Title :
A zero-voltage switched PWM boost converter with an energy feedforward auxiliary circuit
Author :
Moschopoulos, Gerry ; Jain, Praveen ; Liu, Yan-Fei ; Joos, Geza
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada
Abstract :
A zero-voltage switched (ZVS) PWM boost converter with an energy feedforward auxiliary circuit is proposed in this paper. This converter can be operated with PWM control because ZVS operation is achieved with an auxiliary resonant circuit that has few switching losses and handles much less power than the main power circuit as it is activated for only a small fraction of the switching cycle. Moreover, peak switch stresses are lower than those found in other proposed converters because some of the energy circulating in the auxiliary circuit is fed to the load. In the paper, the modes of converter operation are explained and analyzed, design guidelines are given, and experimental results are presented
Keywords :
DC-DC power convertors; PWM power convertors; feedforward; losses; switching circuits; ZVS PWM boost converter; auxiliary resonant circuit; converter operation modes; design guidelines; energy feedforward auxiliary circuit; peak switch stresses; switching losses; zero-voltage switching; Guidelines; Pulse width modulation; Pulse width modulation converters; RLC circuits; Stress; Switches; Switching circuits; Switching converters; Switching loss; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 1996. PESC '96 Record., 27th Annual IEEE
Conference_Location :
Baveno
Print_ISBN :
0-7803-3500-7
DOI :
10.1109/PESC.1996.548562
