Title :
Magnetizing-current-assisted wide ZVS range isolated DC-DC converters
Author :
Guilherme da Rocha, Otoniel ; Illa Font, Carlos Henrique ; Agostini, Eloi
Author_Institution :
Dept. of Electron. Eng., Fed. Univ. of Technol. - Parana, Ponta Grossa, Brazil
Abstract :
This paper presents the analysis of an asymmetrical half-bridge (ASHB-PWM) DC-DC converter with wide ZVS range. The wide ZVS range is achieved with the designing of a desired magnetizing inductance, which value does not significantly increase conduction losses in the primary side. The proposal advantage is low cost, since any additional passive or active component is needed. The theoretical analysis, the simulation results and experimental results from a 500 W converter are presented. The converter was designed for a 300 V of input voltage, 60 V of output voltage and switching frequency of 50 kHz.
Keywords :
DC-DC power convertors; PWM power convertors; zero voltage switching; ASHB-PWM converter; active component; asymmetrical half-bridge DC-DC converter; conduction loss; frequency 50 kHz; isolated DC-DC converters; magnetizing current; magnetizing inductance; passive component; power 500 W; primary side; switching frequency; voltage 300 V; voltage 60 V; wide ZVS range; Equations; Inductance; Mathematical model; Power generation; Prototypes; Switching frequency; Zero voltage switching; High efficiency; Isolated converter; Magnetizing inductance; PWM DC-DC converter; Wide ZVS range;
Conference_Titel :
Power Electronics Conference (COBEP), 2013 Brazilian
Conference_Location :
Gramado
DOI :
10.1109/COBEP.2013.6785121
