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http://dx.doi.org/10.5370/JEET.2018.13.1.256

A Novel Soft Switching PWM·PFC AC·DC Boost Converter  

Sahin, Yakup (Dept. of Electrical and Electronic Engineering, Bitlis Eren University)
Publication Information
Journal of Electrical Engineering and Technology / v.13, no.1, 2018 , pp. 256-262 More about this Journal
Abstract
This study introduces a novel Soft Switching (SS) Pulse Width Modulated (PWM) AC-DC boost converter. In the proposed converter, the main switch is turned on with Zero Voltage Transition (ZVT) and turned off with Zero Current Transition (ZCT). The main diode is turned on with Zero Voltage Switching (ZVS) and turned off with Zero Current Switching (ZCS). The auxiliary switch is turned on and off with ZCS. All auxiliary semiconductor devices are turned on and off with SS. There is no extra current or voltage stress on the main semiconductor devices. The majority of switching energies are transferred to the output by auxiliary transformer. Thus, the current stress of auxiliary switch is significantly reduced. Besides, the proposed converter has simple structure and ease of control due to common ground. The theoretical analysis of the proposed converter is verified by a prototype with 100 kHz switching frequency and 500 W output power. Furthermore, the efficiency of the proposed converter is 98.9% at nominal output power.
Keywords
Soft switching; Power factor correction; Zero voltage transition; Zero current transition;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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