Tracking power converter for supply modulation of RF power amplifiers

被引：0
|
作者：
Midya, P [1 ]
Haddad, K [1 ]
Connell, L [1 ]
Bergstedt, S [1 ]
Roeckner, B [1 ]
机构：
[1] Motorola Labs, IC Design Technol Lab, Schaumburg, IL 60196 USA
来源：
PESC 2001: 32ND ANNUAL POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-4, CONFERENCE PROCEEDINGS | 2001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：
This paper describes a tracking power converter and the controller IC for its implementation. The tracking power converter is used for supply modulation of a linear RF power amplifier. Supply modulation improves RF power amplifier efficiency for variable envelope RF signals. This system maximizes tracking bandwidth (similar to160kHz), ripple suppression (similar to70dB) and power conversion efficiency (similar to92%) with a relatively low switching frequency (800kHz).
引用
收藏
页码：1540 / 1545
页数：6
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