New Zero-Current-Switching PWM Converters

새로운 영전류 스위칭 방식의 PWM 컨버터

  • Ma, Geun-Su (Korea Aerospace Research Institute) ;
  • Kim, Yang-Mo (Dept.of Electronics Engineering, Chungnam National University)
  • Published : 2001.09.01

Abstract

In conventional zero-current-switching(ZCS) PWM converters, zero-current turn-off for main switch without increasing voltage/current stresses is achieved at a fixed frequency. The switching loss, stress, and noise, however, can\`t be minimized because they adopt auxiliary switches turned off and main switches turned on under hard-switching condition. In this paper, new ZCS-PWM converters of which all switches are always operating with soft-switching condition are proposed. Therefore, the proposed ZCS-PWM converters are most suitable for systems requiring high-power density Breadboarded ZCS-PWM boost converters using power MOSFET are constructed to verify theoretical analysis.

Keywords

References

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