IGBT induction kutenthetsera magetsi muzitsulo zozimitsa ndodo ndi kutenthetsa mzere wopangira ndizokhudzidwa kwambiri

Chitsulo chozimitsira ndodo ndi kutenthetsa mzere wopangira umatenga zida zamagetsi za IGBT ndiukadaulo wapadera wosinthira pafupipafupi ndiukadaulo wapamwamba. IGBT ndi chipangizo chopangidwa ndi MOSFET ndi bipolar transistor. Kulowetsa kwake ndi MOSFET kwambiri, ndipo kutulutsa kwake ndi PNP transistor kwambiri. Zimaphatikiza ubwino wa zipangizo ziwirizi ndipo zimakhala ndi ubwino wa mphamvu yotsika pagalimoto komanso kuthamanga kwachangu. Chipangizo cha bipolar chimakhala ndi zabwino zochepetsera kuthamanga kwa machulukitsidwe ndi mphamvu yayikulu, potero zimawongolera magwiridwe antchito ndi kutentha kwa chipangizocho.

Mphamvu yotulutsa mphamvu yamagetsi yapakatikati yapakatikati iyenera kukhala yokhazikika kwambiri. Choncho, m’pofunika kusintha mphamvu magetsi voteji mu chatsekedwa kuzungulira kusunga linanena bungwe voteji mosalekeza pansi pa zonse katundu ndi palibe katundu. Zida zotenthetsera zopangira zida zimagwiritsa ntchito thyristor ngati mphamvu yofananira yotenthetsera yamagetsi yamagetsi, kupereka kusewera kwathunthu ku mapulogalamu apamwamba kwambiri ndi magwiridwe antchito a microcomputer. Kupyolera mu kusintha kwabwino kwa rectifier ndi inverter, mphamvu yosalekeza (mphamvu yochuluka) ingapezeke. Dongosolo lowongolera limagwiritsa ntchito ma seti awiri a single-chip microcomputer kuti azitha kuwongolera kuyambika kwa ma rectifier komanso kuzindikira kwa ma inverter tracking frequency pulses. Kutsata kokhazikika kwa ma frequency omaliza kumakhala ndi ma overcurrent, overvoltage, cut-cut and cut-off chitetezo ntchito, zomwe zimatha kumaliza kuzindikira zolakwika ndikuwonetsa.