Ukunciphisa i-Schottky Diode: I-Versatile Workhorse kwi-Electronics

Ihlabathi le-elektroniki lixhomekeke kwiintlobo ezahlukeneyo zabalinganiswa, ngamnye udlala indima ebalulekileyo. Phakathi kwezi, iidiode zibalasele ngokukwazi kwazo ukulawula ukuhamba kombane. Namhlanje, sihlolisisa uhlobo oluthile - i-diode ye-Schottky, umxube oyingqayizivele wetsimbi kunye ne-semiconductor kunye noluhlu lwezicelo ezixabisekileyo.

Ukuqonda iSchottky Diode

Ngokungafaniyo ne-pn junction diode eqhelekileyo, i-diode ye-Schottky yenza umdibaniso phakathi kwentsimbi kunye ne-semiconductor. Oku kudala umqobo we-Schottky, ummandla apho ukuhamba kwe-electron kuthintelwe khona. Xa i-voltage isetyenziswe kwicala langaphambili (i-positive kwicala lesinyithi), ii-electron zoyisa umqobo kwaye ngoku zihamba ngokulula. Nangona kunjalo, ukusebenzisa i-voltage ebuyela umva kudala umqobo onamandla, othintela ukuhamba kwangoku.

Iimpawu kunye neempawu

Isimboli ye-Schottky diode ifana ne-diode eqhelekileyo kunye nomgca othe tye onqumle unxantathu okhomba kwitheminali ephozithivu. Ijika leempawu zalo ze-VI lifana ne-pn junction diode, kodwa ngokwahlukana okubalulekileyo: ukuhla kwamandla ombane osezantsi kakhulu, ngokuqhelekileyo phakathi kwe-0.2 ukuya kwi-0.3 volts. Oku kuguqulela ekunciphiseni ukulahlekelwa kwamandla ngexesha lokusebenza.

UmGaqo wokuSebenza

Umgaqo ongundoqo emva kokusebenza kwe-Schottky diode ulele kumandla ahlukeneyo ee-electron kwizinto ezahlukeneyo. Xa isinyithi kunye ne-n-type semiconductor zidibana, ii-electron zihamba ngaphaya kwesiphambuka kumacala omabini. Ukufaka amandla ombane ohamba phambili komeleza ukuhamba ukuya kwi-semiconductor, evumela umsinga.

Usetyenziso lweSchottky Diode

I-Schottky diode zizifumana zikwizicelo ezahlukeneyo ze-elektroniki ngenxa yeempawu zazo ezizodwa:

I-RF Mixers kunye ne-Detectors: Isantya sazo esikhethekileyo sokutshintsha kunye nokukwazi ukujikeleza okuphezulu kubenza balungele usetyenziso lwerediyo (RF) njengemixube yeringi yediode.

Amandla okulungisa amandla: Ukukwazi ukuphatha imisinga ephezulu kunye neevolthi kunye nokuhla kwamandla ombane asezantsi ukuya phambili kubenza babe ngabahlaziyi bamandla abasebenzayo, ukunciphisa ilahleko yamandla xa kuthelekiswa ne-pn junction diode.

Amandla OKANYE Iisekethe: Kwiisekethe apho izixhobo ezimbini zombane ziqhuba umthwalo (njengeebhetri zokugcinwa kwebhetri), i-Schottky diodes inqanda i-current ukuba ihambe ibuyele kwindawo enye ukusuka kwenye.

Usetyenziso lweSolar Cell: Iiphaneli zelanga zihlala ziqhagamshelwa kwiibhetri eziphinda zitshajwe, ngokuqhelekileyo i-lead-acid. Ukuthintela ikhoyo ngoku ukuba ibuyele kwiiseli zelanga ebusuku, i-Schottky diodes isetyenziselwa uqwalaselo lwe-bypass.

Izinto eziluncedo nezingeloncedo

I-Schottky diode ibonelela ngeenzuzo ezininzi:

I-Capacitance ephantsi: Ummandla wokunciphisa ukungabikho kokunyanzeliswa kubangela amandla aphantsi, okwenza ukuba afaneleke kwizicelo eziphezulu ze-frequency.

Ukutshintsha ngokukhawuleza: Utshintsho olukhawulezayo ukusuka kwi-off ukuya kumazwe luvumela ukusebenza ngesantya esiphezulu.

Uxinano oluPhezulu lwangoku: Ummandla omncinci wokuncipha ubenza bakwazi ukujongana noxinzelelo oluphezulu lwangoku.

I-Low Turn-On Voltage: Ukuhla kwamandla ombane angaphambili kwi-0.2 ukuya kwi-0.3 volts kuphantsi kakhulu kune-pn junction diode.

Nangona kunjalo, kukho enye i-drawback engundoqo:

Ukuvuza okuPhakamileyo kwangoku: I-Schottky diodes ibonisa ukuvuza okuphezulu okubuyela umva xa kuthelekiswa ne-pn junction diode. Oku kunokuba yinkxalabo kwizicelo ezithile.

Ukuqukumbela

I-Schottky diode, ene-metal-semiconductor junction ekhethekileyo, inika indibaniselwano exabisekileyo yokuhla kwamandla ombane asezantsi, isantya sokutshintsha ngokukhawuleza, kunye nokukwazi ukuphatha ngoku. Oku kubenza babe ngamacandelo angenakubuyiseleka kwiisekethe ezahlukeneyo ze-elektroniki, ukusuka kumbane ukuya kwiinkqubo zamandla elanga. Njengoko itekhnoloji iqhubeka nokuvela, i-Schottky diode iqinisekile ukuba iya kuhlala ilihashe elithembekileyo kushishino lombane.