Constant-Frequency Control of Quasi-Resonant Converters

被引：69
|
作者：
Maksimovic, Dragan [1 ]
Cuk, Slobodan [2 ]
机构：
[1] Univ Belgrade, Fac Elect Engn, Belgrade 11001, Yugoslavia
[2] CALTECH, Power Elect Grp, Pasadena, CA 91125 USA
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 1991年 / 6卷 / 01期
关键词：
D O I：
10.1109/63.65012
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：
An additional independent control needed to eliminate the undesirable variable switching frequency of quasi-resonant converters can be obtained if the output rectifier is replaced by an active switch. The concept is applicable to all classes of quasi-resonant converters. It is demonstrated that in addition to operation at constant switching frequency, selected classes of constant-frequency quasi-resonant (CF-QR) topologies feature extended range of accessible conversion ratios and load currents. A practical example of a constant-frequency multi-resonant (CF-MR) buck converter operating at 2 MHz is described.
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页码：141 / 150
页数：10
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