Isi ọrụ nke optocoupler na sekit ọkụ eletrik bụ ịchọpụta ikewapụ onwe ya mgbe a na-agbanwe fotoelectric ma zere nnyonye anya. Ọrụ nke disconnector pụtara ìhè karịsịa na sekit ahụ.
Mgbaàmà ahụ na-aga n'otu ụzọ. Ntinye na mmepụta na-anọpụ iche kpamkpam na eletriki. Mgbaàmà mmepụta enweghị mmetụta ọ bụla na ntinye. Ike mgbochi nnyonye anya siri ike, ọrụ kwụsiri ike, enweghị kọntaktị, ndụ ọrụ ogologo na arụmọrụ nnyefe dị elu. Optocoupler bụ ngwaọrụ ọhụrụ emepụtara na 1970s. Ugbu a, a na-ejikarị ya eme ihe na mkpuchi eletriki, mgbanwe ọkwa, njikọ interstage, sekit driving, sekit switching, chopper, multivibrator, mwepụ mgbaàmà, mwepụ interstage, sekit amplification pulse, ngwa dijitalụ, nnyefe mgbaàmà ogologo oge, amplifier pulse, ngwaọrụ siri ike, relay steeti (SSR), ngwa, ngwa nkwukọrịta na njikọ microcomputer. Na ọkọnọ ike mgbanwe monolithic, a na-eji optocoupler linear emepụta sekit nzaghachi optocoupler, a na-agbanwekwa okirikiri ọrụ site na ịgbanwe oge njikwa iji mezuo ebumnuche nke iwu voltaji ziri ezi.
Isi ọrụ nke optocoupler n'ịgbanwe ọkụ eletrik bụ ikewapụ onwe ya, inye mgbaama nzaghachi na mgbaama. Ọkụ nke optocoupler na sekit ọkụ eletrik na-enye site na voltaji nke abụọ nke transformer ugboro ugboro dị elu. Mgbe voltaji mmepụta dị ala karịa voltaji zener, gbanye optocoupler mgbaàmà ma mụbaa okirikiri ọrụ iji mee ka voltaji mmepụta dịkwuo elu. N'ụzọ megidere nke ahụ, ịgbanyụ optocoupler ga-ebelata okirikiri ọrụ ma belata voltaji mmepụta. Mgbe ibu nke abụọ nke transformer ugboro ugboro dị oke ibu ma ọ bụ sekit mgbaama ahụ ada ada, enweghị ike optocoupler, optocoupler na-achịkwa sekit mgbaama ahụ ka ọ ghara ịma jijiji, iji chebe tube mgbaama ahụ ka ọ ghara ịgba ọkụ. A na-ejikarị optocoupler eme ihe na TL431. A na-enyocha resistors abụọ ahụ n'usoro gaa na terminal 431r maka ntụnyere ya na comparator dị n'ime. Mgbe ahụ, dịka ihe mgbaàmà ntụnyere si dị, a na-achịkwa nguzogide ala nke njedebe 431k (ngwụcha ebe anode jikọtara ya na optocoupler), wee chịkwaa ìhè nke diode na-ewepụta ìhè na optocoupler. (enwere diode na-ewepụta ìhè n'otu akụkụ nke optocoupler na phototransistors n'akụkụ nke ọzọ) ike nke ìhè na-agafe. Jikwaa nguzogide na njedebe CE nke transistor na nsọtụ nke ọzọ, gbanwee mgbawa draịva ike LED, ma gbanwee okirikiri ọrụ nke akara mmepụta na akpaghị aka iji mezuo ebumnuche nke ịkwụsi ike voltaji.
Mgbe okpomọkụ gburugburu ebe obibi gbanwere nke ukwuu, mmụba okpomọkụ nke ihe na-eme ka ihe dịkwuo elu na-abawanye, nke optocoupler ekwesịghị ime. Sekit Optocoupler bụ akụkụ dị oke mkpa nke mgbanwe sekit ike.
Oge ozi: Mee-03-2022