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Convention Paper

A Novel High-Efficiency and Wide-Bandwidth Power Amplifier by Analog Power Amplifier and High-Dynamic Switching Power Supplies

Authors: Jeong, Jae Hoon

AES Convention 104 · Paper 4715 · May 1998

Abstract

A high power Class A amplifier dissipates a lot of power in spite of high fidelity. A Class D switching power amplifier has high efficiency and poor dynamics by low bandwidth. The previous paper proposes a high efficiency Class A power amplifier with the Class D switching power amplifier and floating power supplies. This paper proposes a novel high efficiency Class A amplifier accompanied to the high dynamic switching power supply and without floating power supplies. This amplifier has the merits of both Class A and Class D. The efficiency is seventy-four percent at full power rating. The distortion is about the same as that of Class A amplifiers. The -3dB bandwidth is from DC to 100 kHz.

Details

Published in
AES Convention 104
AES Convention
104
Paper number
4715
Publication date
May 6, 1998
Session subject
Audio Electronics
Affiliation
Seoul Telecommunications O&M Research Center, Seoul, Korea (See document for exact affiliation information.)
Type
Convention Paper