Comparision of Voltage Stress Across the MOSFET Switch of a Flyback Converter with Various Snubbers


Authors : Soumya ; A.N Nagashree; R.S Geetha

Volume/Issue : Volume 5 - 2020, Issue 6 - June

Google Scholar : http://bitly.ws/9nMw

Scribd : https://bit.ly/3eK6GwI

DOI : 10.38124/IJISRT20JUN1114

A Flyback converter is a simple switch-mode power supply that can be used to generate a DC output from either an AC or DC input. The converter switch is the most critical part of any converter. The voltage stress across the switch is a major issue as the high voltage spikes occur due to interaction between its output capacitance and the leakage inductance of the transformer. These spikes can be reduced with various snubbers like conventional tertiary winding, Resistor Capacitor and Diode(RCD) snubber, energy regenerative snubber and an active clamp snubber. This paper aims to analyze and compare the voltage stress across the MOSFET switch of Flyback converter with various snubber circuits.

Keywords : Active clamp snubber; Energy regenerative snubber; Flyback converter; RCD snubber; Tertiary winding reset.

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