Metal-oxide-semiconductor field-effect transistors (MOSFETs) e fetotse indasteri ea lisebelisoa tsa elektroniki, ea fetoha likarolo tse fumanehang hohle lipotolohong tse fapaneng. Leha mosebetsi oa bona oa mantlha e le ho laola le ho holisa mats'oao a motlakase, li-MOSFET le tsona li na le ntho eo hangata e hlokomolohuoang empa e le ea bohlokoa: diode ea kahare ea 'mele. Poso ena ea blog e shebisisa ho rarahana ha diode tsa 'mele oa MOSFET, ho hlahloba litšobotsi tsa bona, bohlokoa ba moralo oa potoloho, le lits'ebetso tse ka bang teng.
Ho bula MOSFET 'Mele Diode
E kenyelelitsoe ka har'a sebopeho sa MOSFET, diode ea 'mele ke matekoane a tlhaho a likokoana-hloko a hlahang lipakeng tsa drainage le libaka tsa mohloli. Diode ena e bonts'a phallo ea hajoale e sa lebelloang, e lumellang hore hona joale ho fete ho tloha ho drain ho ea mohloling empa eseng ka tsela e fapaneng.
Bohlokoa ba 'Mele Diode Moqapi oa Potoloho
Diode ea 'mele e bapala karolo ea bohlokoa lits'ebetsong tse fapaneng tsa potoloho, haholo lisebelisoa tsa elektroniki:
Freewheeling Diode: Nakong ea ho tima MOSFET, diode ea 'mele e tsamaisa motlakase ho tloha mojaro, ho thibela li-spikes tsa motlakase le ho sireletsa MOSFET hore e se ke ea senyeha.
Tšireletso ea Hona Joale: Lipotolohong moo phallo ea morao-rao e leng ntho e tšoenyang, diode ea 'mele e sebetsa e le tšitiso, e thibelang hore metsi a se ke a phalla ho khutlela ho MOSFET.
Snubber Diode: Diode ea 'mele e ka sebetsa e le snubber diode, e senya matla a bolokiloeng ka li-inductances tsa parasitic le ho thibela ho feta ha motlakase nakong ea liketsahalo.
Litlhokomelo bakeng sa MOSFET Body Diodes
Le ha diode ea 'mele e fana ka melemo ea tlhaho, ho bohlokoa ho nahana ka likarolo tse itseng tsa moralo oa potoloho:
Matla a Reverse Voltage: Tekanyetso ea motlakase e ka morao ea diode ea 'mele e tlameha ho ts'oana kapa ho feta matla a phahameng a potoloho ho thibela ho senyeha.
Ts'ebetso e Tsoelang Pele: Bokhoni ba morao-rao ba diode ea 'mele bo lokela ho lekana ho sebetsana le maemo a holimo nakong ea li-freewheeling kapa maemo a reverse conduction.
Switching Speed: Lebelo la ho fetoha ha diode ea 'mele, haholo lits'ebetsong tsa maqhubu a holimo, ha ea lokela ho hlahisa tieho kapa tahlehelo e kholo.
Lisebelisoa tsa MOSFET Body Diodes
Diode ea 'mele e fumana lits'ebetso mefuteng e fapaneng ea lipotoloho:
Li-converter tsa DC-DC: Ka li-converter tsa buck, diode ea 'mele e sebetsa e le diode ea freewheeling, e sireletsang MOSFET ho li-spikes tsa motlakase oa inductive.
Lipotoloho tsa Taolo ea Likoloi: Diode ea 'mele e thibela phallo ea morao-rao ha enjene e koetsoe kapa e hlahisa EMF e khutlang.
Lisebelisoa tsa Matla: Ka lisebelisoa tsa motlakase, diode ea 'mele e sireletsa MOSFET nakong ea ho fetola li-transients le ho thibela ho khutlela morao ho tloha mojaro.
Qetello
Diode ea 'mele ea MOSFET, eo hangata e hlokomolohuoang, e bapala karolo ea bohlokoa moralong oa potoloho, haholo lisebelisoa tsa motlakase tsa motlakase. Ho utloisisa litšoaneleho tsa eona, bohlokoa le mefokolo ea eona ho bohlokoa bakeng sa ho rala lipotoloho tse matla, tse sebetsang hantle le tse tšepahalang. Ha theknoloji ea MOSFET e ntse e hatela pele, bohlokoa ba diode ea 'mele bo kanna ba tsoela pele, ho netefatsa hore e tsoela pele ho sebetsa lefatšeng le ntseng le fetoha la elektroniki.
Nako ea poso: Jun-07-2024