Ana buƙatar gada mai gyara thyristor mai hawa uku don sarrafa injin DC.Na'urar da ta dace tana da mahimmanci don tabbatar da aikin kwanciyar hankali na mai farawa mai laushi don sarrafa motar kuma dole ne a zaba don dacewa da dukiyar motar da bukatun tsarin.An bayar da ƙa'idar zaɓi kamar ƙasa:

1.Condition: shigar da ƙarfin lantarki V_layi= 380V (3N 50Hz), fitarwa DC na yanzu I_d= 3600A, yanayin sanyaya na thyristor shine sanyaya iska, yanayin yanayin T_A= 40 ℃, abin da ake so hawan halin yanzu I_TSM= 20 KA.

2.Zaɓi na ƙarfin lantarki: ƙimar ƙimar ƙimar layin layi

V_D(max)=*V_I= * 380=537V, anti-tasiri coefficient ana la'akari da matsayin 2.5, dabara don lissafin ƙarfin lantarki sa ne: V._DSM≥537V*2.5= 1343V, haka

V_DSM= V_RSM= 1400V.

3.Zaɓin halin yanzu: saboda ƙayyadaddun ƙayyadaddun thyristor ya bambanta ban da halin yanzu daban-daban, don haka ya kamata mu lissafta ƙimar da ta dace ta yanzu daga thyristor tare da Vrrm=1400V.I_d= 3600A, matsakaicin halin yanzu yana wucewa akan kowane thyristor I_T= 1200A, ƙimar halin yanzu na thyristor I_{T (AV)}= 1200A*2.5=3000A.

4. Irin wannan iska mai sanyaya heatsink za a zaba bisa ga shaci na thyristor.

5.The thyristor da heatsink ya kamata a zaba a kan aikace-aikace da kuma cikakken da ake bukata tsarin kula da mota.The zamani kula thyristor da heatsink kerarre da Jiangsu Yangjie Runau Semiconductor Co an sosai hadedde tare da fasaha fasaha na kera babban iko semiconductor na'urar.Ana amfani da shi sosai a aikace-aikacen sarrafa watsawa ta mota.Da fatan za a tuntuɓi ƙwararrun ma'aikatanmu don zaɓar wanda ya dacethyristorkumazafidon mafi kyawun aikin aikace-aikacen ku.