SPICE Analysis of RL and RC Snubber Circuits for Synchronous Buck DC-DC Converters

被引：0
|
作者：
Blecic, Raul [1 ,2 ]
Gillon, Renaud [3 ]
Nauwelaers, Bart [2 ]
Baric, Adrijan [1 ]
机构：
[1] Univ Zagreb, Fac Elect Engn & Comp, Unska 3, Zagreb 10000, Croatia
[2] Katholieke Univ Leuven, ESAT TELEMIC, B-3001 Leuven, Belgium
[3] ON Semicond, B-9700 Oudenaarde, Belgium
来源：
2015 8TH INTERNATIONAL CONVENTION ON INFORMATION AND COMMUNICATION TECHNOLOGY, ELECTRONICS AND MICROELECTRONICS (MIPRO) | 2015年
关键词：
conversion efficiency; electromagnetic (EM) interference; radiated emissions; reliability; switching-mode power supply (SMPS);
D O I：
暂无
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：
Operation of a 1.3-MHz, 12-to-1.2 V, 20-A synchronous buck converter is analyzed by SPICE simulations. Special attention is given to two resonances formed by the capacitance of FETs in the off-state and the total inductance of the input decoupling network. The resonances are the main source of the broadband electromagnetic (EM) interference. Two most common circuit level methods for reducing the EM interference, an RL snubber circuit and an RC snubber circuit, are analyzed and compared in terms of their impact on the radiation characteristics, efficiency and reliability of the analyzed synchronous buck converter.
引用
收藏
页码：91 / 97
页数：7
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