Babban aikin optocoupler a cikin da'irar samar da wutar lantarki shine gano keɓancewa yayin canza wutar lantarki da kuma guje wa tsangwama tsakanin juna. Aikin disconnector yana da matuƙar muhimmanci a cikin da'irar.
Siginar tana tafiya a hanya ɗaya. Shigarwa da fitarwa gaba ɗaya suna cikin wutar lantarki. Siginar fitarwa ba ta da wani tasiri a kan shigarwar. Ƙarfin ikon hana tsangwama, aiki mai ɗorewa, babu hulɗa, tsawon rai na sabis da ingantaccen watsawa. Optocoupler sabuwar na'ura ce da aka haɓaka a shekarun 1970. A halin yanzu, ana amfani da ita sosai a cikin rufin lantarki, juyawa matakin, haɗin tsakanin matakai, da'irar tuƙi, da'irar canzawa, chopper, multivibrator, keɓewar sigina, keɓewar tsakanin matakai, da'irar ƙara bugun jini, kayan aiki na dijital, watsa siginar nesa, amplifier na bugun jini, na'urar solid-state, relay state (SSR), kayan aiki, kayan sadarwa da kuma hanyar sadarwa ta microcomputer. A cikin samar da wutar lantarki mai canzawa ta monolithic, ana amfani da optocoupler mai layi don ƙirƙirar da'irar amsawa ta optocoupler, kuma ana canza zagayowar aiki ta hanyar daidaita wutar lantarki ta sarrafawa don cimma manufar daidaita ƙarfin lantarki daidai.
Babban aikin optocoupler wajen sauya wutar lantarki shine ware, samar da siginar amsawa da kuma sauya wutar lantarki. Ana samar da wutar lantarki ta optocoupler a cikin da'irar samar da wutar lantarki ta hanyar ƙarfin lantarki na biyu na transformer mai yawan mita. Lokacin da ƙarfin fitarwa ya yi ƙasa da ƙarfin zener, kunna optocoupler mai siginar kuma ƙara zagayowar aiki don ƙara ƙarfin fitarwa. Akasin haka, kashe optocoupler zai rage zagayowar aiki kuma ya rage ƙarfin fitarwa. Lokacin da nauyin na biyu na transformer mai yawan mita ya cika ko kuma da'irar sauyawa ta gaza, babu wutar lantarki ta optocoupler, kuma optocoupler yana sarrafa da'irar sauyawa don kada ta girgiza, don kare bututun sauyawa daga ƙonewa. Yawanci ana amfani da optocoupler tare da TL431. Ana yin samfurin resistors guda biyu a jere zuwa tashar 431r don kwatantawa da mai kwatantawa na ciki. Sannan, bisa ga siginar kwatantawa, ana sarrafa juriyar ƙasa ta ƙarshen 431k (ƙarshen inda anode ɗin ke haɗe da optocoupler), sannan ana sarrafa hasken diode mai fitar da haske a cikin optocoupler. (akwai diode masu fitar da haske a gefe ɗaya na optocoupler da phototransistors a ɗayan gefen) ƙarfin hasken da ke wucewa. Sarrafa juriya a ƙarshen CE na transistor a ɗayan ƙarshen, canza guntuwar tuƙin wutar LED, kuma daidaita zagayowar aiki ta atomatik na siginar fitarwa don cimma manufar daidaita ƙarfin lantarki.
Idan zafin yanayi ya canza sosai, raguwar zafin jiki na abin da ke ƙara girma yana da girma, wanda bai kamata a yi amfani da shi ta hanyar optocoupler ba. Da'irar optocoupler muhimmin bangare ne na sauya da'irar samar da wutar lantarki.
Lokacin Saƙo: Mayu-03-2022