Kev ua haujlwm ntawm optocoupler relay hauv fais fab mov

Lub luag haujlwm tseem ceeb ntawm optocoupler nyob rau hauv lub hwj huam mov Circuit Court yog kom paub kev sib cais thaum photoelectric hloov dua siab tshiab thiab tsis txhob muaj kev cuam tshuam.Kev ua haujlwm ntawm disconnector yog tshwj xeeb tshaj yog nyob rau hauv Circuit Court.

Lub teeb liab mus rau hauv ib qho kev taw qhia.Cov tswv yim thiab cov zis yog cais tawm hluav taws xob kiag li.Lub teeb liab tso zis tsis muaj qhov cuam tshuam rau lub tswv yim.Muaj zog tiv thaiv kev cuam tshuam, kev ua haujlwm ruaj khov, tsis muaj kev sib cuag, lub neej ua haujlwm ntev thiab kev sib kis tau zoo.Optocoupler yog ib qho khoom siv tshiab tsim nyob rau xyoo 1970s.Tam sim no, nws yog dav siv nyob rau hauv hluav taws xob rwb thaiv tsev, theem conversion, interstage coupling, tsav tsheb Circuit Court, switching circuit, chopper, multivibrator, teeb liab cais, interstage cais, mem tes amplification circuit, digital instrument, long-destance signal kis, pulse amplifier, solid. -state ntaus ntawv, lub xeev relay (SSR), ntsuas, khoom siv sib txuas lus thiab microcomputer interface.Nyob rau hauv lub monolithic switching fais fab mov, lub linear optocoupler yog siv los tsim lub optocoupler tawm tswv yim Circuit Court, thiab lub luag hauj lwm voj voog yog hloov los ntawm kev kho lub davhlau ya nyob twg tswj tam sim no kom tiav lub hom phiaj ntawm kev cai voltage.

Lub luag haujlwm tseem ceeb ntawm optocoupler hauv kev hloov hluav taws xob yog cais tawm, muab cov lus qhia tawm tswv yim thiab hloov.Lub hwj chim mov ntawm optocoupler nyob rau hauv lub switching fais fab mov Circuit Court yog muab los ntawm lub thib ob voltage ntawm lub high-frequency transformer.Thaum cov zis hluav taws xob qis dua qhov zener voltage, tig rau lub teeb liab optocoupler thiab nce lub voj voog ua haujlwm kom nce cov zis voltage.Ntawm qhov tsis sib xws, tig tawm lub optocoupler yuav txo lub voj voog lub luag haujlwm thiab txo cov zis hluav taws xob.Thaum lub load thib ob ntawm high-frequency transformer yog overloaded los yog hloov Circuit Court tsis ua hauj lwm, tsis muaj optocoupler fais fab mov, thiab lub optocoupler tswj lub hloov Circuit Court tsis txhob vibrate, thiaj li tiv thaiv lub hloov raj los ntawm hlawv.Optocoupler feem ntau yog siv nrog TL431.Ob lub resistors tau coj mus kuaj hauv series mus rau 431r davhlau ya nyob twg rau kev sib piv nrog cov sib piv sab hauv.Tom qab ntawd, raws li kev sib piv cov teeb liab, cov av tsis kam ntawm 431k kawg (qhov kawg qhov twg anode txuas nrog optocoupler) yog tswj, thiab tom qab ntawd qhov ci ntawm lub teeb-emitting diode hauv optocoupler yog tswj.(muaj lub teeb-emitting diodes ntawm ib sab ntawm optocoupler thiab phototransistors nyob rau sab nraud) qhov kev siv ntawm lub teeb hla dhau.Tswj qhov kev tiv thaiv ntawm CE kawg ntawm lub transistor ntawm lwm qhov kawg, hloov lub zog tsav LED nti, thiab hloov kho lub luag haujlwm ntawm lub teeb liab tso tawm kom ua tiav lub hom phiaj ntawm kev ruaj ntseg voltage.

Thaum lub ambient kub hloov sharply, qhov kub thiab txias drift ntawm lub amplification yam yog loj, uas yuav tsum tsis txhob hnov ​​qab los ntawm optocoupler.Optocoupler Circuit Court yog ib feem tseem ceeb ntawm kev hloov hluav taws xob hluav taws xob.

cuam ​​tshuam


Post lub sij hawm: May-03-2022