CN100581033C - Active-clamp high-gain alternation and parallel connection boosting converter - Google Patents
Active-clamp high-gain alternation and parallel connection boosting converter Download PDFInfo
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- CN100581033C CN100581033C CN200810060183A CN200810060183A CN100581033C CN 100581033 C CN100581033 C CN 100581033C CN 200810060183 A CN200810060183 A CN 200810060183A CN 200810060183 A CN200810060183 A CN 200810060183A CN 100581033 C CN100581033 C CN 100581033C
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- 238000010168 coupling process Methods 0.000 claims abstract description 64
- 238000005859 coupling reaction Methods 0.000 claims abstract description 64
- 238000004804 winding Methods 0.000 claims abstract description 46
- 239000003990 capacitor Substances 0.000 abstract description 8
- 238000011084 recovery Methods 0.000 description 4
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- 238000010521 absorption reaction Methods 0.000 description 1
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Abstract
An active clamping high-gain alternate parallel voltage boosting convertor disclosed by the invention comprises two power switching diodes, two output diodes, two clamping diodes, two auxiliary power switching diodes, two clamping capacitors, two switching capacitors, an output capacitor and two coupling inductors. Two coupling inductors respectively comprise two windings. The present invention uses the second winding of two coupling inductors and two switching capacitors to realize the high-gain output of the convertor. With the leakage inductance of two coupling inductors, two clamping capacitors, the shunt capacitor existing in two power switching diodes themselves and the gate arrangement of two power switching diodes and two auxiliary power switching diodes, the zero voltage switching-on and zero voltage switching-off of two power switching diodes and two clamping diodes are realized. The soft switching-off of two output diodes and two clamping diodes are realized with the leakage inductance of two coupling inductors, and the circuit does not include energy losing element and the output gain of the convertor and the circuit efficiency can be increased.
Description
Technical field
The present invention relates to DC-DC converter, is a kind of active-clamp high-gain alternation and parallel connection boosting converter specifically.
Background technology
Conventional booster type (Boost) crisscross parallel DC-DC converter, comprise two inductance, two fly-wheel diodes, two power switch pipes, the drain electrode of first power switch pipe links to each other with the anode of first diode and an end of first inductance, the drain electrode of second power switch pipe links to each other with the anode of second diode and an end of second inductance, and the other end of first inductance links to each other with the other end of second inductance.This boost interleaved parallel DC-DC converter output voltage gain is less, and the voltage stress of power switch pipe is bigger, and power switch pipe is hard switching work, and switching loss is bigger, and the reverse recovery current of fly-wheel diode is bigger, and reverse recovery loss is bigger.In recent years, studied some soft switch circuits in succession, mainly contained two kinds: a kind of is the soft switch of realizing power switch pipe by additional active power switch and devices such as passive inductance, electric capacity; Another kind is a soft switch of realizing power switch pipe by devices such as additional diode and passive inductance, electric capacity.Though the soft switch that can realize power switch pipe of these two kinds of methods, the additional circuit complexity, and can not reduce the voltage stress of power switch pipe, can not realize the high-gain function of converter.
Summary of the invention
It is little to the purpose of this invention is to provide the power switch pipe voltage stress, simple in structure, and cost is low, and the active clamping stagger parallel connection voltage boosting-type converter with high voltage gain of noenergy loss.
For reaching above-mentioned purpose, technical solution of the present invention is, active-clamp high-gain alternation and parallel connection boosting converter comprises two power switch pipes, two clamp diodes, two output diodes, two auxiliary power switching tubes, two clamping capacitances, two switching capacities, an output capacitance and two coupling inductances, first coupling inductance has two windings, second coupling inductance has two windings, one end of one end of first winding of first coupling inductance and first winding of second coupling inductance links to each other with the anode of input power supply jointly, one end of the other end of first winding of first coupling inductance and second winding of first coupling inductance, the source electrode of the drain electrode of first power switch pipe and the first auxiliary power switching tube links to each other, the drain electrode of the first auxiliary power switching tube links to each other with an end of first clamping capacitance, the source electrode of the other end of first clamping capacitance and first power switch pipe links to each other with ground, one end of the other end of first winding of second coupling inductance and second winding of second coupling inductance, the source electrode of the drain electrode of second power switch pipe and the second auxiliary power switching tube links to each other, the drain electrode of the second auxiliary power switching tube links to each other with an end of second clamping capacitance, the source electrode of the other end of second clamping capacitance and second power switch pipe links to each other with ground, the other end of second winding of first coupling inductance links to each other with an end of the anode of first clamp diode and second switch electric capacity, the negative electrode of first clamp diode links to each other with the anode of first output diode and an end of first switching capacity, the other end of second winding of second coupling inductance links to each other with the other end of the anode of second clamp diode and first switching capacity, the negative electrode of second clamp diode links to each other with the anode of second output diode and the other end of second switch electric capacity, the negative electrode of first output diode links to each other with the negative electrode of second output diode and the anode of output capacitance, the negative terminal of output capacitance links to each other with ground, and the link of the drain electrode of the link of first winding of above-mentioned first coupling inductance and first winding of second coupling inductance and second winding of first coupling inductance and first power switch pipe and the source electrode of the first auxiliary power switching tube is the end of the same name of first coupling inductance; The link of the drain electrode of the link of first winding of second coupling inductance and first winding of first coupling inductance and second winding of second coupling inductance and second power switch pipe and the source electrode of the second auxiliary power switching tube is the end of the same name of second coupling inductance.
During work, utilize the switching capacity of second winding of two coupling inductances and series connection with it to realize the high-gain output of circuit; The shunt capacitance that the shunt capacitance and second power switch pipe that utilizes that first power switch pipe leaks, self exists between source electrode leaks, self exist between source electrode has realized that the no-voltage of first power switch pipe and second power switch pipe is turn-offed; First clamping capacitance is collected the leakage inductance energy of first coupling inductance, and second clamping capacitance is collected the leakage inductance energy of second coupling inductance, and finally transfers to input, has realized the harmless absorption of clamp circuit.In whole switch periods, by controlling the gate pulse of first power switch pipe, second power switch pipe, first auxiliary switch, can make first, second power switch pipe, first auxiliary switch realization no-voltage is opened with no-voltage and is turn-offed.
Active-clamp high-gain alternation and parallel connection boosting converter of the present invention, the switching capacity that utilizes second winding of two coupling inductances and connect has with it been realized the high-gain output of converter, the series circuit that utilizes first auxiliary switch and first clamping capacitance and second auxiliary switch and second clamping capacitance to form nondestructively absorbs and has shifted the leakage inductance energy of two coupling inductances, and realized first, the no-voltage of second power switch pipe is open-minded, utilize first, the shunt capacitance of second power switch pipe has realized first, the no-voltage of second power switch pipe is turn-offed, utilize first, second power switch pipe and first, the gate pole arrangement of second auxiliary switch, realized first, the no-voltage of second auxiliary switch is opened with no-voltage and is turn-offed, need not extra inductance element, thereby add ons is few, simple in structure, cost is low, need not extra testing circuit, noenergy losser in the circuit, can improve the output gain and the circuit efficiency of converter, and in the commutation course, no-voltage overshoot when power switch pipe turn-offs, no current overshoot when fly-wheel diode turn-offs.
Description of drawings
Fig. 1 is the circuit diagram of active-clamp high-gain alternation and parallel connection boosting converter.
Embodiment
Referring to Fig. 1, active-clamp high-gain alternation and parallel connection boosting converter of the present invention comprises two power switch tube S 1, S2, two clamp diode Dc1, Dc2, two output diode Do1, Do2, two auxiliary power switching tube Sc1, Sc2, two clamping capacitance Cc1, Cc2, two switching capacity Cf1, Cf2, an output capacitance Co and two coupling inductances, first coupling inductance has two winding L 1a, L1b, second coupling inductance has two winding L 2a, L2b, the common and input power supply V of the end of the end of the first winding L 1a of first coupling inductance and the first winding L 2a of second coupling inductance
InAnode link to each other, the end of the second winding L 1b of the other end of the first winding L 1a of first coupling inductance and first coupling inductance, the source electrode of the drain electrode of first power switch tube S 1 and the first auxiliary power switching tube Sc1 links to each other, the drain electrode of the first auxiliary power switching tube Sc1 links to each other with the end of the first clamping capacitance Cc1, the source electrode of the other end of the first clamping capacitance Cc1 and first power switch tube S 1 links to each other with ground, equally, the end of the second winding L 2b of the other end of the first winding L 2a of second coupling inductance and second coupling inductance, the source electrode of the drain electrode of second power switch tube S 2 and the second auxiliary power switching tube Sc2 links to each other, the drain electrode of the second auxiliary power switching tube Sc2 links to each other with the end of the second clamping capacitance Cc2, the source electrode of the other end of the second clamping capacitance Cc2 and second power switch tube S 2 links to each other with ground, the other end of the second winding L 1b of first coupling inductance links to each other with the end of the anode of the first clamp diode Dc1 and second switch capacitor C f2, the negative electrode of the first clamp diode Dc1 links to each other with the anode of the first output diode Do1 and the end of the first switching capacity Cf1, the other end of the second winding L 2b of second coupling inductance links to each other with the other end of the anode of the second clamp diode Dc2 and the first switching capacity Cf1, the negative electrode of the second clamp diode Dc2 links to each other with the anode of the second output diode Do2 and the other end of second switch capacitor C f2, the negative electrode of the first output diode Do1 links to each other with the negative electrode of the second output diode Do2 and the anode of output capacitance Co, and the negative terminal of output capacitance Co links to each other with ground.
There are four kinds of change of current situations in active-clamp high-gain alternation and parallel connection boosting converter, the change of current between promptly 1 shutoff of first power switch tube S and the first auxiliary switch Sc1 open; The change of current between the first auxiliary switch Sc1 shutoff and the first switching tube S 1 open; The change of current between 2 shutoffs of second power switch tube S and the first auxiliary switch Sc2 open; The change of current between the first auxiliary switch Sc2 shutoff and second power switch tube S 2 are opened.Because the symmetry of circuit, only the commutation course with first power switch tube S 1 is that example is analyzed as follows:
First power switch tube S 1 is turn-offed the commutation course of opening with the first auxiliary switch Sc1:
Before the change of current, circuit is in first power switch tube S 1, second power switch tube S 2 is open-minded, the steady-working state that the first clamp diode Dc1, the first output diode Do1, the second clamp diode Dc2, the second output diode Do2 turn-off.When first power switch tube S 1 was turn-offed, because self there is shunt capacitance in first power switch tube S 1, the voltage of first power switch tube S 1 was started from scratch and is risen so that certain slope is linear, and promptly first power switch tube S 1 has realized the no-voltage shutoff.When the voltage of first power switch tube S 1 rises to certain value, diode is open-minded in the body of the first auxiliary switch Sc1, the voltage of the first auxiliary switch Sc1 is zero, the leakage inductance energy of first coupling inductance is transferred on the first clamping capacitance Cc1, after diode is opened in the body of the first auxiliary switch Sc1, provide the gate signal of the first auxiliary switch Sc1, realized that the no-voltage of the first auxiliary switch Sc1 is open-minded.In this process, the first clamp diode Dc1, the second output diode Do2 conducting, the coupling inductance energy begins to shift to the output of circuit.Afterwards, circuit enters the first power tube S1 and turn-offs, and the first auxiliary switch Sc1 is open-minded, the steady operational status that the first clamp diode Dc1, the second output diode Do2 open.
The first auxiliary switch Sc1 turn-offs the commutation course of opening with first power switch tube S 1:
Before the first auxiliary switch Sc1 turn-offs, the leakage inductance of first coupling inductance and the first clamping capacitance Cc1 resonance, the first clamp diode Dc1, the second output diode Do2 are in the stable operation operating state of conducting.When the first auxiliary switch Sc turn-offed, because self there is shunt capacitance in first power switch tube S 1, the first auxiliary switch Sc1 voltage was started from scratch and is risen so that certain slope is linear, and promptly the first auxiliary switch Sc1 has realized the no-voltage shutoff.Shunt capacitance resonance on the leakage inductance of first coupling inductance and first power switch tube S 1, the shunt capacitance energy shifts to the leakage inductance of first coupling inductance on first power switch tube S 1, the voltage of first power switch tube S 1 begins to descend with certain slope from certain value, when the voltage of first power switch tube S 1 drops to zero, diode is open-minded in the body of first power switch tube S 1, after diode is opened in the body of first power switch tube S 1, provide first power switch tube S, 1 gate signal, realized that the no-voltage of first power switch tube S 1 is open-minded.The electric current of the first clamp diode Dc1, the second output diode Do2 begins to descend with certain slope from certain value, when the electric current of the first clamp diode Dc1, the second output diode Do2 dropped to zero, the first clamp diode Dc1, the second output diode Do2 turn-offed.Like this, the reverse recovery current of the first clamp diode Dc1, the second output diode Do2 is zero, has reduced the reverse recovery loss that the first clamp diode Dc1, the second output diode Do2 bring greatly.Afterwards, circuit enters 1 conducting of first power switch tube S, the steady operational status that the first clamp diode Dc1, the second output diode Do2 turn-off.
Claims (1)
1. active-clamp high-gain alternation and parallel connection boosting converter, it is characterized in that: comprise the first and second power switch pipe (S1, S2), first and second clamp diode (the Dc1, Dc2), first and second output diode (the Do1, Do2), the first and second auxiliary power switching tube (Sc1, Sc2), first and second clamping capacitance (the Cc1, Cc2), first and second switching capacity (the Cf1, Cf2), an output capacitance (Co) and first and second coupling inductances, first coupling inductance has the first and second winding (L1a, L1b), second coupling inductance has the first and second winding (L2a, L2b), one end of one end of first winding (L1a) of first coupling inductance and first winding (L2a) of second coupling inductance links to each other with the anode of input power supply jointly, one end of the other end of first winding (L1a) of first coupling inductance and second winding (L1b) of first coupling inductance, the source electrode of the drain electrode of first power switch pipe (S1) and the first auxiliary power switching tube (Sc1) links to each other, the drain electrode of the first auxiliary power switching tube (Sc1) links to each other with an end of first clamping capacitance (Cc1), the source electrode of the other end of first clamping capacitance (Cc1) and first power switch pipe (S1) links to each other with ground, one end of the other end of first winding (L2a) of second coupling inductance and second winding (L2b) of second coupling inductance, the source electrode of the drain electrode of second power switch pipe (S2) and the second auxiliary power switching tube (Sc2) links to each other, the drain electrode of the second auxiliary power switching tube (Sc2) links to each other with an end of second clamping capacitance (Cc2), the source electrode of the other end of second clamping capacitance (Cc2) and second power switch pipe (S2) links to each other with ground, the other end of second winding (L1b) of first coupling inductance links to each other with an end of the anode of first clamp diode (Dc1) and second switch electric capacity (Cf2), the negative electrode of first clamp diode (Dc1) links to each other with the anode of first output diode (Do1) and an end of first switching capacity (Cf1), the other end of second winding (L2b) of second coupling inductance links to each other with the other end of the anode of second clamp diode (Dc2) and first switching capacity (Cf1), the negative electrode of second clamp diode (Dc2) links to each other with the anode of second output diode (Do2) and the other end of second switch electric capacity (Cf2), the negative electrode of first output diode (Do1) links to each other with the negative electrode of second output diode (Do2) and the anode of output capacitance (Co), the negative terminal of output capacitance (Co) links to each other with ground, and the link of the drain electrode of the link of first winding (L1a) of above-mentioned first coupling inductance and first winding (L2a) of second coupling inductance and second winding (L1b) of first coupling inductance and first power switch pipe (S1) and the source electrode of the first auxiliary power switching tube (Sc1) is the end of the same name of first coupling inductance; The link of the drain electrode of the link of first winding (L2a) of second coupling inductance and first winding (L1a) of first coupling inductance and second winding (L2b) of second coupling inductance and second power switch pipe (S2) and the source electrode of the second auxiliary power switching tube (Sc2) is the end of the same name of second coupling inductance.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810060183A CN100581033C (en) | 2008-03-14 | 2008-03-14 | Active-clamp high-gain alternation and parallel connection boosting converter |
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| CN200810060183A CN100581033C (en) | 2008-03-14 | 2008-03-14 | Active-clamp high-gain alternation and parallel connection boosting converter |
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| CN100581033C true CN100581033C (en) | 2010-01-13 |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494423B (en) * | 2009-02-18 | 2012-08-08 | 南宁常萌电子科技有限公司 | Active soft switch semi-bridge method |
| CN102931845A (en) * | 2011-08-12 | 2013-02-13 | 旭丽电子(广州)有限公司 | Voltage boosting conversion device and voltage boosting conversion circuit |
| CN103023315A (en) * | 2011-09-28 | 2013-04-03 | 艾默生网络能源有限公司 | Boost circuit |
| CN103346672B (en) * | 2013-06-17 | 2015-05-06 | 重庆大学 | Multi-stage single switch boost converter |
| CN103490619B (en) * | 2013-09-16 | 2016-03-02 | 华南理工大学 | High-gain 3-Z type Boost circuit |
| CN103618446A (en) * | 2013-12-16 | 2014-03-05 | 厦门大学 | Passive clamping parallel type boost converter with coupling inductors and switch capacitors |
| CN103887977A (en) * | 2014-04-17 | 2014-06-25 | 南京航空航天大学 | Switched capacitor and multi-winding transformer formed high-gain high-frequency rectification isolation converter |
| CN104242626A (en) * | 2014-10-16 | 2014-12-24 | 青岛理工大学 | Boost-flyback converter with built-in switch coupling inductor |
| CN104506036B (en) * | 2015-01-04 | 2017-05-31 | 无锡市产品质量监督检验中心 | Suitable for the dual power supply input direct-current DC converter of photovoltaic generation occasion |
| CN105896977B (en) * | 2016-04-07 | 2018-09-11 | 厦门大学 | A kind of Sofe Switch of crisscross parallel type DC-DC converter |
| CN109787475B (en) * | 2019-02-01 | 2020-01-14 | 北京交通大学 | Two-phase interleaved capacitor clamping type ultrahigh-gain direct current converter based on coupling inductors |
| CN111726001B (en) * | 2020-06-22 | 2022-07-29 | 矽力杰半导体技术(杭州)有限公司 | Power converter |
| CN114285272B (en) * | 2021-12-13 | 2023-10-03 | 同济大学 | Variable structure DCDC conversion topology suitable for fuel cell automobile |
| CN116232062B (en) * | 2023-05-09 | 2023-07-25 | 深圳市恒运昌真空技术有限公司 | High-voltage gain converter based on coupling inductance |
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2008
- 2008-03-14 CN CN200810060183A patent/CN100581033C/en not_active Expired - Fee Related
Non-Patent Citations (2)
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| 一种新型的有源交错并联Boost软开关电路. 姚刚等.中国电机工程学报，第25卷第10期. 2005 |
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