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International Journal of Power Electronics and Drive Systems, Volume 3, Issue 3, 2013, pp. 328-335

Soft switched multi-output PWM DC-DC converter

Sharma R. * 1
Abstract :

In this paper, a new soft switched cell that overcomes most of the drawbacks of the normal "hard switched-pulse width modulation" converter is proposed to contrive a new family of soft switched PWM converters. All of the semiconductor devices in this converter are turned on and off under exact or near zero voltage switching (ZVS) and/or zero current switching (ZCS). No additional voltage and current stresses on the main switch and main diode occur. A push-pull converter equipped with the proposed snubber cell is analyzed in detail. The predicted operation principles and theoretical analysis of the presented converter are verified with a prototype of a 50W PWM push-pull multi-output converter with insulated MOSFET and for regulation of slave outputs magnetic amplifier post regulators are considered as post regulators. Moreover; this multioutput converter has a simple structure, low cost, and ease of control circuitry. © 2013 Institute of Advanced Engineering and Science. All rights reserved.

Keywords : Magnetic amplifier,Pulse width modulation (PWM),Push-pull converter
Subject Area : Electrical and Electronic Engineering Energy Engineering and Power Technology

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