Ukuthola kanjani ukulungiswa okulawulwa yi-SCR(ntombikayise)?

Ukusetshenziswa okuyisisekelo kakhulu kwe-silicone ejwayelekile elawulwa kabusha ukulungiswa okulawulwayo. Isekhethi ye-diode rectifier ejwayelekile iyisekethi yesilungisi esingalawuleki. Uma i-diode ithathelwa indawo yi-rectifier elawulwa yi-silicon, isifunda sokubuyisela esilawulwayo singakhiwa. Ngidweba isifunda esilula esilawulekayo sesigaba esisodwa segagasi elilawulekayo. Phakathi nomjikelezo omuhle wesigamu se-sinusoidal AC voltage U2, uma isigxobo sokulawula se-VS singafaki i-trigger pulse Ug, i-VS namanje ayikwazi ukuvulwa. Kuphela uma i-U2 ikumjikelezo wengxenye ephozithivu futhi i-trigger pulse Ug isetshenziswa esigxotsheni sokulawula, i-thyristor iqaliswa ukuvula . Dweba i-waveform yayo, ungabona ukuthi kuphela lapho i-trigger pulse Ug ifika, ukuphuma kwe-voltage UL kumthwalo we-RL. U-Ug ufika kusenesikhathi, futhi i-SCR ivulwa kusenesikhathi; I-Ug ifika sekwephuzile, futhi i-SCR ivulwa sekwephuzile. Ngokushintsha isikhathi sokufika se-trigger pulse Ug esigxotsheni sokulawula, inani eliphakathi le-UL (indawo yengxenye enomthunzi) ye-voltage ephumayo emthwalweni ingalungiswa. Ebunjiniyela bukagesi, umjikelezo wesigamu wamanje oshintshanayo uvame ukusethwa njengo-180°, okubizwa nge-engeli kagesi. Ngale ndlela, emjikelezweni ngamunye omuhle wesigamu se-U2, i-engeli kagesi etholwayo ukusuka enanini eliyiziro kuye kumzuzu wokushaywa kwe-trigger ibizwa ngokuthi i-engeli yokulawula u-α; i-engeli kagesi lapho i-thyristor eqhuba khona kumjikelezo ngamunye oqondile ibizwa ngokuthi i-conduction angle θ. Ngokusobala, kokubili u-α no-θ asetshenziselwa ukukhombisa ukuqhutshwa noma ukuvimba ububanzi be-thyristor phakathi nomjikelezo wesigamu we-voltage eya phambili. Ngokushintsha i-engeli yokulawula engu-α noma i-engeli conduction θ, isilinganiso senani le-UL le-voltage ye-pulse DC emthwalweni liyashintshwa, futhi ukulungiswa okulawulwayo kuyenziwa.