Title :
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
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;
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
DOI :
10.1109/ECTICON.2009.5136968
