High gain isolating active clamping boost transducer

An isolated, high-gain technology, applied in the direction of converting DC power input to DC power output, instruments, and adjusting electrical variables, can solve the problems of large current stress of power switch tubes, insufficient output voltage gain, and large switching losses. Achieve the effect of increasing output gain, improving circuit efficiency, and reducing additional components
CN100499337CActive Publication Date: 2009-06-10ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2009-06-10

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Abstract

An active clamping-boosting inverter of high-gain isolation type is prepared as realizing high gain output of said inverter by series-connecting the third winding to output capacity of two coupled inductances, absorbing and transferring leakage energy of two coupled inductances nondestructively by series circuit prepared by the first clamping capacity and the first auxiliary switching tube, utilizing series circuit and parallel capacity to realize zero voltage turn on and turn off of said auxiliary switch.
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Description

technical field

[0001] The invention relates to a DC-DC converter, in particular to a high-gain isolated active clamp boost converter. Background technique

[0002] A conventional flyback (Flyback) interleaved parallel DC-DC converter includes two coupled inductors, two freewheeling diodes, two power switches, an output capacitor, and the drain of the first power switch is connected to the first coupling One end of the first winding of the inductor is connected, the drain of the second power switch is connected to one end of the first winding of the second coupled inductor, and the other end of the first winding of the first coupled inductor is connected to the first winding of the second coupled inductor One end of the second winding of the first coupled inductor is connected to the anode of the first diode, one end of the second winding of the second coupled inductor is connected to the anode of the second diode, and the first diode The cathode of the second diode is conn...

Claims

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