Shaqada Relay-ka optocoupler ee korontada

Shaqada ugu weyn ee optocoupler-ka ee wareegga korontada waa inuu ogaado go'doominta inta lagu jiro beddelka sawir-qaadista iyo ka fogaanshaha faragelinta labada dhinac. Shaqada kala-goysyadu si gaar ah ayay ugu muuqataa wareegga.

Calaamaddu waxay u socotaa hal jiho. Soo gelinta iyo wax soo saarku si buuxda ayay koronto ahaan u go'doonsan yihiin. Calaamadda wax soo saarku wax saameyn ah kuma lahan gelinta. Awood xooggan oo ka hortagga faragelinta, hawlgal deggan, xiriir la'aan, cimri dheer oo adeeg iyo hufnaan gudbin sare leh. Optocoupler waa qalab cusub oo la sameeyay 1970-yadii. Waqtigan xaadirka ah, si weyn ayaa loogu isticmaalaa dahaarka korontada, beddelka heerka, isku xirka isgoysyada, wareegga wadista, wareegga wareejinta, chopper, multivibrator, go'doominta calaamadaha, go'doominta isgoysyada, wareegga xoojinta garaaca, qalabka dijitaalka ah, gudbinta calaamadaha masaafada dheer, amplifier garaaca, qalabka adag ee gobolka, gudbinta xaaladda (SSR), qalabka, qalabka isgaarsiinta iyo isku xirka kumbuyuutarka yar yar. Sahayda korontada ee monolithic-ka ah, optocoupler-ka toosan ayaa loo isticmaalaa in lagu sameeyo wareegga jawaab celinta optocoupler, wareegga shaqadana waxaa lagu beddelaa iyadoo la hagaajinayo qulqulka terminal-ka xakamaynta si loo gaaro ujeeddada nidaaminta danabka saxda ah.

Shaqada ugu weyn ee optocoupler-ka ee beddelka korontada waa inuu go'doomiyo, bixiyo calaamad jawaab celin ah iyo badhanka. Korontada optocoupler-ka ee wareegga korontada ee beddelka korontada waxaa bixiya danabka labaad ee transformer-ka soo noqnoqda sare. Marka danabka wax soo saarku ka hooseeyo danabka zener-ka, shid optocoupler-ka calaamadda oo kordhi wareegga shaqada si loo kordhiyo danabka wax soo saarka. Taas beddelkeeda, daminta optocoupler-ka waxay yareyn doontaa wareegga shaqada waxayna yareyn doontaa danabka wax soo saarka. Marka culayska labaad ee transformer-ka soo noqnoqda sare uu buuxsamo ama wareegga badhanka uu xumaado, ma jiro sahay koronto optocoupler ah, optocoupler-kuna wuxuu xakameynayaa wareegga badhanka si uusan u gariirin, si looga ilaaliyo tuubada badhanka in la gubo. Optocoupler-ka badanaa waxaa loo isticmaalaa TL431. Labada iska caabin waxaa si taxane ah loogu qaadaa terminal-ka 431r si loo barbar dhigo isbarbardhigga gudaha. Kadib, sida ku cad calaamadda isbarbardhigga, iska caabbinta dhulka ee dhammaadka 431k (dhammaadka halka anode-ku ku xiran yahay optocoupler-ka) ayaa la xakameeyaa, ka dibna dhalaalka diode-ka iftiinka soo saaraya ee optocoupler-ka ayaa la xakameeyaa. (waxaa jira diode-yada iftiinka soo saaraya dhinac ka mid ah optocoupler-ka iyo phototransistors-ka dhinaca kale) xoogga iftiinka soo maraya. Xakamee iska caabbinta dhammaadka CE ee transistor-ka dhinaca kale, beddel jajabka wadida korontada ee LED-ka, oo si toos ah u hagaaji wareegga shaqada ee calaamadda soo saarista si loo gaaro ujeeddada xasilinta danabka.

Marka heerkulka deegaanku si xoog leh isu beddelo, heerkulka isbeddelka ee qodobka kor u qaadista ayaa weyn, taas oo aan loo baahnayn in lagu ogaado optocoupler. Wareegga optocoupler waa qayb aad muhiim u ah oo ka mid ah wareegga korantada ee beddelka.