다중공진회로를 이용한 고효율 DC-DC 컨버터
High-Efficiency DC-DC Converter using the Multi-Resonant-Circuit
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초록
본 논문에서는 다중공진회로를 이용한 고효율 DC-DC 컨버터를 제안한다. 제안한 컨버터는 하프브리지 전력구조이며 컨버터의 고효율화를 위해 2개의 인덕터(LL)와 1개의 커패시터(C)로 구성된 다중공진회로를 이용한다. 이 다중공진회로는 동작모드에 따라, 각각의 공진주파수를 가진 직렬회로 형태의 공진회로를 각각 형성한다. 본 논문에서는 먼저, 동작모드와 정상상태 기본파 근사 모델링에 의해 제안한 컨버터의 동작원리를 설명한다. 그다음 이에 근거하여 제안한 컨버터의 설계예시를보인다. 그리고 설계된 회로 파라미터에 의해 제작된 프로토타입 컨버터의 실험결과를 통하여 제안한 컨버터의 고효율DC-DC 전력변환 동작특성을 입증한다.
Abstract
This paper presents the high-efficiency DC-DC converter using the multi-resonant-circuit. The proposed converterhas the power topology of half-bridge and utilizes the multi-resonant-circuit that is composed of 2 inductors (LL) and1 capacitor (C) to achieve high-efficiency. The multi-resonant-circuit forms each resonant circuit of series circuit typewith each resonant frequency, according to the operation modes. This paper first describes the operation pirinciples ofproposed converter by the operation modes and steady-state fundamental approximation modelling. Then it shows adesign example of the proposed converter based on the principles. And it is validated that the proposed converter has theoperation characteristics of high-efficiency DC-DC power conversion through the experimental results of prototypeconverter implemented by the designed circuit parameters.
참고문헌 (14)
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