DSP-based fully digital current control for power amplifiers

Author

Zhou, Xigen ; Zhao, Zhengming ; Liu, Yunfeng ; Qian, Chang

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing, China

Volume

1

fYear

2000

fDate

2000

Firstpage

267

Abstract

This paper presents a new current control scheme for power amplifiers (PA) with fully digital implementation. It overcomes the bottleneck of limited PA´s output power with great flexibility. The new control strategy-modified predictive control and multilevel topology guarantee high-dynamic and low-harmonics performance. Simulation results show the promising feature of the control strategy. The experimental results confirm the performance of the proposed PA scheme with high power and high fidelity

Keywords

PWM invertors; digital control; digital signal processing chips; electric current control; power amplifiers; predictive control; DSP-based fully digital current control; high-dynamic performance; low-harmonics performance; modified predictive control; multilevel topology; power amplifiers; pulsewidth modulation inverter; switching power amplifiers; variable structure control; Current control; Digital signal processing; Electric variables control; Filters; Power amplifiers; Predictive control; Pulse amplifiers; Pulse width modulation; Pulse width modulation inverters; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference, 2000. Proceedings. IPEMC 2000. The Third International

Conference_Location

Beijing

Print_ISBN

7-80003-464-X

Type

conf

DOI

10.1109/IPEMC.2000.885369

Filename

885369