Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
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PARALLEL-RESONANT CONVERTER WITH ZVS-PWM CONTROL

  • Ninomiya, Tamotsu (Dept. of Elect. and Electro. Syst. Eng., Kyushu University) ;
  • Hashimoto, Takayoshi (Dept. of Elect. and Electro. Syst. Eng., Kyushu University) ;
  • Tanaka, Hidekazu (Dept. of Elect. and Electro. Syst. Eng., Kyushu University) ;
  • Syoyama, Masahito (Dept. of Elect. and Electro. Syst. Eng., Kyushu University) ;
  • Tymerski, Richard-P. (Dept. of Electrical Engineering, Portland State University)
  • Published : 1998.10.01
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Abstract

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 $\pm$1% for an output current of 2A, with an efficiency of 75%.

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