Title :
Proposal of a new audio amplifier
Author :
Oliveira, D.S., Jr. ; Bissochi, C.A., Jr. ; Vincenzi R.S., F. ; Vieira, J.B., Jr. ; Farias, V.J. ; de Freitas, L.C.
Author_Institution :
Fac. de Engenharia Electrica, Univ. Federal de Uberlandia, Brazil
Abstract :
This paper presents a new audio amplifier that imposes voltage on the speakers. The amplifier topology is based on two current sources that modulate the desired voltage waveform on a capacitor, employing two high frequency switches. The capacitor is connected in parallel to the speakers. The operation principle, control circuits, simulation and experimental results are presented
Keywords :
audio-frequency amplifiers; capacitors; loudspeakers; modulation; switching circuits; amplifier topology; audio amplifier; capacitor; control circuits; current sources; experimental results; high-frequency switches; operation principle; simulation results; speakers; voltage imposition; voltage waveform modulation; Capacitors; Circuit topology; Frequency; Linearity; Operational amplifiers; Phase distortion; Power amplifiers; Proposals; Switches; Voltage;
Conference_Titel :
Power Electronics Congress, 2000. CIEP 2000. VII IEEE International
Conference_Location :
Acapulco
Print_ISBN :
0-7803-6489-9
DOI :
10.1109/CIEP.2000.891435
