Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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Characteristic analysis of the current type high frequency resonant DC - DC converter

전류형 고주파 공진 DC-DC 컨버터의 특성해석

  • 황계호 (영남대학교 전기공학과) ;
  • 남승식 (경일대학교 전기공학과) ;
  • 김동희 (영남대 공대 전자ㆍ정보공학과) ;
  • 심광열 (울산과학대학 전기전자학부) ;
  • 안항목 (안양과학대학 전기ㆍ전자ㆍ통신학부)
  • Published : 2003.01.01
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Abstract

This paper describes that the resonant tank type DC-DC converter consist of reactor and capacitor resonant tank circuit for increased the output current. This circuit configuration is composed of the resonant tank circuit used resonant capacitor and reactor and the capacitor connected in switch are a common using by resonance capacitor and ZVS(Zero Voltage Switching) capacitor. Therefore, the proposed converter can reduce a switching losses, noise, and voltage stress at turn-on and turn-on and has an advantage which is able to operating safely in load short, because DC reactor is connected with resonance reactor in order to supply a fixed current with low ripple from DC power supply. The analysis of proposed circuit uses normalized parameters and characteristic estimation is generally described the proposed circuit with the characteristics of power and output voltage etc. Also, design is based on the characteristic estmations in each step. Hence, We conform a rightfulness theoretical analysis by comparing a theoretical values and experimental values obtained from experiment.

본 논문은 출력전류를 증가하기 위해서 L과 C를 공진 탱크회로로 구성하는 고주파 공진을 이용한 전류형 고주파 공진 U-U 컨버터를 보여주고 있다. 이 회로구성은 L과 C를 공진 탱크회로로 구성하였고, 스위칭 양단에 커패시터를 삽입하여 공진과 ZVS(Zero Voltage Switching) 커패시터로 동시에 사용하였다. 따라서, 컨버터는 턴ㆍ온, 턴ㆍ오프에서 스위칭 손실과 집음, 전압 스트레스를 줄일 수 있고, U전원 공급으로부터 리플이 적은 일정한 전류를 공급하기 위한 U 리액터는 공진 리액터와 연결되어 있기 때문에 부하 단락시 안정하게 동작하는 장점이 있다. 본 컨버터의 회로해석은 무차원화 파라미터 기법을 도입하여 행하였고, 또한 ZVS영역특성, 출력전력특성, 출력전압특성, 출력전류특성 등 여러 특성평가를 하였다. 여러 특성평가를 바탕으로 설계하였고, 실험을 통한 실험치와 이론치를 비교하여 이론해석의 정당성도 입증하였다.

Keywords

References

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