Multi-Loop Control for Quasi-Resonant Converters

被引：11
|
作者：
Ridley, Raymond B. [1 ]
Tabisz, Wojciech A. [1 ]
Lee, Fred C. Y. [1 ]
Vorperian, Vatche [1 ]
机构：
[1] Virginia Polytech Inst & State Univ, Bradley Dept Elect Engn, Virginia Power Elect Ctr, Blacksburg, VA 24061 USA
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 1991年 / 6卷 / 01期
关键词：
D O I：
10.1109/63.65001
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, multi-loop control scheme for quasi-resonant converters is described. Similar to current-mode control for PWM converters, this control offers excellent transient response and replaces the voltage-controlled oscillator with a simple comparator. A signal proportional to the output-inductor current is compared with an error voltage signal to modulate the switching frequency. The control can be applied to either zero-voltage-switched or zero-current-switched quasi-resonant converters. Computer simulation is used to demonstrate the effectiveness of the control method applied to a zero-current-switched buck quasi-resonant converter. Experimental results are presented for zero-current flyback and zero-voltage buck quasi-resonant converters, operating at up to 7 MHz.
引用
收藏
页码：28 / 38
页数：11
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