电工技术学报2011，Vol.26Issue(9)：151-159,9.
高速电压随动电源的发展及面临的挑战
Development and Design Challenges of High Speed Envelope Tracking Power Supply
希尽焕 1熊小玲 1阮新波1
作者信息
- 1. 南京航空航天大学航空电源航空科技重点实验室,南京210016
- 折叠
摘要
Abstract
In 3G communication system,the input radio frequency signal to the power amplifier characterizes of high bandwidth and non-constant envelope.Under this condition,constant amplitude power supply to the power amplifier will lead to significant power loss.Therefore,in order to enhance efficient operation,high speed envelope tracking power supply will be used in the future.In this paper,the concept and application backgrounds of high speed envelope tracking power supply are introduced.Meanwhile based on the classification and generalization of all the existent schemes,the advantages,application areas and the shortages when directly used in high speed envelope tracking occasions are discussed.Finally,it is pointed out that the proper system structure,the design of high frequency and high efficiency driving circuit,and the considerations on parasitic effects are the most important challenges in the proposed area.关键词
3G通信/功率放大器/EER技术/ET技术Key words
3G communication system/power amplifier/envelope elimination and restoration technique/envelope tracking technique分类
信息技术与安全科学引用本文复制引用
希尽焕,熊小玲,阮新波..高速电压随动电源的发展及面临的挑战[J].电工技术学报,2011,26(9):151-159,9.
