Umsebenzi ophambili we-optocoupler kwisekethe yonikezelo lwamandla kukuqonda ukubekwa wedwa ngelixa ukuguqulwa kwe-photoelectric kunye nokuphepha ukuphazamiseka okufanayo.Umsebenzi we-disconnector ubalasele ngakumbi kwisekethe.
Umqondiso uhamba kwicala elinye.Igalelo kunye nemveliso zodwa ngokupheleleyo ngombane.Umqondiso wemveliso awunayo impembelelo kwigalelo.Ikhono elinamandla lokuchasana nokuphazamiseka, ukusebenza okuzinzile, akukho qhagamshelwano, ubomi obude benkonzo kunye nokusebenza kakuhle kokuhanjiswa.I-Optocoupler sisixhobo esitsha esaphuhliswa kwi-1970s.Okwangoku, isetyenziswa ngokubanzi kukufakelwa kombane, ukuguqulwa kwenqanaba, ukudityaniswa kwe-interstage, isekethe yokuqhuba, isekethe yokutshintsha, i-chopper, i-multivibrator, ukwahlukaniswa komqondiso, ukwahlukaniswa kwe-interstage, i-pulse amplification circuit, isixhobo sedijithali, ukuhanjiswa komqondiso womgama omde, i-pulse amplifier, eqinileyo. -isixhobo sombuso, i-state relay (SSR), isixhobo, izixhobo zonxibelelwano kunye ne-microcomputer interface.Kwi-monolithic switching power supply, i-optocoupler yomgca isetyenziselwa ukwenza i-optocoupler feedback circuit, kwaye umjikelo womsebenzi utshintshwa ngokulungelelanisa i-terminal terminal yangoku ukufezekisa injongo yolawulo oluchanekileyo lombane.
Umsebenzi oyintloko we-optocoupler ekutshintsheni ukunikezelwa kwamandla kukuhlukanisa, ukubonelela ngomqondiso wempendulo kunye nokutshintsha.Ukunikezelwa kwamandla e-optocoupler kwi-switching power supply circuit inikezelwa ngumbane wesibini we-high-frequency transformer.Xa i-voltage ephumayo isezantsi kune-voltage ye-zener, vula i-optocoupler yomqondiso kwaye unyuse umjikelo womsebenzi ukunyusa umbane wokuphuma.Ngokuchasene noko, ukucima i-optocoupler kuya kunciphisa umjikelo womsebenzi kunye nokunciphisa i-voltage ephumayo.Xa umthwalo wesibini we-high-frequency transformer ugcwele kakhulu okanye isiphaluka sokutshintsha sihluleka, akukho mbane we-optocoupler, kwaye i-optocoupler ilawula isiphaluka sokutshintsha ukuba singadlidliza, ukwenzela ukukhusela ityhubhu yokutshintsha ekutshisweni.I-Optocoupler idla ngokusetyenziswa kunye ne-TL431.I-resistors ezimbini zithathwe kwi-series kwi-terminal ye-431r xa kuthelekiswa nomqhathanisi wangaphakathi.Emva koko, ngokuhambelana nomqondiso wokuthelekisa, ukuchasana komhlaba kwe-431k ekupheleni (isiphelo apho i-anode idibaniswe ne-optocoupler) ilawulwa, kwaye ke ukukhanya kwe-diode ekhupha ukukhanya kwi-optocoupler ilawulwa.(kukho ii-diode ezikhupha ukukhanya kwelinye icala le-optocoupler kunye ne-phototransistors kwelinye icala) ukuqina kokukhanya okudlulayo.Lawula ukuxhathisa ekupheleni kwe-CE ye-transistor kwelinye icala, tshintsha i-chip ye-LED ye-drive drive, kwaye ulungelelanise ngokuzenzekelayo umjikelo womsebenzi wesiginali yemveliso ukufezekisa injongo yokuzinzisa umbane.
Xa ubushushu be-ambient buguquka ngokukhawuleza, ukufudumala kweqondo lokushisa kwe-amplification factor kukhulu, okungafanele kuphunyezwe yi-optocoupler.Isekethe ye-Optocoupler yinxalenye ebaluleke kakhulu yokutshintsha umbane wesekethe.
Ixesha lokuposa: May-03-2022