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논문 기본 정보

자료유형
학술대회자료
저자정보
Wei-Yu Wang (Nation Kaohsiung University of Science and Technology) Jia-Hao Kuo (Nation Kaohsiung University of Science and Technology) Kuo-Yuan Lo (Nation Kaohsiung University of Science and Technology)
저널정보
전력전자학회 ICPE(ISPE)논문집 ICPE 2019-ECCE Asia
발행연도
2019.5
수록면
1,309 - 1,314 (6page)

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초록· 키워드

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The objective of this paper is to propose an inductorless non-isolated step-down converter. The proposed converter is composed of multiple charging pump dc-dc converters with interleaving operation. Based on the characteristic of charging pump capacitor, the presented converter does not require an inductor and can obtain the step-down output voltage. Advantages of the proposed converter include: inductorless power conversion, control circuit simplicity, low voltage stress, low input current ripple, low output voltage ripple, and fault-tolerant operation for each dc-dc converter module. Based on the circuit analysis, the power loss can be evaluated with the capacitance of bridge capacitor and switching frequency. Also, with the interleaved operation between the charging pump converters, the current ripple of the input can be reduced without the need of input inductor. The computer simulations and hardware experimental results are shown to verify the performance of the proposed inductorless step-down converter. The peak efficiency from an input voltage 100 V, output voltage 50 V, and output power 75W prototype is around 97.2%.

목차

Abstract
I. INTRODUCTION
II. PROPOSED INDUCTORLESS STEP-DOWN CONVERTER
III. SIMULATIONS AND EXPERIMENTAL RESULTS
IV. CONCLUSIONS
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