A switched mode envelope tracker for polar EDGE transmitter

被引：0
|
作者：
Jiang, Xufeng [1 ]
Lopez, Nestor D. [1 ]
Maksimovic, Dragan [1 ]
机构：
[1] Univ Colorado, Colorado Power Elect Ctr, Dept Elect Engn, Boulder, CO 80309 USA
来源：
2006 IEEE POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-7 | 2006年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Design and implementation of an envelope tracking switched-mode power supply (SMPS) for polar EDGE transmitter is described in this paper. The objectives are to achieve high efficiency and high fidelity tracking as well as low interferences according to the EDGE spectral mask restrictions, while providing approximately constant signal propagation delay for easy compensation in the phase-modulation path. Simulation and experimental results are shown for a closed-loop PWM buck converter switching at 4.3MHz, using a compensator that results in the overall Bessel type low-pass transfer function.
引用
收藏
页码：3241 / +
页数：2
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