高可靠性DC/DC变换器磁隔离反馈设计  

Study and application of magnetic isolation technology for high reliability isolation DC/DC converters

作　　者：高玺 

机构地区：[1]连云港杰瑞电子有限公司,江苏连云港222006

出　　处：《信息技术》2015年第1期16-19,23,共5页Information Technology

基　　金：国家自然科学基金项目(61102105);中国博士后科学基金项目(2008440840);教育部博士点基金项目(20102304120014);黑龙江省自然科学基金项目(F201029)

摘　　要：采用磁性器件隔离并传输反馈信号的输入输出隔离设计方案,是提高隔离式DC/DC变换器可靠性的有效途径之一。文中系统地介绍了实现输入输出磁隔离的基本途径,重点阐述了误差调频(EFM)、误差调宽(EWM)及误差调幅(EAM)三种误差调制信号变压器耦合反馈控制原理。对应用集成化的DC/DC变换器的误差调幅(EAM)磁隔离反馈控制原理进行了较为详细的分析,并给出它的实际应用结果。The I/O magnetic isolation is one of efficient measures to improve the reliability of DC/DC converters. The basic ways in realizing I/O magnetic isolation are described systematically, among which control principles of three error frequency modulated signal transformers coupled feedback are pinpointed, namely EFM feedback control, EWM feedback control and EAM feedback control. An integrated DC/DC converter with EAM magnetic isolated feedback control is analyzed in detail and the practical application results are presented.

关 键 词：DC/DC变换器 磁隔离 误差调幅 变压器耦合 

分 类 号：TM46[电气工程—电器]