Study and implementation of the high step-up converters

Autor: Wen-Cheng Fu, 傅文成
Rok vydání: 2007
Druh dokumentu: 學位論文 ; thesis
Popis: 96
This thesis presents a double-flyback converter with active clamp technigue and a double boost-flyback converter. In the proposed converter, the active-clamp circuit is used to eliminate voltage spike, achieve zero voltage switching (ZVS), and to improve the conversion efficiency. The integrated double boost-flyback converter uses coupled-inductor technigue to achieve high step-up voltage. The voltage gain and efficiency at steady state are derived using the principles of inductor volt-second balance. Finally, the operating principles, theoretical analysis and design methodology of the proposed converters are presented and the experimental results are provided to verify the system performance.
Databáze: Networked Digital Library of Theses & Dissertations