Title :
A Zero-Current-Transition Converter with Reduced Auxiliary Circuit Losses
Author :
Das, Pritam ; Moschopoulo, Gerry
Author_Institution :
Univ. of Western Ontario, London, Ont.
Abstract :
A new zero-current switching (ZCS) pulse-width modulated (PWM) boost converter is proposed in the paper. The main power switch in the proposed converter can operate with ZCS due to an active auxiliary circuit that diverts current away from the switch just before it is turned off. The circuit allows the converter to operate with ZCS without the disadvantages typically found in other, previously proposed ZCS PWM converters such as increased switch stresses and excessive circulating current. In the paper, the operation of the proposed converter is explained in detail and general design guidelines are given. The feasibility of the new converter is confirmed with results obtained from an experimental prototype
Keywords :
PWM power convertors; losses; switching convertors; zero current switching; ZCS PWM boost converter; auxiliary circuit losses reduction; circulating current; power switch; switch stresses; zero-current switching pulse-width modulated boost converter; zero-current-transition converter; Electromagnetic interference; Inductors; Insulated gate bipolar transistors; Pulse width modulation; Pulse width modulation converters; Switches; Switching circuits; Switching converters; Voltage; Zero current switching;
Conference_Titel :
Telecommunications Conference, 2005. INTELEC '05. Twenty-Seventh International
Conference_Location :
Berlin
Print_ISBN :
978-3-8007-2905-0
DOI :
10.1109/INTLEC.2005.335157
