A High-Efficiency 4x45W Car Audio Power Amplifier using Load Current Sharing

C. Mensink, E. van Tuijl, S. Gierkink, F. Mostert, Ronan A.R. van der Zee

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    3 Citations (Scopus)
    7 Downloads (Pure)

    Abstract

    A 4x45W (EIAJ) monolithic car audio power amplifier is presented that achieves a power dissipation decrease of nearly 2x over standard class AB operation by sharing load currents between loudspeakers. Output signals are conditioned using a common-mode control loop to allow switch placement between loads with minimal THD increase. A prototype is realized in a SOI bipolar-CMOS-DMOS process with 0.5μm feature size. Die area is 7.5x4.6mm2. THD+N @(1kHz,10W) is 0.05%.
    Original languageEnglish
    Title of host publicationIEEE Symposium on VLSI Circuits, VLSIC 2010
    Place of PublicationPiscataway, NJ
    PublisherIEEE
    Pages61-62
    Number of pages2
    ISBN (Electronic)978-1-4244-5453-2
    ISBN (Print)978-1-4244-5454-9
    DOIs
    Publication statusPublished - 15 Jun 2010
    Event2010 IEEE Symposium on VLSI Circuits, VLSIC 2010 - Honolulu, United States
    Duration: 16 Jun 201018 Jun 2010

    Publication series

    NameIEEE Symposium on VLSI Circuits (VLSIC)
    PublisherIEEE
    Volume2010
    ISSN (Print)2158-5601
    ISSN (Electronic)2158-5636

    Conference

    Conference2010 IEEE Symposium on VLSI Circuits, VLSIC 2010
    Abbreviated titleVLSIC
    CountryUnited States
    CityHonolulu
    Period16/06/1018/06/10

    Keywords

    • IR-75101
    • METIS-275756
    • class AB
    • Efficiency
    • EWI-19026
    • Audio power amplifier

    Fingerprint Dive into the research topics of 'A High-Efficiency 4x45W Car Audio Power Amplifier using Load Current Sharing'. Together they form a unique fingerprint.

  • Cite this

    Mensink, C., van Tuijl, E., Gierkink, S., Mostert, F., & van der Zee, R. A. R. (2010). A High-Efficiency 4x45W Car Audio Power Amplifier using Load Current Sharing. In IEEE Symposium on VLSI Circuits, VLSIC 2010 (pp. 61-62). (IEEE Symposium on VLSI Circuits (VLSIC); Vol. 2010). Piscataway, NJ: IEEE. https://doi.org/10.1109/VLSIC.2010.5560274