DC/DC and DC/AC Conversions Using the Modified Flyback Topology

• Main Authors: Huan-Tin Lu, 呂煥廷
• Other Authors: York-Yih Sun
• Format: Others
• Language: zh-TW
• Published: 1996
• Online Access: http://ndltd.ncl.edu.tw/handle/15573139987310040591

碩士 === 國立成功大學 === 電機工程研究所 === 84 === In the thesis, DC/DC and DC/AC conversions using the modified topologies are proposed. In the application of DC/DC concersions, incorporating the active-clamp circuitry into flyback topology serves to recycle the transformer leakage and auxiliary inductor''s energy while minimizing switch voltage stress. In the application of DC/AC conversion, a double reversible flyback converter topology is proposed. The advantages of the new converter include high efficiency, reduced size and weight, inherent galvanic isolation.It provides galvanic isolation between DC-source and AC-load without the requirement for a low-frequency transformer or DC/ DC preregulating stage. In order to verify the proposed topologies, two prototypes are implemented and the experiment results agree with the theoretical analysis.