The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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A LC Series Resonant Boost Converter Using a Single Switch

단일 스위치를 사용한 LC직렬 공진형 부스트 컨버터

  • Received : 2010.08.05
  • Accepted : 2010.09.17
  • Published : 2010.12.20
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Abstract

In this paper, a LC series resonant boost converter using a single switch is proposed. The proposed topology contains additional passive elements in the conventional boost converter and performs Zero Voltage Switching(ZVS) without an additional auxiliary switch when a main switch turned on and off. The switch off time of the proposed system determined by LC series resonance, thus a on-time variable Pulse Frequency Modulation(PFM) method is adapted to control output voltage in the proposed converter. Operational modes of the proposed topology are divided with respected to the current conduction paths and then through the theoretical analysis and experimental results, operational modes and characteristics of the proposed converter are verified.

본 논문에서는 단일 스위치를 사용한 LC 직렬 공진형 부스트 컨버터를 제안하였다. 제안하는 토폴로지는 별도의 보조 스위치의 추가 없이 일반 부스트 컨버터에 수동소자만을 추가하여 스위치 턴-온, 턴-오프 시 영전압 스위칭(ZVS; Zero Voltage Switching)을 수행한다. 이 토폴로지는 LC직렬 공진에 의해 스위치 오프 타임이 결정되므로, 스위치 온 타임을 가변하여 출력전압을 조절하는 온 타임 가변형 주파수 변조 기법으로 제어된다. 전류 도통 경로에 따라 제안된 회로의 동작 모드를 구분하였고, 제안된 컨버터의 동작모드와 특성은 수학적 해석과 시뮬레이션 및 실험을 통해서 검증하였다.

Keywords

References

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