Universal Journal of Electrical and Electronic Engineering Vol. 1(4), pp. 105 - 109
DOI: 10.13189/ujeee.2013.010401
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A New Soft switching Fly Back DC-DC Converter with Minimal Auxiliary Circuit Elements

Majid Delshad ^*, Abbas Narimani
Electrical Department, Khorasgan Branch, Islamic Azad University, Isfahan, Iran

ABSTRACT

A new soft switching pulse-width-modulated (PWM) fly back dc/dc converter with a simple auxiliary circuit is proposed. By adding this auxiliary circuit to the conventional pulse width modulation isolated fly back converter, all power semiconductor devices are soft switched. Therefore switches turn-on under ZCS condition and turn off under zero current zero voltage switching (ZCZVS) condition and diode operates at zero current switching (ZCS) turn-on and turn-off. In addition, the proposed converter frequency is constant and has no additional current stress in the main switch in comparison with conventional ones. Simulation and experimental results justify the theoretical analysis.

KEYWORDS
Pulse-width-modulated (PWM), Auxiliary Circuit, Zero Current Zero Voltage Switching (ZCZVS), Fly Back Converter

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Majid Delshad , Abbas Narimani , "A New Soft switching Fly Back DC-DC Converter with Minimal Auxiliary Circuit Elements ," Universal Journal of Electrical and Electronic Engineering, Vol. 1, No. 4, pp. 105 - 109, 2013. DOI: 10.13189/ujeee.2013.010401.

(b). APA Format:
Majid Delshad , Abbas Narimani (2013). A New Soft switching Fly Back DC-DC Converter with Minimal Auxiliary Circuit Elements . Universal Journal of Electrical and Electronic Engineering, 1(4), 105 - 109. DOI: 10.13189/ujeee.2013.010401.