Feedforward control of DC-DC PWM boost converter

被引：74

作者：

Kazimierczuk, MK

Massarini, A

机构：

[1] UNIV MODENA,DEPT SCI & ENGN,I-41100 MODENA,ITALY

[2] WRIGHT STATE UNIV,DEPT ELECT ENGN,DAYTON,OH 45435

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS | 1997年 / 44卷 / 02期

关键词：

D O I：

10.1109/81.554332

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：

A new feedforward control circuit suitable for applications in the de-de pulsewidth modulated (PWM) boost converter operated in the continuous conduction mode (CCM) is proposed, Its principle of operation is described, analyzed for steady state, and experimentally verified, The peak value of the sawtooth voltage at the noninverting input of a PWM modulator is held constant and the voltage at the inverting input of the PWM modulator varies in proportion to the converter de input voltage, As a result, the complement of the on-duty cycle (1 - D) is proportional to the de converter input voltage, yielding the converter output voltage theoretically independent of the converter input voltage, The circuit is very simple and significantly improves line regulation of the output voltage, The measured open-loop line regulation at fixed loads was less than 5% for the converter de input voltage change by 400%. The load regulation was also good even without a negative feedback loop.

引用

页码：143 / 148

页数：6