Study on high efficiency DC/DC converter with a new coupled inductor rectifier (CIR) structure = 새로운 결합 인덕터 정류기 구조를 갖는 고효율 DC/DC 컨버터에 관한 연구

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In this dissertation, a new rectifier structures adopting a coupled inductor are proposed. By using the rectifier structure, the proposed half-bridge and full-bridge converter overcome limitations of the conventional converters while it keeps the advantages of them. The proposed coupled-inductor-rectifier (CIR) has three major advantages. First, it has small voltage stress in rectifier diodes which enables a use of small voltage stress diodes having low VF. Second, two snubber circuits are eliminated compared with the FBR. It not only decreases cost and complexity of the converter, but it also increases efficiency. Lastly, combined with half-bridge and full-bridge inverters of primary side, the CIR solves the main problems of the conventional converters such as DC-offset current of the transformer and primary freewheeling current. Furthermore, since the proposed converters do not require any additional components even though they have remarkable performances, the proposed converters will be good candidates for various applications.
Advisors
Moon, Gun-Wooresearcher문건우researcher
Description
한국과학기술원 :전기및전자공학부,
Publisher
한국과학기술원
Issue Date
2020
Identifier
325007
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 전기및전자공학부, 2020.2,[vi, 87 p. :]

Keywords

Coupled-inductor-rectifier▼avoltage stress of diode▼asnubber circuit▼ahalf-bridge converter▼afull-bridge converter▼aDC-offset current of the transformer▼afreewheeling current▼ahigh efficiency; 결합 인덕터 정류기▼a다이오드 전압 스트레스▼a스너버 회로▼a하프-브릿지 컨버터▼a풀-브릿지 컨버터▼a트랜스포머 직류 오프셋 전류▼a환류 전류▼a고효율

URI
http://hdl.handle.net/10203/284226
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=909483&flag=dissertation
Appears in Collection
EE-Theses_Ph.D.(박사논문)
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