Feedforward pulse width modulators for switching power converters

被引：64

作者：

Arbetter, B

Maksimovic, D

机构：

[1] Department of Electrical and Computer Engineering, University of Colorado, Boulder

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 1997年 / 12卷 / 02期

基金：

美国国家科学基金会;

关键词：

pulse width modulation; switching power converters;

D O I：

10.1109/63.558767

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 pulse width modulators (PWM's) that employ feedforward compensation to improve steady-state and dynamic responses of power converters. It is shown how ideal feedforward PWM's (FF-PWM's) can be constructed for all duty-ratio controlled switch-mode power converters operating in the continuous conduction mode. A converter with FF-PWM behaves at low frequencies as a linear power amplifier with constant gain independent of operating conditions. The proposed FF-PWM can be easily implemented using the same building blocks found in conventional PWM controllers. Experimental and simulation examples are included to illustrate applications of the FF-PWM.

引用

页码：361 / 368

页数：8