Implementation of a Novel Cascoded High Efficiency and High Step-Up Converter

• Main Authors: Chih-YiHu, 胡至毅
• Other Authors: Jiann-Fuh Chen
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/44559739618980588685

碩士 === 國立成功大學 === 電機工程學系碩博士班 === 98 === In this thesis, a novel cascoded high efficiency and high step-up converter is proposed. This converter has the advantages of high efficiency and high conversion ratio by using the coupled-inductor and cascoded technique. Additionally, the energy of leakage inductor can be transferred to the output terminal. Therefore the stress of the power devices can be reduced and the whole efficiency can be increased. The analysis of operating principle of the proposed converter is presented in this thesis. Then, the turn-ratio of the coupled-inductor is discussed for voltage gain and efficiency of the proposed converter. Finally, a prototype circuit with input voltage 24 V, output voltage 200 V and output power 100 W is simulated and implemented to verify the performance of the proposed converter.