Title :
New Zero Voltage Transition PWM Converters
Author :
Adib, Ehsan ; Farzaneh-Fard, Hosein
Author_Institution :
Isfahan Univ., Isfahan
Abstract :
In this paper a new auxiliary circuit is introduced for buck, buck-boost, forward and flyback converters. This auxiliary circuit provides zero voltage switching condition for the main switch and diode while providing zero current switching condition for the 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 simulation results of a ZVT flyback converter are shown.
Keywords :
PWM power convertors; switching convertors; zero current switching; zero voltage switching; ZVT PWM buck converter; auxiliary circuit; auxiliary diodes; buck-boost converters; flyback converters; forward converters; frequency 120 kHz; power 140 W; zero current switching condition; zero voltage switching condition; zero voltage transition PWM; Buck converters; Design methodology; Diodes; Laboratories; Pulse width modulation; Pulse width modulation converters; Switches; Switching circuits; Zero current switching; Zero voltage switching;
Conference_Titel :
Industrial Technology, 2006. ICIT 2006. IEEE International Conference on
Conference_Location :
Mumbai
Print_ISBN :
1-4244-0726-5
Electronic_ISBN :
1-4244-0726-5
DOI :
10.1109/ICIT.2006.372360
