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PARALLEL-RESONANT CONVERTER WITH ZVS-PWM CONTROL
Tamotsu NINOMIYA,Takayoshi HASHIMOTO,Hidekazu TANAKA,Masahito SYOYAMA,Richard P.TYMERSKI 전력전자학회 1998 ICPE(ISPE)논문집 Vol.- No.-
A parallel-resonant converter with zero-voltage-switching, pulse-width-modulation (ZVS-PWM) control is proposed Similar to the previously proposed series-resonant counterpart, it has a simple structure and can be controlled at a constant switching frequency using an active-clamp technique The nearly constant current output characteristic of the parallel-resonant converter lends itself beneficially to precisely controlled constant current power supply applications. An experimental breadboard featured an accuracy of ± 1% for an output current of 2A, with an efficiency of 75%.<br/>