Title :
A new ZVT PWM converter family: analysis, simulation and experimental results
Author :
Prado, Ricardo Nederson do
Author_Institution :
Dept. of Electron. & Comput., Univ. Federal de Santa Maria, Brazil
Abstract :
This paper proposes a new ZVT PWM converter family, where the voltage across the MOSFET is clamped to the input voltage Vi. The MOSFET turns on under zero voltage and the auxiliary switch turns off under zero current. It is possible to use MOSFET with a smaller R DSon, because the voltage across it is clamped to the Vi . The ZVS is nearly independent from the load range. Principles of operation, analysis and simulation results are presented. Experimental results with a 200 kHz, 310 W ZVT PWM buck converter are provided
Keywords :
insulated gate field effect transistors; power convertors; pulse width modulation; semiconductor switches; switching circuits; 200 kHz; 310 W; MOSFET; ZVT PWM converter family; analysis; auxiliary switch; buck converter; operation; simulation; voltage clamping; zero voltage transition; Analytical models; Inductors; MOSFET circuits; Pulse width modulation converters; Resonance; Stress; Switches; Switching circuits; Switching converters; Zero voltage switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1994. APEC '94. Conference Proceedings 1994., Ninth Annual
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-1456-5
DOI :
10.1109/APEC.1994.316293
