Umhlaba wezinto zikagesi uthembele kubalingiswa abahlukahlukene, ngamunye odlala indima ebalulekile. Phakathi kwalezi, ama-diode agqama ngekhono lawo lokulawula ukuhamba kukagesi. Namuhla, sihlola uhlobo oluthile - i-Schottky diode, inhlanganisela eyingqayizivele yensimbi ne-semiconductor enohlu lwezinhlelo zokusebenza ezibalulekile.
Ukuqonda i-Schottky Diode
Ngokungafani ne-pn junction diode evame kakhulu, i-Schottky diode yenza ukuhlangana phakathi kwensimbi ne-semiconductor. Lokhu kudala umgoqo we-Schottky, isifunda lapho ukugeleza kwe-electron kukhawulelwe khona. Lapho i-voltage isetshenziswa ekuqondeni phambili (enhle ohlangothini lwensimbi), ama-electron anqoba umgoqo futhi ageleza kalula. Nokho, ukusebenzisa i-voltage ehlehlayo kudala umgoqo onamandla, ovimbela ukugeleza kwamanje.
Uphawu Nezici
Uphawu lwe-Schottky diode lufana ne-diode evamile enomugqa ovundlile onqamula unxantathu obheke kutheminali ephozithivu. Ijika layo lesici se-VI lifana ne-pn junction diode, kodwa elinomehluko oyinhloko: ukwehla kwamandla kagesi okuya phambili okuphansi kakhulu, ngokuvamile phakathi kuka-0.2 kuya ku-0.3 volts. Lokhu kuhumusha ukuncipha kokulahlekelwa kwamandla ngesikhathi sokusebenza.
Isimiso Sokusebenza
Isimiso esiyinhloko sokusebenza kwe-Schottky diode sisemandleni anamandla ahlukahlukene ama-electron ezintweni ezihlukene. Lapho i-metal kanye ne-semiconductor yohlobo lwe-n kuhlangana, ama-electron ageleza anqamula ukuhlangana kuzo zombili izinkomba. Ukusebenzisa i-voltage eya phambili kuqinisa ukugeleza ku-semiconductor, kunika amandla amandla.
Izicelo ze-Schottky Diode
Ama-Schottky diode azithola esezinhlelo zokusebenza ze-elekthronikhi ezahlukahlukene ngenxa yezakhiwo zawo ezihlukile:
Ama-RF Mixers namaDetector: Isivinini sawo sokushintsha esiyingqayizivele namandla amaza aphezulu awenza alungele izinhlelo zokusebenza zomsakazo (RF) njengezixube zeringi ye-diode.
Izilungisi Zamandla: Ikhono lokusingatha imisinga ephezulu nama-voltage ngokuhla kwe-voltage eya phambili ephansi kuzenza zibe izilungisi zamandla ezisebenza kahle, ezinciphisa ukulahleka kwamandla uma kuqhathaniswa nama-pn junction diode.
Amandla NOMA Amasekhethi: Kumasekhethi lapho izinto ezimbili zamandla zishayela khona umthwalo (njengama-backups ebhethri), ama-Schottky diode avimbela i-current ukuthi igeleze ibuyele endaweni eyodwa ukusuka kwenye.
Izicelo Zeseli Yelanga: Amaphaneli elanga avame ukuxhunywa kumabhethri aphinde ashajwe, ngokuvamile i-lead-acid. Ukuze uvimbele i-current ukuthi ingagelezi ibuyele kumaseli elanga ebusuku, ama-Schottky diode asetshenziswa ekucushweni kwe-bypass.
Izinzuzo kanye Nemibi
I-Schottky diode inikeza izinzuzo eziningana:
Amandla Aphansi: Isifunda sokuncibilika ngokunganaki siphumela kumthamo omncane, okuwenza afanelekele izinhlelo zokusebenza zemvamisa ephezulu.
Ukushintsha Ngokushesha: Ushintsho olusheshayo ukusuka ezifundazweni luye kwelinye luvumela ukusebenza ngesivinini esikhulu.
Ukuminyana Okuphezulu Kwamanje: Indawo encane yokuncipha ibenza bakwazi ukuphatha ukuminyana okuphezulu kwamanje.
I-Low Turn-On Voltage: Ukwehla kwamandla kagesi aya phambili angu-0.2 kuya ku-0.3 volts kuphansi kakhulu kune-pn junction diode.
Nokho, kune-drawback eyodwa ebalulekile:
Ukuvuza Okuhlehla Okuhle Kwamanje: I-Schottky diode ibonisa ukuvuza okuphambene okuphezulu uma kuqhathaniswa nama-pn junction diode. Lokhu kungaba ukukhathazeka kwezinye izinhlelo zokusebenza.
Isiphetho
I-Schottky diode, ne-metal-semiconductor junction yayo eyingqayizivele, inikeza inhlanganisela ebalulekile yokwehla kwamandla kagesi aya phambili aphansi, isivinini sokushintsha ngokushesha, nekhono eliphezulu lokubamba lamanje. Lokhu kubenza babe izingxenye ezingenakubuyiseleka kumasekhethi e-elekthronikhi ahlukahlukene, kusukela kumandla kagesi kuya ezinhlelweni zamandla elanga. Njengoba ubuchwepheshe buqhubeka nokuvela, i-Schottky diode iqinisekile ukuthi izohlala iyihhashi elithembekile embonini yezogesi.
Isikhathi sokuthumela: Jun-13-2024