Kwihlabathi elintsonkothileyo le-electronics, ii-diodes zilawula phezulu njengezinto ezibalulekileyo ezilawula ukuhamba kombane. Phakathi kweendidi ezahlukeneyo zeediode, iidiode zeZener kunye neediode eziqhelekileyo zivelele, nganye ineempawu ezizodwa kunye nokusetyenziswa. Ngelixa bobabini besebenza iindima ezibalulekileyo kwiisekethe ze-elektroniki, ukuqonda ukwahlula kwabo kubalulekile ekukhetheni i-diode efanelekileyo yomsebenzi othile.
Ukungena kwiiDiode eziqhelekileyo
Iidiode eziqhelekileyo, ezikwabizwa ngokuba yi-PN junction diode, zixhobo ze-semiconductor ezivumela ukuba i-current ihambe kwicala elinye (icala eliya phambili) ngelixa liyivimba kwicala elichaseneyo (i-reverse direction). Le propati yokulungisa ibenza babe ngamacandelo axabisekileyo ekuguquleni i-alternating current (AC) kwi-direct current (DC).
Ukuphonononga iiDiode zeZener
I-Zener diodes, uhlobo olukhethekileyo lwe-diode, lwabelana ngesakhiwo esisisiseko kunye nokulungiswa kweempawu zediode eziqhelekileyo kodwa zibonisa uphawu olongezelelweyo oluphawulekayo: ukuchithwa okulawulwayo. Xa iphantsi kwamandla ombane abuyele umva ocalanye odlula amandla ombane awonakeleyo achaziweyo, iidiode zeZener ziyophuka, zivumela umsinga ukuba uqukuqele kwicala elingasemva. Le nto ilawulwayo yokuphazamiseka yenza isiseko somsebenzi wabo okhethekileyo.
Ukutyhila iiyantlukwano eziphambili
Umahluko ocacileyo phakathi kweZener diode kunye neediode eziqhelekileyo ilele kwindlela yazo yokuziphatha:
Inkqubo yokuqhekeka: Iidiode eziqhelekileyo zibonisa ukuphuka kwe-avalanche, inkqubo engalawulwayo kunye neyona nto inokuyonakalisa. I-Zener diodes, kwelinye icala, iphantsi kokuphazamiseka kwe-Zener, into elawulwayo kunye nokuqikelelwa kokuphazamiseka.
Ukuqhekeka kweVoltage: Iidiode eziqhelekileyo zinoluhlu olubanzi lwee-voltages eziqhekezayo, zihlala zihluka ngokunyamezela ukuvelisa. Iidiode zeZener, ngokuchaseneyo, ziqhayisa ngokuchazwa ngokuchanekileyo kwaye ziqinisekisiwe amandla ombane wokuqhekeka, ezenza zilungele usetyenziso lolawulo lombane.
Usetyenziso: Iidiode eziqhelekileyo zisebenza njengezihlaziyi, ziguqula i-AC ibe yi-DC. Iidiode zeZener zigqwesa kulawulo lombane, ukukhuselwa kombane ogqithisileyo, ukuqina kombane, kunye nokubunjwa kwe-waveform.
Ukukhetha iDiode yasekunene
Ukukhetha phakathi kwe-Zener diode kunye ne-diode eqhelekileyo kuxhomekeke kwisicelo esithile:
Ukulungiswa: Iidiode eziqhelekileyo lolona khetho lukhethwayo lokuguqula i-AC ibe yi-DC.
Ukulawulwa kwamandla ombane: Iidiode zeZener lolona khetho lufanelekileyo lokugcina i-voltage ezinzileyo kuwo wonke umthwalo.
Ukukhusela i-overvoltage: I-Zener diodes ikhusela izinto ezinovakalelo ngokukhupha amandla ombane angaphezulu komhlaba ngexesha lokunyuka okanye izikhonkwane.
Kwi-voltage clamping: I-Zener diode inokunciphisa amanqanaba aphezulu okanye amancinci ombane kwisekethe, ukuthintela ukuphazamiseka komqondiso.
Ukubunjwa kwe-waveform: I-Zener diode inokubumba iifom zamaza ngokukliphu okanye ngokulungisa imiqondiso ye-AC.
Ukuqukumbela
Iidiode zeZener kunye neediode eziqhelekileyo, ngelixa zibelana ngesiseko esiqhelekileyo, ziyahlukana ekuziphatheni kwazo kunye nokusetyenziswa kwazo. I-Zener diode, kunye ne-voltage yazo echazwe ngokuchanekileyo kunye nokukwazi ukulawula amandla ombane, ikhanya kwizicelo ezifuna uzinzo kunye nokhuseleko. Iidiode eziqhelekileyo, kunye nobuchule bazo bokulungisa, zigqwesa ekuguquleni i-AC ibe yi-DC. Ukuqonda le mahluko kuxhobisa abathandi be-elektroniki ukuba benze izigqibo ezinolwazi xa bekhetha i-diode efanelekileyo kwiiprojekthi zabo.
Ixesha lokuposa: Jun-24-2024