DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Moon, Gun-Woo | - |
dc.contributor.advisor | 문건우 | - |
dc.contributor.author | Bae, Juhyun | - |
dc.date.accessioned | 2023-06-26T19:33:59Z | - |
dc.date.available | 2023-06-26T19:33:59Z | - |
dc.date.issued | 2022 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=997202&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/309895 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 전기및전자공학부, 2022.2,[iii, 34 p. :] | - |
dc.description.abstract | A conventional asymmetrical half-bridge (AHB) converter is one of the widely used topologies in low to medium power applications. However, when it is designed in a wide input voltage range, it operates with a low duty ratio at nominal input voltage. In addition, it has disadvantages such as a non-linear voltage gain, a DC-offset current in the transformer, and an unbalanced average current of diode due to asymmetrical operation. To solve these disadvantages, an AHB converter with linear voltage gain is proposed. The proposed converter has a structure in which a capacitor is added as a voltage source to obtain a symmetrical operation by extending the commutation period. Therefore, it has a narrow range of operating duty ratio and a zero DC-offset current in the transformer. Due to zero DC-offset current, it has a small size transformer and improved ZVS conditions of the primary side switches. In addition, it has a low primary RMS current and a balanced average current of the diode. Consequently, the proposed converter has high efficiency under entire load conditions. A 300-400 V input and 48 V/400 W output prototype is tested to verify the feasibility of the proposed converter. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.title | (A) high-efficiency asymmetrical half-bridge converter with linear voltage gain | - |
dc.title.alternative | 선형 전압 이득을 갖는 고효율 비대칭 하프 브리지 컨버터 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :전기및전자공학부, | - |
dc.contributor.alternativeauthor | 배주현 | - |
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