Feed-Forwarding the Output Voltage to Improve Efficiency for Envelope-Tracking Power Supply Based on a Switch-Linear Hybrid Scheme

Envelope-tracking (ET) technique is one of the most promising methods to improve the efficiency of the modern wireless communication transmitters, which is based on using a high-efficient power supply to provide varying voltage to the RF power amplifier. For this application, this letter adopts an A...

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Veröffentlicht in:	IEEE transactions on power electronics 2011-08, Vol.26 (8), p.2106-2111
Hauptverfasser:	Xiong, Xiaoling, Ruan, Xinbo, Xi, Huan, Ge, Junji
Format:	Artikel
Sprache:	eng
Schlagworte:	AB-type linear amplifier Applied sciences Bandwidth Bandwidths buck converter Buck converters Circuit properties Connection and protection apparatus Converters Current control current control strategy Diodes Electric potential Electric, optical and optoelectronic circuits Electrical engineering. Electrical power engineering Electronic circuits Electronic equipment and fabrication. Passive components, printed wiring boards, connectics Electronics envelope-tracking (ET) technique Exact sciences and technology Gain Linear amplifiers Power electronics, power supplies Power supplies Power supply Pulse width modulation Receivers & amplifiers Switches Switching frequency Switching, multiplexing, switched capacity circuits Voltage Wireless communication Wireless communications
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