????: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????,????????????????,?????????????

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

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