سال انتشار: ۱۳۸۶

محل انتشار: پانزدهیمن کنفرانس مهندسی برق ایران

تعداد صفحات: ۶

نویسنده(ها):

Ehsan Adib – Isfahan University of Technology
Hosein Farzaneh-fard – Isfahan University of Technology

چکیده:

In this paper a new auxiliary circuit isintroduced for buck, buck-boost, forward and flybackconverters. This auxiliary circuit provides zero oltage
switching condition for the main switch and diodewhile providing zero current switching condition forthe auxiliary switch and diodes. The proposed ZVT PWM buck converter is analyzed and various converter operating modes are presented. A very simple design method for auxiliary circuit is discussed. Experimental results of ZVT buck converter from a 140 W laboratory prototype switching at 120 KHz are presented. Also the
experimental results of a ZVT flyback converter are shown.