Sebakeng sa lisebelisoa tsa elektroniki, li-MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistors) li hlahile e le likarolo tse fumanehang hohle, tse tsebahalang ka bokhoni ba tsona, lebelo la ho chencha, le ho laoleha. Leha ho le joalo, li-MOSFET li na le tšobotsi ea tlhaho, diode ea 'mele, e hlahisang melemo le mathata a ka bang teng. Thupelo ena e bonolo ho ba qalang e shebana le lefats'e la li-diode tsa 'mele tsa MOSFET, ho lekola metheo ea tsona, litšoaneleho le lits'ebetso tse sebetsang.
Ho bula MOSFET 'Mele Diode
MOSFET body diode ke parasitic diode ea kahare e entsoeng ke sebopeho sa kahare sa MOSFET. E teng pakeng tsa li-terminals tsa mohloli le tsa drainage, 'me tataiso ea eona hangata e fapana le phallo ea hajoale ea MOSFET.
Ho Utloisisa Letšoao le Litšobotsi
Letšoao la diode ea 'mele oa MOSFET le tšoana le diode e tloaelehileng, e nang le motsu o bontšang tsela ea ho phalla ha joale. Diode ea 'mele e na le likarolo tse' maloa tsa bohlokoa:
Tsoela Pele: 'Mele oa diode o ka tsamaisa hona joale ho ea pele, joalo ka diode e tloaelehileng.
Reverse Voltage Breakdown: Diode ea 'mele e na le motlakase oa ho senyeha, ho feta moo o sebetsang ka mokhoa o feteletseng, o ka senyang MOSFET.
Nako ea ho Khutlisa Nako: Ha diode ea 'mele e fetoha ho tloha pele ho ea morao, ho nka nako ea ho hlaphoheloa ho khutlisa matla a eona a ho thibela.
Lisebelisoa tsa MOSFET Body Diodes
Freewheeling Diode: Ka har'a li-circuits tsa inductive, diode ea 'mele e sebetsa joalo ka freewheeling diode, e fana ka tsela ea hore hona joale ha inductor e bole ha MOSFET e tima.
Khutlisetsa Tšireletso ea Hona Joale: Diode ea 'mele e sireletsa MOSFET hore e se ke ea senyeha ka lebaka la maqhubu a khutlelang morao a ka hlahang litlhophisong tse itseng tsa potoloho.
Voltage Clamping: Lits'ebetsong tse ling, diode ea 'mele e ka sebelisoa bakeng sa ho koala motlakase, ho fokotsa li-spikes tsa motlakase le ho sireletsa likarolo tse hlokolosi.
Mehlala e Sebetsang
DC Motor Control: Lipotolohong tsa taolo ea makoloi a DC, diode ea 'mele e sireletsa MOSFET tšenyo e bakoang ke EMF (matla a motlakase) ha MOSFET e tima.
Lipotoloho tsa Phepelo ea Motlakase: Lipotolohong tsa phepelo ea motlakase, diode ea 'mele e ka sebetsa e le diode ea mahala, e thibelang ho bokellana ha motlakase o feteletseng ha MOSFET e tima.
Lipotoloho tsa Snubber: Li-circuits tsa snubber, tse atisang ho sebelisa diode ea 'mele, li sebelisetsoa ho qhala matla le ho fokotsa li-spikes tsa motlakase nakong ea MOSFET, ho sireletsa MOSFET le ho ntlafatsa botsitso ba potoloho.
Qetello
Li-diode tsa 'mele tsa MOSFET, le hoja hangata li hlokomolohuoa, li phetha karolo ea bohlokoa lipotolohong tse fapaneng tsa elektroniki. Ho utloisisa metheo ea bona, litšoaneleho le lits'ebetso ho matlafatsa baenjiniere le litsebi ho rala lipotoloho tse matla le tse tšepahalang. Ka ho hlahloba ka hloko litlamorao tsa diode tsa 'mele le ho sebelisa mekhoa e nepahetseng ea moralo oa potoloho, bokhoni bo felletseng ba li-MOSFET bo ka sebelisoa ha ho ntse ho netefatsa bophelo bo bolelele le botsitso ba litsamaiso tsa elektroniki.
Nako ea poso: Jun-11-2024