Momwe mungasankhire dera loyendetsa bwino kwambiri la MOSFET?

Mu switch yamagetsi ndi pulogalamu ina yopangira magetsi, opanga mapulogalamu azisamalira kwambiri magawo angapo amagetsi.MOSFET, monga chopinga chozimitsa, voteji yokulirapo, mphamvu yokulirapo. Ngakhale chinthu ichi ndiwotsutsa, poganizira malo osayenera adzapangitsa kuti magetsi azigwira ntchito bwino, koma kwenikweni, izi zimangomaliza sitepe yoyamba,za MOSFET magawo ake parasitic amaonedwa kuti ndi chinthu chofunikira kuyika pachiwopsezo chamagetsi.

Kuyendetsa mwachangu kwa ma MOSFET okhala ndi ma IC amagetsi

Dera loyendetsa bwino la MOSFET lili ndi izi:

(1) Pomwe kusinthako kwayatsidwa, dera loyendetsa dalaivala liyenera kutulutsa mphamvu yayikulu kwambiri, kuti magetsi a MOSFET-gwero lapakati-pole akukwera mwachangu kufika pamtengo wofunikira, kuwonetsetsa kuti chosinthiracho chikhoza kutembenuzidwa. mwachangu ndipo sipadzakhala ma oscillation apamwamba kwambiri pamtunda wokwera.

(2) mphamvu lophimba ndi kuzimitsa nthawi, galimoto dera akhoza kuonetsetsa kuti MOSFET chipata gwero inter-pole ntchito voteji ndi anakhalabe kwa nthawi yaitali, ndi conduction ogwira.

(3) Tsekani kamphindi kakang'ono ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kake kake

Momwe mungasankhire dera loyendetsa bwino kwambiri la MOSFET(1)

(4) Kumanga kosavuta komanso kodalirika kwa mabwalo oyendetsa magalimoto okhala ndi kuchepa kwapang'onopang'ono.

(5) Malinga ndi zochitika zenizeni kuchita chitetezo.

Mu gawo lowongolera mphamvu zamagetsi, chodziwika bwino ndi IC mphamvu yoyendetsera molunjika MOSFET. ntchito, ayenera kulabadira lalikulu pagalimoto mtengo wapamwamba otaya mphamvu, MOSFET kugawa capacitance 2 magawo waukulu. Mphamvu ya IC yoyendetsa galimoto, kukula kwa MOS kugawa mphamvu, mtengo wotsutsa woyendetsa galimoto udzayika pachiwopsezo cha kusintha kwa mphamvu ya MOSFET. Ngati kusankha MOSFET kugawa capacitance ndi lalikulu, ndi mphamvu IC mkati pagalimoto mphamvu sikokwanira, ayenera kukhala mu galimoto dera kusintha pagalimoto luso, nthawi zambiri ntchito totem mzale mphamvu magetsi dera kumapangitsanso mphamvu IC pagalimoto mphamvu. .