Iyo huru parameters ye diode

Iyo tekinoroji zviratidzo zvinoshandiswa kuratidza kushanda kweiyo diode uye chiyero chekushandisa inonzi maparameter eiyo diode. Mhando dzakasiyana dze diode dzine hunhu hwakasiyana hunhu. Kune vanotanga, iwe unofanirwa kunzwisisa anotevera makuru paramita:

1. Yakarongwa mberi kushanda ikozvino

Inoreva huwandu hwemberi hwezvino kukosha hunobvumirwa ne diode panguva yekushanda kwenguva refu. Nekuti ikozvino inopfuura nemuchubhu ichaita kuti kufa kupisa, uye tembiricha ichakwira. Kana tembiricha yadarika muganhu unobvumidzwa (inenge zana nemakumi mana emachubhu esilicon uye angangoita makumi mapfumbamwe emachubhu egermanium), iyo inofa inopisa uye kukuvara. Naizvozvo, usapfuure yakatarwa kumberi kushanda ikozvino kweiyo diode panguva yekushandiswa. Semuyenzaniso, iyo inowanzoshandiswa IN140-90 germanium diode ine yakayerwa kumberi inoshanda ikozvino ye4001A.

2. Iyo yakakwirira reverse inoshanda voltage

Kana iyo reverse voltage inoiswa kumigumo yese ye diode inosvika pane imwe kukosha, iyo chubhu ichaputswa uye unidirectional conductivity icharasika. Kuti uve nechokwadi chekuchengetedzwa kwekushandiswa, iyo yakanyanya reverse inoshanda voltage kukosha inotsanangurwa. Semuenzaniso, reverse inomira voltage yeIN4001 diode i50V, uye reverse inomira voltage yeIN4007 i1000V.

3. Reverse current

Reverse current inoreva reverse ikozvino inoyerera nepakati pe diode pasi petembiricha yakataurwa uye yakanyanya reverse voltage. Iyo diki iyo reverse ikozvino, zviri nani iyo unidirectional conductivity yechubhu. Zvakakosha kucherechedza kuti reverse current ine hukama hwepedyo nekupisa. Kuwedzera kwegumi kwega kwega tembiricha, reverse ikozvino inopeta kaviri. Semuyenzaniso, 10AP2 germanium diode, kana reverse ikozvino iri 1uA pa250, tembiricha ichakwira kusvika 25, reverse yazvino ichakwira kusvika 35uA, zvichingodaro, pa500, reverse ikozvino yasvika 75mA, kwete kungorasika Iyo unidirectional. conductivity maitiro achaitawo kukuvadza kune chubhu nekuda kwekupisa. Kune mumwe muenzaniso, 8CP2 silicon diode, reverse ikozvino ingori 10uA pa5, uye kana tembiricha yakwira kusvika 25, reverse ikozvino ingori 75uA. Naizvozvo, masilicon diode ane kugadzikana kuri nani pakupisa kwakanyanya kupfuura germanium diode.