1. Thaum overhauling lub switching fais fab mov, thawj zaug xyuas lub Circuit Court nrog ib tug kuj tsis ua hauj lwm tus nqi
Thaum kho dua qhov hloov hluav taws xob hloov, yog tias nws tau txiav txim siab tias yuav muaj teeb meem hauv ob lossis ntau qhov chaw tib lub sijhawm, ib feem nrog qhov tsis ua haujlwm siab dua yuav tsum tau kuaj xyuas ua ntej. Nws yog kev tiv thaiv overvoltage los ntawm qhov teeb meem ntawm qhov hluav taws xob regulator Circuit Court uas ua rau cov zis voltage siab dhau lawm, los yog nws yuav tshwm sim los ntawm ib tug luv luv Circuit Court los yog overcurrent txhaum ntawm ib tug tej yam output kawg ntawm lub switching fais fab mov. Txawm li cas los xij, vim tias qhov ua tau ntawm yav tas los muaj ntau dua li qhov qub, thaum kho dua tshiab, nws yuav tsum xub xyuas seb puas muaj qhov luv luv lossis overcurrent txhaum ntawm qhov hluav taws xob tso tawm kawg ntawm qhov hloov hluav taws xob. Tom qab ntawd nias lub overvoltage tiv thaiv los xyuas qhov voltage regulator circuit.
2. Thaum overhauling lub switching fais fab mov, xyuas cov khoom hnav ua ntej
Nyob rau hauv cov nqe lus ntawm cov qauv ntawm switching fais fab mov, txhua switching fais fab mov muaj nws tus kheej zoo thiab tsis zoo, raws li zoo raws li ib tug kuj ruaj hnav qhov chaw. Nyob rau hauv cov nqe lus ntawm kev siv lub sij hawm ntawm cov khoom siv hluav taws xob, cov khoom hnav ntawm kev hloov hluav taws xob kuj muaj qee cov cai. Piv txwv li, thaum lub zog hloov hluav taws xob siv tau ntev, lub tshuab hluav taws xob electrolytic capacitor tsis ua haujlwm ntawm qhov kub kawg ntawm kev hloov hluav taws xob hloov hluav taws xob yog qhov siab. Thaum overhauling lub switching fais fab mov, ua ntej overhauling raws li ib tug pa txoj kev, kev soj ntsuam ntawm cov hnav cov khoom yuav tsum tau teem rau, uas yuav ua tau ib tug multiplier nyhuv nrog ib nrab ntawm kev rau siab.
3. Thaum overhauling lub switching fais fab mov, ua zoo siv txoj kev soj ntsuam
(1) Saib xyuas seb lub fuse hauv kev pov hwm puas tau tawg, thiab txiav txim siab seb lub tshuab hluav taws xob hloov pauv puas muaj qhov ua txhaum loj luv luv.
Qhov ncaj qha ua rau lub fuse tshuab nyob rau hauv AC 220V rectifier lim Circuit Court tsuas yog nyob rau hauv ob peb lub Cheebtsam kho nyob rau hauv lub kub kawg ntawm lub switching fais fab mov, uas yog, lub hloov raj, lub 300V loj lim capacitor, thiab qhov tawg ntawm AC 220V. rectifier diode. Yog li ntawd, yog tias koj pom tias lub fuse hauv kev tuav pov hwm tau tawg, yuav tsum muaj teeb meem nrog ib qho ntawm cov khoom saum toj no.
(2) Saib seb puas yog sab saum toj ntawm lub electrolytic capacitor nyob rau hauv lub switching fais fab mov yog bulging, thiab koj yuav txiav txim seb puas muaj teeb meem nrog lub capacitor no.
Yog hais tias lub capacitor swells, nws txhais tau hais tias lub capacitor yeej tsis siv thiab yuav tsum tau hloov. Nyob rau tib lub sijhawm, nws tseem yuav tsum tau kuaj xyuas qhov laj thawj ntawm qhov bulging ntawm lub capacitor, txawm tias nws puas lawm tom qab ua haujlwm ntev, lossis puas los ntawm qhov hluav taws xob ntau dhau, thiaj li yuav tau sau cov tshuaj zoo.
4. Thaum overhauling lub switching fais fab mov, nws yog ib qho tsim nyog yuav tau kawm cov txuj ci ntawm kev siv txoj kev voltage
Siv txoj kev siv hluav taws xob los kho qhov hloov hluav taws xob hloov hluav taws xob, nws tuaj yeem txiav txim siab seb qhov txhaum puas nyob hauv qhov hloov hluav taws xob hloov hluav taws xob, thiab qhov twg ntawm qhov hloov hluav taws xob hloov hluav taws xob nyob. Cov ntsiab lus tseem ceeb ntawm txoj kev siv hluav taws xob los kho qhov hloov hluav taws xob hloov hluav taws xob yog: AC input kawg ntawm lub zog hloov hluav taws xob, qhov tso zis kawg ntawm lub lim rectifier, ntws thiab lub rooj vag ntawm lub raj hloov, pib kawg ntawm lub zog hloov. muab kev tswj nti, qhov tso zis kawg ntawm lub zog hloov hluav taws xob, thiab lwm yam Los ntawm kev sib piv cov nqi ntsuas nrog tus nqi ib txwm muaj, qhov yuam kev tuaj yeem txheeb xyuas tau.
5. Thaum overhauling lub switching fais fab mov, nws yog ib qho tsim nyog yuav tau kawm cov txuj ci ntawm kev siv txoj kev tiv thaiv
Txoj kev tiv thaiv tuaj yeem txiav txim siab seb puas muaj qhov cuam tshuam luv luv thiab qhov ua txhaum loj ntawm txhua qhov hluav taws xob tso tawm hluav taws xob ntawm lub tshuab hluav taws xob hloov hluav taws xob, thiab paub meej tias qee yam ntawm cov khoom siv hluav taws xob hloov pauv tau tawg, qhib Circuit Court lossis to. Txoj kev tiv thaiv feem ntau yog siv los xyuas qhov qhib Circuit Court ntawm fuse resistor hauv lub raj hloov thiab AC 220V rectifier thiab lim.
Hauv cov xwm txheej hauv qab no, txoj kev tiv thaiv tuaj yeem siv rau kev tshuaj xyuas.
①Thaum qee qhov tso zis hluav taws xob ntawm cov khoom siv hluav taws xob hloov hluav taws xob muaj qhov hluav taws xob me me, thiab qee qhov tso zis hluav taws xob tsis muaj qhov hluav taws xob txhua lub sijhawm, nws yog qhov tsim nyog los ntsuas lub davhlau ya nyob twg tsis muaj qhov hluav taws xob tawm los ntawm txoj kev ua haujlwm. Yog hais tias tus nqi kuj nyob ze rau xoom, nws txhais tau hais tias lub rectifier diode los yog load ntawm cov zis kawg muaj ib tug puas txhaum.
②Thaum qhov hluav taws xob ntws ntawm lub raj xa hluav taws xob yog xoom, nws yuav tsum tau kuaj xyuas AC 220V choj rectifier lim Circuit Court los ntawm txoj kev ua haujlwm, thiab xyuas seb lub fuse Circuit Court txuas hauv series nrog AC 220V choj rectifier qhib.
③Thaum lub fuse nyob rau hauv lub fuse yog cua tshuab, nws yog ib qhov tsim nyog los siv txoj kev tiv thaiv los ntsuas qhov tsis kam ntawm qhov hloov mus rau hauv av. Yog tias qhov ntsuas tau ze rau xoom, nws txhais tau hais tias yog vim li cas rau lub tshuab cua tshuab yog qhov tawg ntawm qhov hloov lossis 300V loj lim capacitor thiab choj rectifier.
6. Thaum kho qhov hloov pauv hloov hluav taws xob, nws yuav tsum tau kawm cov txuj ci ntawm kev siv txoj kev tam sim no
Txoj kev tam sim no tuaj yeem txiav txim siab seb qhov tseem ceeb ntawm cov khoom siv hluav taws xob hloov pauv yog qhov txawv txav hauv kev ua haujlwm ntawm qhov hloov hluav taws xob los ntawm qhov overcurrent. Txoj kev yog los txuas lub ammeter ntawm qhov taw tes uas qhov tso zis tseem ceeb kawg ntawm kev hloov hluav taws xob hloov pauv tau raug cuam tshuam los ntawm lub ntsiab load, raws li pom hauv daim duab 4-3, lub ammeter lub iav yog teem rau lub iav loj (xws li 500mA ), thiab qhov tam sim no ntawm lub sijhawm pib yog ntsuas. Yog tias qhov tam sim no tshaj qhov qub, nws tuaj yeem txiav txim siab tias lub ntsiab load yog qhov qub. Yog tias qhov tam sim no tshaj qhov qub, nws tuaj yeem txiav txim siab tias lub ntsiab load muaj qhov cuam tshuam luv luv.
