一种新型高温磁反馈电路的设计  

Design of a New High Temperature Magnetic Feedback Circuit

作　　者：丁瀚[1] 刘林[1] 王毅[1] DING Han;LIU Lin;WANG Yi(The 43rd Research Institute of CETC,Hefei 230088,China)

机构地区：[1]中国电子科技集团公司第四十三研究所,安徽合肥230088

出　　处：《电力电子技术》2020年第8期65-66,88,共3页Power Electronics

基　　金：国家科技重大专项(6141B08110506)。

摘　　要：提出一种新型高温磁反馈电路,包括高温反馈脉冲发生电路、高温磁反馈变压器、变压器复位电路、整流滤波电路、取样比较电路。所提磁反馈电路解决了高温环境(185℃)下无合适隔离反馈形式的问题,突破了常规半导体器件175℃结温的限制,具有适用温度范围广、静态电流小、系统响应性能好等特点,可广泛应用于各类高温开关电源。A new magnetic feedback circuit is proposed which is used in high temperature DC/DC converter.This design includes high temperature pulse generator circuit,high temperature magnetic feedback transformer,transformer reset circuit,rectifier and filter circuit,sampling comparison circuit.A solution to magnetic feedback circuit is provided which used in high temperature(185℃)and it also breaks through the limitation of conventional semiconductor junction temperature(175℃)with the advantages of wide applicable temperature,low static current and good system response performance.The design can be widely used in all kinds of high temperature switching power supply.

关 键 词：磁反馈电路 高温 设计 

分 类 号：TN108.7[电子电信—物理电子学]