I. Qeexida MOSFET
Sida danab ku shaqeeya, aaladaha hadda sarreeya, MOSFET-yada leeyihiin tiro badan oo codsiyo ah wareegyada, gaar ahaan nidaamyada korontada. MOSFET diodes body, oo sidoo kale loo yaqaanno parasitic diodes, kuma jiraan buugaagta wareegyada isku dhafan, laakiin waxaa laga helaa aaladaha MOSFET ee kala duwan, kuwaas oo bixiya ilaalin rogaal celis ah iyo sii wadida hadda marka ay wadaan qulqulo sare iyo marka culeyska wax soo saarku uu jiro.
Sababtoo ah joogitaanka diode-kan, qalabka MOSFET si fudud looma arki karo isaga oo wareeg ku wareegaya, sida wareegga dallacaadda oo ay ku dhammaato dallacaadda, korontadu waa laga saarayaa oo batteriga ayaa dib u rogaya, taas oo badanaa ah natiijo aan la rabin.
Xalka guud waa in lagu daro diode dhabarka si looga hortago koronto gadaashiis, laakiin sifooyinka diode ayaa go'aamiya baahida loo qabo hoos u dhaca danab ee 0.6 ~ 1V, taas oo keeneysa kuleyl halis ah oo kuleyl ah oo ku yimaada qulqulka sare iyada oo keenaysa qashinka. tamarta iyo yaraynta waxtarka tamarta guud. Qaab kale ayaa ah in lagu dhejiyo MOSFET-daba-dambe, iyada oo la adeegsanayo iska caabbinta hoose ee MOSFET si loo gaaro waxtarka tamarta.
Waa in la ogaadaa in ka dib korantada, MOSFET ee aan jihayn, sidaas darteed ka dib cadaadiska cadaadiska, waxay la mid tahay silig, kaliya iska caabin ah, ma jirto hoos u dhaca danab gobolka, sida caadiga ah saturated on-resistance dhowr milliohms simillihms waqtiga, iyo mid aan jiho ahayn, taas oo u oggolaanaysa DC iyo awoodda AC inay dhaafaan.
II. Tilmaamaha MOSFETs
1, MOSFET waa aaladda korantada lagu xakameeyo, looma baahna marxalad kicin ah si loo wado qulqulka sare;
2, iska caabin galitaanka sare;
3, baaxadda inta jeer ee hawlgalka ballaaran, xawaaraha beddelka sare, khasaaro hoose
4, AC raaxo leh impedance sare, buuq yar.
5,Isticmaalka isbarbardhigga ee badan, kordhinta hadda wax soo saarka
Marka labaad, isticmaalka MOSFETs ee habka taxadarka
1, si loo hubiyo isticmaalka badbaadada leh ee MOSFET, qaabeynta khadka, waa inaysan dhaafin daadinta tamarta dhuumaha, ugu badnaan korantada isha qulqulka, danabka isha irida iyo qiimayaasha xaddidan ee hadda iyo kuwa kale.
2, noocyada kala duwan ee MOSFET-yada la isticmaalo, waa insi adag u gal iyada oo la raacayo gelitaanka eexda loo baahan yahay ee wareegga, si loogu hoggaansamo kala-goynta MOSFET-ka.
3. Markaad rakibayso MOSFET, fiiro gaar ah u yeelo booska rakibaadda si aad uga fogaato meel u dhow walxaha kuleylka. Si looga hortago gariirka qalabka, qolofka waa in la adkeeyaa; leexinta biinanka biinanka waa in lagu fuliyaa in ka badan cabbirka xididka 5mm si looga hortago in biinku foorarsado oo uu dillaaco.
4, iyadoo ay ugu wacan tahay cilad-gelinta aadka u saraysa, MOSFET-yada waa in laga soo gaabiyaa biinka inta lagu jiro gaadiidka iyo kaydinta, oo lagu xidho gaashaan bir ah si looga hortago burburka iman kara ee ka iman kara albaabka.
5. Korontada albaabka ee isgoysyada MOSFETs lama rogi karo waxaana lagu kaydin karaa xaalad wareeg ah, laakiin iska caabin gelinta MOSFET-yada dahaaran aad bay u sareysaa marka aan la isticmaalin, sidaas darteed electrode kasta waa inuu noqdaa mid gaaban. Marka la iibinayo MOSFET-yada albaabada daboolan, raac sida ay u kala horreeyaan albaabka-ka-soo-baxa, iyo alxanka iyadoo korontadu dansan tahay.
Si loo hubiyo isticmaalka badbaadada leh ee MOSFET-yada, waxaad u baahan tahay inaad si buuxda u fahamto sifooyinka MOSFET-yada iyo taxaddarrada loo baahan yahay in la qaado isticmaalka geeddi-socodka, waxaan rajeynayaa in soo koobidda sare ay ku caawin doonto.
Waqtiga boostada: Meey-15-2024
