Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
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Design of Digital Controller for Phase Shifted Full-Bridge Converter

위상 천이 풀-브릿지 컨버터의 디지털 제어기 설계

  • Lim Jeong-Gyu (Dept. of Electrical & Electronic Engineering, Gyeongsang National University) ;
  • Seo Eun-Kyung (Dept. of Electrical & Electronic Engineering, Gyeongsang National University) ;
  • Chung Se-Kyo (Dept. of Electrical & Electronic Engineering, Gyeongsang National University) ;
  • Lee Hyun-Woo (Dept. of Electrical Engineering, Kyungnam University)
  • 임정규 (경상대학교 전기전자공학부) ;
  • 서은경 (경상대학교 전기전자공학부) ;
  • 정세교 (경상대학교 전기전자공학부) ;
  • 이현우 (경남대학교 전기공학과)
  • Published : 2006.06.01
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Abstract

Of all the proposed resonant techniques, the well-known phase-shifted full bridge converter remains one of the most attractive because it offers an easy way of achieving ZVS with a minimum of extra components added, which is essential for the high power applications. This paper describes the design of a digital controller for a Phase Shifted Full-bridge PWM Converter. The small-signal model is derived incorporating the effects of phase-shift control and the utilization of the transformer leakage inductance and power FET junction capacitances to achieve the zero-voltage resonant switching. Based on the derived small-signal model, the digital controller is designed in the discrete domain. The performance of designed controller is verified through the simulation.

Keywords