AES E-Library

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

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.

Author: Nielsen, Karsten
Affiliations: Bang & Olufsen A/S, Street, Denmark ; Technical University of Denmark, Lyngby, Denmark(See document for exact affiliation information.)
AES Convention:105 (September 1998) Paper Number:4839 Import into BibTeX
Subject:Analog Signal Processing for Audio

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes14)   /pp9798/pp9809/4729.pdf

Start a discussion about this paper!