?????????????:???????????
??????????????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?,????????????????????????????????,?????????
????,???,?????????????????,????????????????????????????,??????????????(???????????)
?????????:?????????????????
??