?? ?????????????:???????????
![](http://n.sinaimg.cn/translate/668/w899h569/20180719/mB6Z-hfnsvzc0682424.jpg)
????:1????????:???????????
2???????
3?????????
4?????????
5??????????
???????????2??????15??????????? ?????:?????:????????????
????????????????? ??????????????? ??????????????
??????????,???,“???,??,???”
??,???,“????”
????????42?????????????,??????????,??“??????”???
![](http://i2.chinanews.com.cn/simg/ypt/2025/250215/5154c29f-72a8-4656-902d-8ea31da84cda_zsite.jpg)
??,???????????“??????”?3910?,???????“PLC????????”?????????30?,???1?????12???????????????????????20?????????,???????
2002????????????????,?????????????????????,2012?????????
“?????????,??,??????????????????8??????”??????????????????????????,????,???,??????????120????????????600????????,??????8??????200?,????????????????????????????,???????????,??????
![](http://i2.chinanews.com.cn/simg/ypt/2025/250215/ac685ecb-915b-4407-acc3-7b6ca0e290d7_zsite.jpg)
??,?????????,??????????????????,?????????????????????????:??,??????????????????,??IGBT?????????
????????????????????,??????????????????,??,“????????,???110V????????……????600V?”
????????,??????,“?????????,??,?????,??????IGBT?????????????”
??????????,??IGBT???????????????????,?????????????????????,?????
????,?????????,???????,???????????????????,?????????????(?)
????:???????????????????????????????????