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Convention Paper

MECC-A Novel Control Method for High End Switching Audio Power Amplification

Authors: Nielsen, Karsten

AES Convention 105 · Paper 4839 · September 1998

Abstract

This paper presents a new control topology that is dedicated to switching power amplifier systems-Multivariable Enhanced Cascade Control (MECC). MECC provides powerful and flexible control over all essential system parameters as distortion, noise, output impedance, frequency response, etc., by simple means, using standard active and passive components. A 400-W 4-- MECC based power amplifier module is shown to implement state-of-the-art performance. Exceptional linearity with below -100 dB (0.001%) pure THD at typical output powers is combined with >120 dBA dynamic range and 93% power stage efficiency.

Details

Published in
AES Convention 105
AES Convention
105
Paper number
4839
Publication date
September 6, 1998
Session subject
Analog Signal Processing for Audio
Affiliation
Bang & Olufsen A/S, Street, Denmark ; Technical University of Denmark, Lyngby, Denmark (See document for exact affiliation information.)
Type
Convention Paper