Mafari ta Manual rediyo mai son: dubawa thyristor

Thyristor - a semiconductor kashi kafa a kan wani semiconductor guda crystal tushe da ciwon uku ko fiye pn-mararraba da biyu barga jihohi: a Jihar low watsin, da ake kira rufe. da kuma wani Jihar high watsin - bude.

Novice rediyo mai son iya tambayar: "Yaya ne tabbaci na thyristor" A cikin wannan labarin, za mu duba a wannan hanya na gwajin wani semiconductor kashi. Har ila yau, mun bincika abin da ake bukata magwajin thyristors.

Akwai hanyoyin da dama don gwajin semiconductor na'urorin. Na farko rajistan shiga na thyristor za a iya za'ayi amfani da wadannan kayan aiki: dijital multimeter, magwajin ko ohmmeter. A mita dole a kunna a cikin "gaba" na diodes da magwajin yanayin da juriya ji. Da taimakon wadannan na'urori ne mai yiwuwa a duba miƙa mulki tsakanin thyristor ƙofar kuma cathode da kuma tsakanin da anode da cathode. The girma na mika mulki juriya tsakanin semiconductor kashi da kuma kula da lantarki na cathode ya zama 50-500 ohms. A darajar wannan juriya ne kamar guda kamar yadda a cikin gaba da baya ji. A mafi girma da juriya darajar, da mafi m semiconductor thyristor. A wasu kalmomin, da na'urar dole ne a kananan halin yanzu darajar a kan kula da lantarki, don motsawa daga cikin rufaffiyar ga bude jihar. M thyristor yana da wani juriya darajar tsakanin wayoyin matsayin anode-cathode a lokacin a gaba kuma a lokacin baya metering o ƙarin tabbatar da rashin iyaka.

Na farko rajistan shiga na thyristor bada yiwuwar cewa wani biyu-hannu semiconductor kashi iya hada wani ƙone-fita mika mulki cathode-anode. Aunawa kida irin wannan matsala ba za a iya ƙaddara.

Babban thyristor rajistan shiga aka yi tare da yin amfani da ƙarin iko kafofin. Lokacin da irin wannan aiki ne gaba daya shafe matsalar aiki na samfur na semiconductor na'urar. A thyristor shiga wani bude jihar, idan cathode - iko lantarki - ƙetare short bugun jini da ake bukata domin bude rabi. Domin wannan makirci da yake faruwa a gwada thyristors. da yawa za a iya tattara irin makircinsu, la'akari da mafi na farko. Don yin wannan, yi amfani da wani ikon samar, an nuna alama fitila, biyu sauya kuma resistors. Circuit za a iya harhada a kan wani gwajin jirgin ko da-ma'ana wayoyi. Tattara makirci debe ikon (5-25 V) amfani da cathode na thyristor. Plus source ta hanyar da kullum rufe key K1 kuma via da nuna alama haske a kan na'urar anode. Don da fitarwa na kula da lantarki hašawa resistor, na biyu lamba ne ta hanyar da kullum bude button K2 an haɗa tsakanin fitilar da key K1. A juriya darajar da aka zaba tare da fata cewa yanzu kwarara shi ya isa don kunna na'urar. All makirci ne shirya, fara da gwajin. Domin wannan closable key K2, da iko halin yanzu zai tafi, ta hanyar da kewaye daga da button ta hanyar K1 K2 da via wani resistor, via da iko lantarki ga cathode da kuma debe Madogararsa. Thyristor yana buɗewa. K2 button da aka saki. Nuna alama fitila. Tura button K1 kullum rufe, load halin yanzu ta hanyar da thyristor kewaye da aka yanke, kuma shi ne a rufe. A fitilar ke fita, da rangadi zuwa na farko a jihar.