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Convention Paper

High Efficiency Class A Audio Power Amplifier (Class A+ Amplifier)

Authors: Sano, Nobuya; Hayashi, Tomoyuki; Ogawa, Hidekazu

AES Convention 61 · Paper 1382 · November 1978

Abstract

This power amplifier consists of a class A and class B amplifier stages. The class A stage is powered by a low voltage floating power supply, which is driven by the class B stage in accordance with the output voltage to prevent the class A stage from saturation. The overall power dissipation is reduced to a quarter of that of an ordinary class A amplifier.

Details

Published in
AES Convention 61
AES Convention
61
Paper number
1382
Publication date
November 6, 1978
Affiliation
Stereo Department, Matsushita Electric Industrial Co., Ltd., Moriguchi, Osaka, Japan (See document for exact affiliation information.)
Type
Convention Paper