전기전자학회논문지 (Journal of IKEEE)

  • 제23권3호
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  • Pages.962-970
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  • 2019
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  • 1226-7244(pISSN)
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  • 2288-243X(eISSN)
한국전기전자학회 (Institute of Korean Electrical and Electronics Engineers)
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자기구동 동기스위치를 이용한 비절연 고효율 고전압출력 DC-DC 컨버터

Non-Isolation, High-Efficiency and High-Voltage-Output DC-DC Converter using the Self-Driven Synchronous Switch

  • Jeong, Gang-Youl (Dept. of Electronic Information Engineering, Soonchunhyang University)
  • 투고 : 2019.09.05
  • 심사 : 2019.09.25
  • 발행 : 2019.09.30
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초록

본 논문에서는 자기구동 동기스위치를 이용한 비절연 고효율 고전압출력 DC-DC 컨버터를 제안한다. 제안하는 컨버터는 전통적인 승압형 DC-DC 컨버터 구조에 탭형 인덕터를 적용함으로써 고전압출력을 달성하며 주스위치부에 무손실 커패시터-다이오드(LCD, lossless capacitor-diode) 스너버를 적용하여 스위치 전압스트레스를 저감한다. 그리고 출력부에 다이오드 대신에 동기스위치를 적용함으로써 역회복 문제를 해결하고 고효율을 달성한다. 제안한 컨버터의 동기스위치는 자기구동방식을 이용하고 단순한 구조를 가진다. 본 논문에서는 제안한 컨버터의 동작원리를 먼저 설명하고, 후에 컨버터 프로토타입의 설계예를 제시한다. 그리고 설계된 회로파라미터로 제작된 프로토타입의 실험결과로써 제안한 컨버터의 특성을 보인다.

In this paper, the non-isolation, high-efficiency and high-voltage-output DC-DC converter using the self-driven synchronous switch is proposed. The proposed converter achieves high-voltage-output by applying a tapped inductor to the conventional boost DC-DC converter structure, and it reduces the voltage stress of main switch applying the lossless capacitor-diode (LCD) snubber to the switch. And the proposed converter applies the synchronous switch instead of the diode to the output part, and thus it resolves the reverse recovery problem and achieves high-efficiency. The synchronous switch of proposed converter uses the self-driven method and has a simple structure. In this paper, the operation principle of proposed converter is explained, and then, a design example of the converter prototype is presented. And the characteristics of the proposed converter are shown through experimental results of the prototype made with the designed circuit parameters.

키워드

참고문헌

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