Uyini umehluko omkhulu phakathi kokusetshenziswa kwama-triacs kanye ne-unidirectional thyristors?

Ama-SCR ahlukaniswe aba yi-unidirectional kanye ne-bidirectional, futhi izimpawu nazo zihlukile. Ama-SCR we-unidirectional anezinhlanganisela ezintathu ze-PN, futhi ama-electrode amabili adonswa engxenyeni engaphandle yeP kanye neN pole, ebizwa nge-anode ne-cathode, ngokulandelana. Ipholi P liholela esigxotsheni sokulawula.

Indlela eyodwa i-SCR inezici zayo ezihlukile: lapho i-anode ixhunywe ukubuyisela emuva i-voltage, noma lapho i-anode ixhunywe ukudlulisela phambili i-voltage kepha i-electrode yokulawula ayisebenzi i-voltage, ayiqhubi, futhi lapho i-anode ne-electrode yokulawula ixhunyiwe ukudlulisela amandla kagesi ngasikhathi sinye, Kuzoba yisimo sokuqhuba. Lapho isivuliwe, amandla wokulawula alahlekelwa umphumela wokulawula. Akunandaba noma ngabe kukhona i-voltage yokulawula noma ubukhulu bevolthi yokulawula, kuzohlala kusesimweni sokuqhuba. Uma ufuna ukucisha, Kuphela ukunciphisa i-anode voltage kunani elithile elibucayi noma ukuhlehlisa.

Izikhonkwane eziningi ze-triac zihlelwe ukusuka kwesobunxele kuye kwesokudla ngokulandelana kwe-T1, T2, ne-G (lapho iphini le-electrode liphansi, libheke ohlangothini nezinhlamvu). Usayizi we-pulse pulse ungezwe ku-electrode G yokulawula noma Lapho isikhathi sishintsha, singashintsha ubukhulu be-conduction yamanje.

Umehluko ne-thyristor ye-unidirectional ngukuthi lapho ubukhulu be-pulse ye-trigger ku-thyristor G ye-bidirectional ishintsha, isiqondiso sayo sokuqhuba siyashintsha ngokushintsha kwe-polarity, ukuze umthwalo we-AC ulawulwe. Ngemuva kokuqalwa, i-silicon ingaqhuba kuphela ohlangothini olulodwa kusuka ku-anode kuya ku-cathode, ngakho-ke i-thyristor ingaba nge-unidirectional kanye ne-bidirectional.

Ama-Thyristors asetshenziswa kakhulu ekukhiqizeni ngogesi, njenge-MCR-100 yendlela eyodwa ne-TLC336 yezindlela ezimbili.