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논문 기본 정보

자료유형
학술저널
저자정보
Qingsong Wang (Southeast University) Ming Cheng (Southeast University) Bing Zhang (Southeast University)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.15 No.2
발행연도
2015.3
수록면
567 - 575 (9page)

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초록· 키워드

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An improvement in the current fed parallel resonant half bridge (CFPRHB) circuits used in fluorescent lamp electronic ballasts is provided in this paper. The CFPRHB belongs to the self-oscillating family which includes the current fed push-pull and series resonant inverters, most of which are used in instant-start applications. However, many failure modes are related to the bypass capacitor according to an analysis of failed samples. In this paper, the operating functions of the existing topology in the steady state are analyzed and the main root cause of failure modes has been found. Comparisons between the two topologies are conducted in terms of the voltage stress of the bypass capacitor as well as the thermal and performance of the ballasts to verify the advantages of the proposed topology. It is found that the improved topology is capable of enhancing the reliability and reducing the cost of products without having a negative influence on the system performance.

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Abstract
Ⅰ. INTRODUCTION
Ⅱ. ISSUES OF THE TRADITIONAL CFPRHB
Ⅲ. PROPOSED TOPOLOGY OF THE CFPRHB
Ⅳ. SIMULATION
Ⅴ. EXPERIMENTS AND DISCUSSIONS
Ⅵ. CONCLUSION
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