电子器件
電子器件
전자기건
JOURNAL OF ELECTRON DEVICES
2014年
1期
22-25
,共4页
电磁兼容%电机软起动器%有限元%DSP芯片%PCB
電磁兼容%電機軟起動器%有限元%DSP芯片%PCB
전자겸용%전궤연기동기%유한원%DSP심편%PCB
EMC%motor soft starter%FEM%DSP chip%PCB
电机软起动控制模块PCB板载DSP芯片并运行于300 MHz以内的高频和2 ns以内的信号边沿速率。为解决由于高边沿速率带来的电磁兼容性问题,应用有限元法分别对自动布线和电磁兼容手工布线后的软启动控制模块PCB进行仿真,得到300 MHz、900 MHz和1.5 GHz下PCB的近场辐射值。仿真表明,PCB手工布线后其电场和磁场近场辐射在各频点下的最大值分别有42%~81%和41%~84%的改善。说明通过电磁兼容手工布线提高了PCB的电磁兼容性。
電機軟起動控製模塊PCB闆載DSP芯片併運行于300 MHz以內的高頻和2 ns以內的信號邊沿速率。為解決由于高邊沿速率帶來的電磁兼容性問題,應用有限元法分彆對自動佈線和電磁兼容手工佈線後的軟啟動控製模塊PCB進行倣真,得到300 MHz、900 MHz和1.5 GHz下PCB的近場輻射值。倣真錶明,PCB手工佈線後其電場和磁場近場輻射在各頻點下的最大值分彆有42%~81%和41%~84%的改善。說明通過電磁兼容手工佈線提高瞭PCB的電磁兼容性。
전궤연기동공제모괴PCB판재DSP심편병운행우300 MHz이내적고빈화2 ns이내적신호변연속솔。위해결유우고변연속솔대래적전자겸용성문제,응용유한원법분별대자동포선화전자겸용수공포선후적연계동공제모괴PCB진행방진,득도300 MHz、900 MHz화1.5 GHz하PCB적근장복사치。방진표명,PCB수공포선후기전장화자장근장복사재각빈점하적최대치분별유42%~81%화41%~84%적개선。설명통과전자겸용수공포선제고료PCB적전자겸용성。
The DSP chip on the motor soft starter control module PCB is working above the frequency of 300 MHz and under the edge rate of 2 ns. Using the FEM to get the near-field simulation results before and after the EMC manual layout of the motor soft stater control module PCB under the frequency of 300 MHz and 900 MHz and 1 . 5 GHz to solve the EMC problem coursed by high edge rate. Simulation results show that the maxim value of the Electric and magnetic near field radiation decrease by 42% to 81% and 41% to 84% respectively after the EMC manual layout is done. It indicates that the manual layout improves the EMC of PCB.
