Power booster audio amplifier

Author

Prokin, Milan

Author_Institution

Fac. of Electr. Eng., Belgrade Univ., Serbia

Volume

48

Issue

1

fYear

2002

fDate

2/1/2002 12:00:00 AM

Firstpage

23

Lastpage

33

Abstract

A novel power booster amplifier is based on a modified half-bridge topology using separated switches and a floating bridge capacitor. The power booster amplifier provides four times higher peak power at the loudspeaker than the peak power of a class-D amplifier using the same power supply. Total harmonic distortion and amplifier efficiency are similar to a class-D amplifier. A universal integrated circuit supporting Class-D, boost bridge amplifiers and power booster amplifiers is proposed

Keywords

MOS integrated circuits; audio-frequency amplifiers; bridge circuits; field effect transistor switches; harmonic distortion; linear network analysis; loudspeakers; network topology; power amplifiers; power consumption; amplifier efficiency; audio amplifier; boost bridge amplifier; class-D amplifier; floating bridge capacitor; harmonic distortion; loudspeaker; modified half-bridge topology; power booster amplifier; power consumption; universal integrated circuit; Bridge circuits; Circuit topology; Coils; Filters; High power amplifiers; Loudspeakers; Power amplifiers; Pulse amplifiers; Pulse width modulation; Switches;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/TCE.2002.1010088

Filename

1010088