Babban sigogi na diode

Alamomin fasaha da aka yi amfani da su don nuna aikin diode da iyakar aikace-aikacen ana kiran su sigogi na diode. Daban-daban na diodes suna da sigogi daban-daban. Don masu farawa, dole ne ku fahimci manyan sigogi masu zuwa:

1. rated gaba aiki halin yanzu

Yana nufin matsakaicin ƙimar gaba na yanzu da diode ke ba da izini yayin aiki na ci gaba na dogon lokaci. Domin halin da ake ciki na wucewa ta cikin bututu zai sa mai mutuwa ya yi zafi, kuma zafin jiki zai tashi. Lokacin da zafin jiki ya wuce iyakar da aka yarda (kimanin 140 don bututun silicon da kusan 90 don bututun germanium), mutu zai yi zafi kuma ya lalace. Don haka, kar a wuce ƙimar aikin gaba na diode yayin amfani. Misali, IN4001-4007 germanium diodes da aka saba amfani da su suna da 1A mai aiki na gaba.

2. Mafi girman juyi aiki ƙarfin lantarki

Lokacin da juzu’in wutar lantarki da aka yi amfani da shi a ƙarshen diode biyu ya kai wani ƙima, bututun za a karye kuma za a yi hasarar ɗawainiyar ɗabi’ar unidirectional. Don tabbatar da amincin amfani, an ƙayyade matsakaicin ƙimar wutar lantarki mai aiki. Alal misali, juriya juriya irin ƙarfin lantarki na IN4001 diode ne 50V, da kuma juriya juriya irin ƙarfin lantarki na IN4007 ne 1000V.

3. Juya halin yanzu

Juya halin yanzu yana nufin jujjuyawar halin yanzu da ke gudana ta diode ƙarƙashin ƙayyadadden zafin jiki da matsakaicin ƙarfin juzu’i. Karami mai jujjuya halin yanzu, mafi kyawun ɗawainiyar unidirectional na bututu. Ya kamata a lura cewa juzu’i na baya yana da dangantaka ta kusa da zafin jiki. Kusan kowane 10 karuwa a zafin jiki, da baya halin yanzu ninki biyu. Alal misali, 2AP1 germanium diode, idan reverse current ne 250uA a 25, zazzabi zai tashi zuwa 35, da baya halin yanzu zai tashi zuwa 500uA, da sauransu, a 75, da reverse halin yanzu ya kai 8mA, ba kawai rasa The unidirectional. Halayen conductivity kuma za su haifar da lalacewa ga bututu saboda yawan zafi. Ga wani misali, 2CP10 silicon diode, da baya halin yanzu ne kawai 5uA a 25, da kuma lokacin da zafin jiki yakan zuwa 75, da baya halin yanzu ne kawai 160uA. Saboda haka, siliki diodes suna da mafi kyawun kwanciyar hankali a yanayin zafi fiye da diodes germanium.