A Flexible Waveform Power Amplifier Based on Switch-Linear Hybrid Scheme

Author

Liu, Xiaodong ; Liu, Sucheng ; Cheng, Mengzeng ; Jiang, Kekang

Author_Institution

Anhui Univ. of Technol., Maanshan

fYear

2007

fDate

23-25 May 2007

Firstpage

1569

Lastpage

1572

Abstract

Combining linear power amplifier with switch-mode power amplifier in a special manner, a novel switch-linear hybrid flexible waveform power amplifier ( SLH-FWPA) is proposed in this paper. The proposed amplifier employed a linear amplification unit as output stage to achieve high fidelity, and adopting a switch filter unit as the power supply of linear output stage to improve the efficiency. Small signal models of SLH-FWPA are derived and Orcad/Pspice simulation are also done in this paper. Theoretical analysis and simulation results verify the validity of SLH-FWPA.

Keywords

power amplifiers; switched mode power supplies; Orcad/Pspice simulation; SLH-FWPA; flexible waveform power amplifier; linear amplification unit; linear power amplifier; switch filter unit; switch-linear hybrid scheme; switch-mode power amplifier; Frequency conversion; High power amplifiers; Operational amplifiers; Power amplifiers; Power conversion; Power supplies; Switches; Testing; Topology; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications, 2007. ICIEA 2007. 2nd IEEE Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4244-0737-8

Electronic_ISBN

978-1-4244-0737-8

Type

conf

DOI

10.1109/ICIEA.2007.4318672

Filename

4318672