Title :
Analysis and Derivations for a Family ZVS Converter Based on a New Active Clamp ZVS Cell
Author :
Wu, Xinke ; Zhang, Junming ; Ye, Xin ; Qian, Zhaoming
Author_Institution :
Zhejiang Univ., Hangzhou
Abstract :
A new zero voltage switching (ZVS) cell is proposed based on the active clamping technique. With a small clamping diode in the cell, the voltage ringing caused by the auxiliary inductor and the parasitic capacitance of the diode is eliminated, and therefore, the circulating loss is minimized. A new ZVS boost converter is presented and analyzed in detail to demonstrate the operating principle of the new ZVS cell. A new family of ZVS dc-dc converters can be derived based on the proposed ZVS cell and typical nonisolated dc-dc converters. A 500 W/190 kHz ZVS boost prototype is made to verify the analysis.
Keywords :
DC-DC power convertors; diodes; switching convertors; zero voltage switching; ZVS boost converter; active clamp ZVS cell; clamping diode; dc-dc converter; frequency 190 kHz; power 500 W; zero voltage switching; Circuits; Clamps; Diodes; Inductors; Parasitic capacitance; Rectifiers; Switches; Switching converters; Switching frequency; Zero voltage switching; Active Clamping; Active clamping; Dc-Dc; ZVS; dc–dc; zero voltage switching (ZVS);
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2007.907675
