Broadband PWM power amplifier using Approximate 2DOF Digital Controller

Author

Iwata, Hiroshi ; Higuchi, Kohji ; Nakano, Kazushi ; Chamnongthai, Kosin ; Amorndechaphon, Damrong ; Premrudeepreechacharn, Suttichai

Author_Institution

Univ. of Electro-Commun., Chofu, Japan

Volume

01

fYear

2009

fDate

6-9 May 2009

Firstpage

1

Lastpage

4

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 frequency immunity examination, or a class-D amplifier. 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

PWM power convertors; digital control; digital signal processing chips; power amplifiers; wideband amplifiers; DSP; approximate 2DOF digital controller; broadband PWM power amplifier; power supply testing; Bandwidth; Broadband amplifiers; Digital control; Digital signal processing; Immunity testing; Power amplifiers; Power supplies; Pulse width modulation; Umbilical cable; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, 2009. ECTI-CON 2009. 6th International Conference on

Conference_Location

Pattaya, Chonburi

Print_ISBN

978-1-4244-3387-2

Electronic_ISBN

978-1-4244-3388-9

Type

conf

DOI

10.1109/ECTICON.2009.5136968

Filename

5136968