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Zero-voltage and zero-current transition chopper circuit
Pages: 477-482
Year: Issue:  4
Journal: Electric Machines and Control

Keyword:  DC-DC converterboost chopper circuitsoft switchinginsulated gate bipolar transistor;
Abstract: In order to realize a simple topology with high efficiency, high frequency, low voltage stress, which is easy to control soft switching boost converter, a novel zero-voltage and zero-current transition chopper is presented in the paper. Its operation principle is analyzed through its application to the boost converter. The condition of soft-switching and the design considerations are analyzed in detail. The novel soft-switching cell can be also used in other basic chopper circuits. The simulation and experiment results prove that soft-switching of the main switch and auxiliary can be achieved by using two auxiliary resonant networks. The proposed chopper circuit has such advantages as zero-current turn-on and zero-voltage turn-off for the main switch without increasing voltage and current stress, zero-current turn-on and turn-off for auxiliary switches. It is very attractive for high power application where IGBT is predominantly used as the power switches.
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