← 返回 JSSC 论文列表JSSC 2008第9期RF & Wireless0.25μm
A Methodology for Fast VSWR Protection Implemented in a Monolithic 3-W 55 PAE RF
提出一种快速VSWR保护方法，应用于单片3W 55% PAE RF CMOS功率放大器。
0.25-μm 2-V CMOS, 3-W output power, 55% PAE, 20:1 load VSWR
CMOS功率放大器负载失配保护电流模式检测环路频率补偿可靠性评估
▸基于电流模式检测和比较技术的闭环保护电路
▸峰值检测和环路频率补偿在同一节点进行
▸设计高效且可靠的最大漏栅应力选择
Abstract
In this paper, the protection of CMOS power ampli-
fiers against load mismatch is addressed. To this purpose, a closed-
loop protection circuit is proposed, which is based on a novel cur-
rent-mode detection and comparison technique. The circuit allows
a faster protection lock-in, by enabling peak detection and loop fre-
quency compensation to be performed at the same circuit node,
thus reducing the number of low-frequency poles and improving
loop bandwidth.
The effectiveness of the method is dem