Title :
A new self-resonant PWM forward converter
Author :
Dias, Célio P. ; Pereira, Adriano A. ; Vieira, João B., Jr. ; Farias, Valdeir J. ; De Freitas, Luiz C.
Author_Institution :
Dept. de Engenharia Electr., Univ. Fed. de Uberlandia, Brazil
Abstract :
This paper presents a forward converter with a nondissipative cell which provides a soft switching converter operation. This approach is based on the principle of the self-resonance, that is: an auxiliary voltage source feeds the resonant circuit, charging a capacitor which provides the condition for the turn off zero voltage switching (ZVS) of the switches. The complete operating principle, relevant equations, simulation and experimental results are presented
Keywords :
PWM power convertors; capacitors; resonant power convertors; switching circuits; ZVS; auxiliary voltage source; capacitor charging; nondissipative cell; operating principle; self-resonance; self-resonant PWM forward converter; simulation; soft switching converter operation; turn off zero voltage switching; Equations; Feeds; Pulse width modulation; Pulse width modulation converters; RLC circuits; Switched capacitor circuits; Switches; Switching circuits; Switching converters; Zero voltage switching;
Conference_Titel :
Industrial Electronics, 1997. ISIE '97., Proceedings of the IEEE International Symposium on
Conference_Location :
Guimaraes
Print_ISBN :
0-7803-3936-3
DOI :
10.1109/ISIE.1997.648970
