter |
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| CN1588773A (en) * | 2004-07-08 | 2005-03-02 | 浙江大学 | Boost type active interlaced parallel soft switch circuit |
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| CN101510726A (en) * | 2009-03-23 | 2009-08-19 | 浙江大学 | Passive clamping voltage boosting type interleave parallel connection converter implemented by coupling inductance and switch capacitance |
| CN102208868A (en) * | 2011-04-29 | 2011-10-05 | 南京航空航天大学 | Direct-current to direct-current converter with high boost transformation ratio |
| CN103095114A (en) * | 2013-01-18 | 2013-05-08 | 重庆大学 | Lossless buffer circuit suitable for Boost converter |
| CN103618446A (en) * | 2013-12-16 | 2014-03-05 | 厦门大学 | Passive clamping parallel type boost converter with coupling inductors and switch capacitors |
| 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 (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588773A (en) * | 2004-07-08 | 2005-03-02 | 浙江大学 | Boost type active interlaced parallel soft switch circuit |
| CN101247084A (en) * | 2008-03-14 | 2008-08-20 | 浙江大学 | Active-clamp high-gain alternation and parallel connection boosting converter |
| CN101510726A (en) * | 2009-03-23 | 2009-08-19 | 浙江大学 | Passive clamping voltage boosting type interleave parallel connection converter implemented by coupling inductance and switch capacitance |
| CN102208868A (en) * | 2011-04-29 | 2011-10-05 | 南京航空航天大学 | Direct-current to direct-current converter with high boost transformation ratio |
| CN103095114A (en) * | 2013-01-18 | 2013-05-08 | 重庆大学 | Lossless buffer circuit suitable for Boost converter |
| CN103618446A (en) * | 2013-12-16 | 2014-03-05 | 厦门大学 | Passive clamping parallel type boost converter with coupling inductors and switch capacitors |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533173A (en) * | 2016-12-29 | 2017-03-22 | 三峡大学 | High-gain DC/DC converter with adjustable input phase number |
| CN106533173B (en) * | 2016-12-29 | 2020-10-23 | 三峡大学 | High-gain DC/DC converter with adjustable input phase number |
| CN113691127A (en) * | 2021-08-29 | 2021-11-23 | 三峡大学 | Single-input high-reliability capacitor current consistent type Boost DC-DC converter |
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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 |
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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 |
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