Open-loop peak voltage feedforward control of PWM buck converter

被引：37

作者：

Kazimierczuk, MK ^{[1
]}

Edström, AJ ^{[1
]}

机构：

[1] Wright State Univ, Dept Elect Engn, Dayton, OH 45435 USA

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS | 2000年 / 47卷 / 05期

关键词：

audio susceptibility; averaged small-signal analysis; dc analysis; feedforward control; PWM buck converters;

D O I：

10.1109/81.847879

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：

DC and small-signal analyses are given for an open-loop buck pulse-width modulated (PWM) dc-dc converter with peak-voltage-modulation (PVM) feedforward control. A dc model is used to derive the de input-to-output voltage transfer function taking into account parasitic components, such as the MOSFET on-resistance, diode forward resistance, and diode offset voltage. A small-signal model is used to derive the audio susceptibility and the input impedance. It is shown that ideally the audio susceptibility is zero and the input impedance is frequency independent and negative for the buck converter with PVM feedforward control.

引用

页码：740 / 746

页数：7

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