Title :
Switching power amplifiers with soft commutation for audio applications
Author :
Oliveira, Ronaldo C. ; Coelho, Ernane A A ; Vieira, Jo?£o B., Jr. ; Freitas, Luiz C. ; Farias, Valdeir J.
Author_Institution :
Centro de Ciencias Exatas e Tecnologia, Univ. Federal de Uberlandia, Brazil
Abstract :
The authors show a switching power amplifier for audio application, which uses PWM techniques. The fundamentals of power switching amplifiers are shown. Simulation results and experimental results for soft commutation are presented. The final goal of this study is to obtain a laboratory prototype of a switching power amplifier with soft commutation, which presents high efficiency and high audio fidelity
Keywords :
Hi-Fi equipment; audio-frequency amplifiers; bridge circuits; commutation; network analysis; power amplifiers; pulse width modulation; switching circuits; AF amplifier; PWM techniques; audio applications; high audio fidelity; high efficiency; soft commutation; switching power amplifier; MOSFETs; Power amplifiers; Power supplies; Pulse amplifiers; Pulse width modulation; Pulsed power supplies; Space vector pulse width modulation; Switches; Switching frequency; Voltage;
Conference_Titel :
Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on
Print_ISBN :
0-7803-3073-0
DOI :
10.1109/ISCAS.1996.540008
