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Convention Paper

A Regulated Low-Pass Filter Based on Pulse Width Modulation

Authors: Vestergaard, T.

AES Convention 46 · Paper 923 · September 1973

Abstract

Regulated filters are often used in disk recording systems to prevent cutting of extreme high-frequency transients which may be impossible to play back. The paper describes a system utilizing an active Bessel-type filter in which the resistive components are varied by a pulse-width modulated square-wave signal of supersonic frequency.

Details

Published in
AES Convention 46
AES Convention
46
Paper number
923
Publication date
September 6, 1973
Affiliation
Ortofon Manufacturing A/S, Valby, Denmark (See document for exact affiliation information.)
Type
Convention Paper