???????????:?????????????

????:????wx:??????????

???????????2??????????15??? ????????:????????:??????????????

???????? ????? ?????????

????????????,????,“???????????,??,?????????”

???????????????????,???,“?????”

????????????????????42?????,???????????,???????“??????????????????”??

??????? ???

????????????????????????????,??????“???????”????3910???,????????“PLC???”????30??,???????????????1?????12???????????20???????????,??

2002?,???????????,2012??????????

“???????,???,?????????????8???????”?????????????,?,??,?????????????????120???????????????600????,????????8?????????200???,???????????????????,?????,???????

????????????? ??????????

??,????????,?????????????????,????????????:???????????,?,?????????IGBT???????

??,???????????????,??,“????????,??110V??????????……??600V?”

?????????,???,“?????????,??????,?????????????????????????????,????????????IGBT???”

??????????????????????????????????,????????IGBT????????????????,?????????????,???????

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

???:???