ANALYSIS AND OPTIMIZATION OF A NONDISSIPATIVE LC TURN-OFF SNUBBER.

被引：39

作者：

Ninomiya, Tamotsu ^{[1
]}

Tanaka, Tetsuro ^{[1
]}

Harada, Koosuke ^{[1
]}

机构：

[1] Kyushu Univ, Fukuoka, Jpn, Kyushu Univ, Fukuoka, Jpn

来源：

IEEE Transactions on Power Electronics | 1988年 / 3卷 / 02期

关键词：

ELECTRIC CONVERTERS; POWER TYPE - Components - ELECTRIC MEASUREMENTS - ELECTRIC NETWORKS - Equivalent Circuits - ELECTRIC TRANSFORMERS - Measurements;

D O I：

10.1109/63.4344

中图分类号：

学科分类号：

摘要：

A nondissipative LC turn-off snubber is used to reduce the voltage stress on a switching transistor, which is caused by the energy stored in the transformer leakage inductance. A detailed analysis of the fundamental characteristics of a buck-boost converter with an LC snubber is given, clarifying the effect of the snubber capacitance. In particular, it is found that the transformer current increases with the snubber capacitance. The transistor surge voltage and power loss are evaluated, and the optimum value of the snubber capacitance is derived. The most effective value of the snubber inductance is also discussed.

引用

页码：147 / 156