基于LM2679多路输出DC-DC变换器  

Multi-output DC-DC Converter Based on LM2679

作　　者：王贤江[1] 石玉[1] 

机构地区：[1]电子科技大学微电子与固体电子学院,四川成都610054

出　　处：《电子科技》2012年第3期78-81,共4页Electronic Science and Technology

摘　　要：发现并证明了在设计多路大电流DC-DC变换器时,如果对每个工作模块进行有效隔离可避免自激情况发生。这个发现可更好地指导设计大电流多路DC-DC变换器。文中实现了一个三路大电流DC-DC变换器,输入电压19～31 V,输出电压15 V/5 A、5 V/3 A、3.3 V/3 A。实验结果证明,文中方法达到了设计要求。It is found and proved that self-excitation may be avoided if each work module is isolated effectively in the design of multi-channel high-current DC-DC converters. This finding will help us design better multi-channel high-current DC-DC converters. This paper implements a three-way high-current DC-DC converter with the input voltage being 19 -31 V, and output voltage 15 V/5 A, 5 V/3 A, and 3.3 V/3 A. The results show that the meth- od proposed in this paper meets the design requirement.

关 键 词：DC-DC变换器 自激 有效隔离 

分 类 号：TN624[电子电信—电路与系统]