Kodi MOSFET imayendetsedwa mokwanira kapena theka?

Nthawi Yotumiza: Sep-20-2024

Ma MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) nthawi zambiri amawonedwa ngati zida zoyendetsedwa bwino. Izi ndichifukwa choti mawonekedwe ogwiritsira ntchito (poyatsa kapena kuzimitsa) a MOSFET amawongoleredwa kwathunthu ndi magetsi a pachipata (Vgs) ndipo sizidalira pakali pano monga momwe zimakhalira ndi bipolar transistor (BJT).

Mu MOSFET, voteji ya chipata Vgs imatsimikizira ngati njira yoyendetsera imapangidwa pakati pa gwero ndi kukhetsa, komanso m'lifupi ndi ma conductivity a njira yoyendetsera. Vgs ikadutsa malire a Vt, njira yoyendetsera imapangidwa ndipo MOSFET imalowa m'boma; Vgs ikagwera pansi pa Vt, njira yoyendetsera imasowa ndipo MOSFET ili m'malo odulidwa. Kuwongolera uku kumayendetsedwa bwino chifukwa magetsi a pachipata amatha kuwongolera pawokha komanso moyenera momwe MOSFET imagwirira ntchito popanda kudalira magawo ena apano kapena magetsi.

Mosiyana ndi izi, mawonekedwe ogwiritsira ntchito zida zoyendetsedwa ndi theka (mwachitsanzo, thyristors) samangokhudzidwa ndi mphamvu yamagetsi kapena yamakono, komanso ndi zinthu zina (mwachitsanzo, anode voteji, panopa, etc.). Zotsatira zake, zida zoyendetsedwa bwino (mwachitsanzo, ma MOSFET) nthawi zambiri zimapereka magwiridwe antchito abwino potengera kulondola komanso kusinthasintha.

Kodi MOSFET imayendetsedwa mokwanira kapena theka (2)

Mwachidule, ma MOSFET ndi zida zoyendetsedwa bwino zomwe magwiridwe antchito ake amayendetsedwa kwathunthu ndi magetsi a pachipata, ndipo ali ndi maubwino olondola kwambiri, kusinthasintha kwakukulu komanso kugwiritsa ntchito mphamvu zochepa.