摘要
以电磁兼容问题频发的BOOST电路为例,建立了其电磁辐射的双环模型,由此模型分析计算了其电磁辐射场,进而给出了其近场的解析解,并利用Ansoft软件对该模型进行了仿真计算,进而对比了加装屏蔽前后的电路近场辐射。为开关电源的屏蔽设计提供了理论和实践基础。
Taking BOOST circuit which frequently causes EMC problems as an example,a double-circle model of the electromagnetic radiation was established to analyze BOOST circuit＇ s electromagnetic radiation field and to present an analytic solution;Ansoft software was used to simulate and calculate the model and then the cir- cuit＇ s near field radiation with shield was compared with that without a shield. This research can provide both theoretical and practical foundation for shield design of the switched-mode power supply.
出处
《化工自动化及仪表》
CAS
2013年第10期1285-1287,1299,共4页
Control and Instruments in Chemical Industry
基金
黑龙江省教育厅科技攻关项目(12531062)
关键词
开关电源
电磁兼容
电磁辐射场
switched-mode power supply,EMC,electromagnetic radiation field
