Title :
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
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;
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
DOI :
10.1109/ICIEA.2007.4318672
