Self-oscillating modulators for direct energy conversion audio power amplifiers

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


Direct energy conversion audio power amplifier represents total integration of switching-mode power supply and Class D audio power amplifier into one compact stage, achieving high efficiency, high level of integration, low component count and eventually low cost. This paper presents how self-oscillating modulators can be used with the direct switching-mode audio power amplifier to improve its performance by providing fast hysteretic control with high power supply rejection ratio, open-loop stability and high bandwidth. Its operation is thoroughly analyzed and experimental results from prototype amplifier are presented.
Original languageEnglish
Title of host publication27th International AES Conference on Efficient Audio Power AMplification
Publication date2005
Publication statusPublished - 2005
Event27th International AES Conference - Hillerød, Denmark
Duration: 2 Sep 20054 Sep 2005
Conference number: 27


Conference27th International AES Conference
Internet address

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