摘要
针对电磁继电器在动作时产生的辐射干扰会影响延时电路,采用Ansoft HFSS建立了含有电磁继电器和延时电路PCB的仿真模型,计算了在电磁继电器动作时PCB上主要走线上的感应电压,分析了感应电压对延时时间等参数的影响,评估了电磁继电器机壳对整体电磁兼容性能的影响。该研究成果对提高延时继电器的EMC及可靠性具有一定的意义。
Aiming at the radiated EMI generated by electromagnetic relay could influence the timing circuit when relay＇ s contacts separate. The simulation model with the electromagnetic relay and timing circuit PCB was es- tablished by Ansoft HFSS. The induced voltages of tracks on the PCB was calculated. The influence on timing pa- rameters from the voltages, and on EMC from shielding enclosure of electromagnetic relay was analyzed. The research has some value to improve the EMC and reliability of timing relay.
出处
《低压电器》
北大核心
2009年第11期14-16,51,共4页
Low Voltage Apparatus
基金
总装备部预先研究项目资助(513230502)
