Umsebenzi oyinhloko we-optocoupler kusekethe yokuphakelwa kwamandla ukubona ukuhlukaniswa ngenkathi ukuguqulwa kwe-photoelectric futhi ugweme ukuphazamiseka okulinganayo.Umsebenzi wokukhipha isixhumi ugqame kakhulu kusekethe.
Isignali ihamba ngendlela eyodwa.Okokufaka nokuphumayo kuhlukaniswe ngogesi ngokuphelele.Isignali yokuphumayo ayinamthelela kokokufaka.Ikhono eliqinile lokulwa nokuphazamiseka, ukusebenza okuzinzile, akukho ukuthintana, impilo ende yesevisi nokusebenza kahle kokudlulisela phambili.I-Optocoupler iyithuluzi elisha elakhiwa ngawo-1970.Njengamanje, isetshenziswa kakhulu ekufakeni ugesi, ukuguqulwa kweleveli, ukuhlanganisa i-interstage, isekethe yokushayela, ukushintshwa kwesekethe, i-chopper, i-multivibrator, ukuhlukaniswa kwesignali, ukuhlukaniswa kwe-interstage, i-pulse amplification circuit, insimbi yedijithali, ukudlulisa isignali yebanga elide, i-pulse amplifier, okuqinile -idivayisi yesimo, i-state relay (SSR), ithuluzi, imishini yokuxhumana kanye nesixhumi esibonakalayo se-microcomputer.Kugesi oshintshwayo we-monolithic, i-optocoupler yomugqa isetshenziselwa ukwakha isekethe yempendulo ye-optocoupler, futhi umjikelezo wemisebenzi ushintshwa ngokulungisa isiphetho sokulawula samanje ukuze kuzuzwe inhloso yokulawulwa kwamandla kagesi okunembile.
Umsebenzi oyinhloko we-optocoupler ekushintsheni ukunikezwa kwamandla ukuhlukanisa, ukunikeza isignali yempendulo nokushintsha.Ukunikezwa kwamandla kwe-optocoupler kumjikelezo wokunikezwa kwamandla okushintshwa kunikezwa yi-voltage yesibili ye-high-frequency transformer.Lapho i-voltage ephumayo iphansi kune-voltage ye-zener, vula i-optocoupler yesiginali futhi ukhuphule umjikelezo womsebenzi ukuze ukhuphule i-voltage ephumayo.Ngokuphambene nalokho, ukuvala i-optocoupler kuzonciphisa umjikelezo womsebenzi futhi kunciphise i-voltage ephumayo.Lapho umthwalo wesibili we-high-frequency transformer ulayishwa ngokweqile noma i-switch circuit ihluleka, akukho ukunikezwa kwamandla kwe-optocoupler, futhi i-optocoupler ilawula umjikelezo wokushintshwa ukuze ungadlidlizi, ukuze uvikele ishubhu lokushintsha ekushisweni.I-Optocoupler ivame ukusetshenziswa ne-TL431.Ama-resistors amabili athathwa njengesampula ochungechungeni lwetheminali engu-431r ukuze aqhathaniswe nesiqhathanisi sangaphakathi.Khona-ke, ngokusho kwesignali yokuqhathanisa, ukumelana komhlabathi kwe-431k ekupheleni (ukuphela lapho i-anode ixhunywe khona ne-optocoupler) kulawulwa, bese ukukhanya kwe-diode ekhipha ukukhanya ku-optocoupler kulawulwa.(kunama-diode akhipha ukukhanya kolunye uhlangothi lwe-optocouupler nama-phototransistors ngakolunye uhlangothi) ubukhulu bokukhanya obudlulayo.Lawula ukumelana ekugcineni kwe-CE kwe-transistor ngakolunye uhlangothi, shintsha i-chip yedrayivu yamandla e-LED, futhi ulungise ngokuzenzakalelayo umjikelezo womsebenzi wesiginali yokuphumayo ukuze ufinyelele inhloso yokuqina kwamandla kagesi.
Lapho izinga lokushisa le-ambient lishintsha kakhulu, ukukhukhuleka kwezinga lokushisa kwe-amplification factor kukhulu, okungafanele kubonwe yi-optocoupler.Isekethe ye-Optocoupler iyingxenye ebaluleke kakhulu yokushintsha isekethe yokunikezwa kwamandla.
Isikhathi sokuthumela: May-03-2022