Self-oscillating modulators for direct energy conversion audio power amplifiers

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

    Abstract

    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 Sept 20054 Sept 2005
    Conference number: 27
    http://www.aes.org/events/27/

    Conference

    Conference27th International AES Conference
    Number27
    Country/TerritoryDenmark
    CityHillerød
    Period02/09/200504/09/2005
    Internet address

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