Multilevel Power Supply for High Efficiency RF Amplifiers
作者： M. Vasic , O. Garcia , J.A. Oliver , P. Alou , D. Diaz
DOI: 10.1109/APEC.2009.4802821
关键词: Electronic engineering 、 Amplifier 、 Power supply rejection ratio 、 Direct-coupled amplifier 、 Power bandwidth 、 Power-added efficiency 、 RF power amplifier 、 Electrical engineering 、 Engineering 、 Linear amplifier 、 Instrumentation amplifier
摘要: In radio systems linear power amplifiers (class A, B or AB) are usually used as a solution for the amplifier stage. These have high linearity, but suffer from low efficiency when transmitted signal has peak-to-average ratio. The Kahn envelope elimination and restoration (EER) technique is to enhance of RF transmitters, by combining highly efficient, nonlinear D E) with efficient in order obtain amplifier. This paper presents based on combination multilevel converter regulator. proposed can reproduce any maximal spectral component 2 MHz give instantaneous 50 W. measurements show that signals average value transmitted, it up 15% higher than regulator conventional solution. Additionally, algorithm selection voltage levels explained, well.
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