Broadband PWM Power amplifier using approximate 2DOF digital controller

Conference proceedings article

Authors/Editors

KOSIN CHAMNONGTHAI

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Publication Details

Author list: Iwata H., Higuchi K., Nakano K., Chamnongthai K., Amorndechaphon D., Premrudeepreechacharn S.

Publisher: Hindawi

Publication year: 2009

Volume number: 1

Start page: 72

End page: 73

Number of pages: 2

ISBN: 9781424433889

ISSN: 0146-9428

eISSN: 1745-4557

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-70350167223&doi=10.1109%2fECTICON.2009.5136968&partnerID=40&md5=7d4d9c385fee9d20171a578690b95b49

Languages: English-Great Britain (EN-GB)

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Abstract

Lately, it is required that the bandwidth of PWM power amplifier is extended. For example, it is in application of the testing power supply of a low ferquency immunity examination, or a class-D ampllifier. In this paper, we show that the bandwidth of PWM power amplifier can be extended by using an Approximate 2DOF Digital Controller. This controller is implemented on a DSP. It is demonstrated from experiments that the bandwidth can be made wider with this controller.

Keywords