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AES Amsterdam 2008
Master Class M4

Tuesday, May 20, 14:30 — 16:30
M4 - A UNIVERSAL GRAMMAR OF CLASS D AUDIO AMPLIFICATION

Presenter:
Bruno Putzeys, Hypex Electronics and Grimm Audio - The Netherlands

Abstract:
At first sight, class D amplifiers exhibit a baffling array of disjoint design philosophies and topologies. Yet, all of these can be seen as permutations of the same basic structure. This Master Class explores the “universal grammar of class D audio amplification:" the building blocks and design choices underlying all class D designs, like power stage topology, loop control strategy, and modulation method. This generalized view makes clear how certain designs turn out to be uncontroversially suboptimal choices while some other apparently meaningless rearrangements like localized error feedback can be demonstrated to have real performance advantages.


Last Updated: 20080613, tendeloo