Switching fais fab mov Circuit Court tsis oscillate
Kev saib xyuas ntawm kev hloov hluav taws xob tsis vibrate, koj tuaj yeem nqa lub photocoupler los ua ib qho kev sib cais, ua ntej txiav txim siab seb lub photocoupler lossis photocoupler ua ntej qhov tsis ua haujlwm, thiab tom qab ntawd ib kauj ruam los ntawm kauj ruam kom nqaim qhov kev tshawb nrhiav, kev ua haujlwm tshwj xeeb yog raws li hauv qab no: thawj photocoupler ncaj qha luv-circuit, lub photocoupler luv luv-circuit yog yooj yim heev, ncaj qha ib pawg ntawm tin weld yuav ua tau, thiaj li hais tias nws yog sib npaug rau txo cov photocoupler ntawm lub internal kuj, luv luv-circuit photocoupler, thiab ces peb ntsuas qhov voltage. , yog hais tias qhov ntsuas ntawm lub ntsiab voltage tsis tau hloov, qhov txhaum yog nyob rau hauv lub photocoupler! Tom qab lub voj voog, ntawm qhov tsis sib xws, ua ntej lub voj voog optocoupler. Ntawm no switching fais fab mov nrog lub teeb load, ib co switching fais fab mov tsis muaj load tsis vibrate.
Yog hais tias qhov txhaum yog nyob rau hauv pem hauv ntej ntawm lub optocoupler, feem ntau xyuas seb lub AC fais fab input muaj teeb meem, seb lub capacitor Circuit Court yog qhib, nrog rau kev tswj nti los xyuas cov nti fais fab mov thiab cov nti pins ntawm qhov tseeb voltage rau hauv av. Txawm hais tias peb muab lub photocoupler luv Circuit Court, tab sis kuj yuav txiav txim seb lub photocoupler nws tus kheej yog faulty.
Yog hais tias lub optocoupler, xyuas seb lub switching transformer muaj ib tug tig-rau-tig luv luv Circuit Court los yog qhib Circuit Court, yog hais tias lub switching transformer muaj ib tug luv luv Circuit Court, ces nws yuav tsum tsis txhob xav tsis thoob seb lub spike absorption circuit yog tshwm sim los ntawm ib tug luv luv Circuit Court. tiv thaiv qhov tsis ncaj ncees lawm, vim tias qhov hloov pauv hloov pauv tsis zoo qhov yuav muaj tsawg heev, lub mem tes dav hloov pauv transistor luv luv yuav ua rau lub voj voog tsis vibrate.
Yog tias qhov kev txhim kho tsis txaus los txiav txim siab seb qhov kev puas tsuaj hauv online thawj zaug, nws yog qhov teeb meem me ntsis, tshem tawm qhov ntsuas, yog li qhov tseeb dua. Yog hais tias cov qub tshem tawm tsis yog ib qho teeb meem, ces koj tuaj yeem teeb meem nws qhov kev txhaum cuam tshuam nrog cov khoom siv me me, thiab maj mam nqaim qhov kev tshawb nrhiav los txiav txim qhov teeb meem, hwj txwv thiab pob muag ua ke, uas tuaj yeem yooj yim ua rau lub ntsej muag tsis ua haujlwm. ib tug dawb paug, tsis paub yuav pib qhov twg.
Raws li hais txog kev vibration, kuv kuj piav qhia luv luv ntawm no: AC hauv cov txheej txheem dhau los ua DC, AC mains thawj kho thiab lim rau hauv DC rau hluav taws xob circuits, Circuit Court no suav nrog ntau zaus oscillator Circuit Court, uas yog, DC rau hauv qhov sib txawv. zaus los yog mem tes dav ntawm mem tes, qhov no yog ib qho tseem ceeb heev nyob rau hauv switching circuits, lub input voltage hloov los yog lub load nce thiab txo, lub oscillator circuit yuav raug kho los ntawm lub zaus los yog mem tes dav kom cov zis ruaj khov. Los yog pulse dav kom cov zis ruaj khov, qhov no yog nws lub luag haujlwm, xav txog lub luag haujlwm no ntawm chav kawm, peb yuav tsum vibrate, tsis txhob vibrate ntawm lub switching fais fab mov tsis ua hauj lwm, uas yog sib npaug los kho qhov hluav taws kub los yog tsis tswj.
