????:1???????:??????????

2??????????

3????????

4?????????

5???????

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

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

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

?????????,????,“????????????????????”

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

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

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

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

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

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

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

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

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

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

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

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