A New Zcs-zvs Single Phase Pfc Converter with a Lcd Snubber for Output Voltage Regulation

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چکیده

A single phase ac-dc soft switched PFC converter with a LCD snubber is presented for dc output voltage regulation. The LCD snubber cell provides zero current switching (ZCS) turn ON and zero voltage switching (ZVS) turn OFF for the converter switch without increasing current or voltage stress. In this study, steady state analysis of proposed PFC converter is presented in detail and the theoretical analysis with its operation stages is verified with simulation results. This converter has a total efficiency of 95% and 0.994 power factor with sinusoidal input line current. Moreover the proposed converter is compared with the hard switched PFC converter and it can be seen that the improvement of efficiency is significantly achieved.

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تاریخ انتشار 2015