Iiparamitha eziphambili zediode

Iimpawu zobugcisa ezisetyenziselwa ukubonisa ukusebenza kwe-diode kunye nobubanzi besicelo zibizwa ngokuba yiparameters ye-diode. Iindidi ezahlukeneyo zediode zineempawu ezahlukeneyo. Kubaqalayo, kufuneka uqonde ezi parameters zilandelayo:

1. Ireyithwe phambili isebenza ngoku

Ibhekisela kwixabiso eliphezulu langoku eliya phambili elivunyelwe yi-diode ngexesha elide lokusebenza okuqhubekayo. Ngenxa yokuba i-current edlula kwi-tube iya kubangela ukuba ukufa kushushu, kwaye ukushisa kuya kunyuka. Xa iqondo lobushushu lidlula umda ovumelekileyo (malunga ne-140 yeetyhubhu ze-silicon kunye ne-90 ye-germanium tubes), ukufa kuya kutshisa kwaye konakaliswe. Ke ngoko, ungagqithisi isantya sokusebenza sangaphambili se-diode ngexesha lokusetyenziswa. Ngokomzekelo, i-IN4001-4007 i-germanium diode esetyenziswa ngokuqhelekileyo inomlinganiselo osebenzayo ohamba phambili we-1A.

2. Owona mbane uphezulu wokusebenza umva

Xa i-voltage ejikelezayo isetyenziswe kuzo zombini iziphelo zediode ifikelela kwixabiso elithile, ityhubhu iya kuchithwa kwaye i-conductivity ye-unidirectional iya kulahleka. Ukuze kuqinisekiswe ukhuseleko lokusetyenziswa, ixabiso le-voltage esebenzayo ephezulu lichaziwe. Ngokomzekelo, i-voltage ye-reverse standstand ye-IN4001 diode yi-50V, kunye ne-reverse ukumelana nombane we-IN4007 yi-1000V.

3. Reverse current

Umva wangoku ubhekisa kumbane obuyela umva oqukuqela kwidiode phantsi kobushushu obuchaziweyo kunye nobuninzi bombane obuya umva. Incinci i-reverse current, ingcono i-conductivity ye-unidirectional ye-tube. Kuyafaneleka ukuba uqaphele ukuba i-reverse current inobudlelwane obusondeleyo kunye nobushushu. Malunga nokunyuka kwe-10 kwiqondo lokushisa, i-reverse current iphinda kabini. Ngokomzekelo, i-2AP1 i-germanium diode, ukuba i-reverse yangoku yi-250uA kwi-25, iqondo lokushisa liya kunyuka libe yi-35, i-reverse yangoku iya kunyuka ibe yi-500uA, njalo njalo, kwi-75, i-reverse current ifikelele kwi-8mA, ayilahlekanga kuphela. iimpawu ze-conductivity ziya kubangela umonakalo kwi-tube ngenxa yokushisa. Ngomnye umzekelo, i-silicon diode ye-2CP10, i-reverse yangoku i-5uA kuphela kwi-25, kwaye xa izinga lokushisa liphakama ukuya kwi-75, i-reverse yangoku yi-160uA kuphela. Ke ngoko, i-silicon diode inozinzo olungcono kumaqondo obushushu aphezulu kune-germanium diode.