Title :
A novel zero-voltage and zero-current-switching full-bridge PWM converter
Author :
Feng, Xu ; Dianguo, Xu ; YuXiu, Liu
Author_Institution :
Dept. of Electr. Eng., Harbin Inst. of Technol., China
Abstract :
A novel zero voltage and zero current switching full bridge pulse width modulation (ZVZCS-FB-PWM) converter is proposed and analyzed. An auxiliary circuit, which consists of a diode and auxiliary winding coupled with output inductor, are added to provide zero current switching (ZCS) conditions. The ZCS of lagging-leg switches is achieved by resetting the primary current with induced EMF of auxiliary winding during the freewheeling period. Many advantages including low current pressure, simple circuit topology and low cost make the new converter very attractive for high power applications. The operation, analysis and design considerations are illustrated and verified on a 3 kW 100 kHz IGBT based experimental circuit.
Keywords :
PWM power convertors; bridge circuits; network topology; switching convertors; windings; 100 kHz; 3 kW; IGBT based experimental circuit; PWM converter; ZCS converter; ZVS converter; auxiliary winding; circuit topology; diode; electromotive force; freewheeling period; full bridge converter; induced EMF; inductor; insulated gate bipolar transistors; pulse width modulation converter; zero-voltage and zero-current switching converter; Bridge circuits; Coupling circuits; Diodes; Inductors; Pulse width modulation; Pulse width modulation converters; Switches; Switching converters; Zero current switching; Zero voltage switching;
Conference_Titel :
Industrial Electronics Society, 2003. IECON '03. The 29th Annual Conference of the IEEE
Print_ISBN :
0-7803-7906-3
DOI :
10.1109/IECON.2003.1280011
