Yuav ua li cas debug DC stabilized fais fab mov charger.
Debug cov kauj ruam
1. Kev kuaj pom ntawm lub tshuab tag nrho
Tom qab lub voj voog raug teeb tsa, ua tib zoo xyuas seb cov khoom puas tau teeb tsa tsis raug lossis ploj lawm, xyuas seb cov pob qij txha puas muaj vuam tsis raug, vuam virtual, lap welding, nruam vuam, thiab lwm yam, thiab xyuas seb qhov polarity ntawm lub rectifier diode thiab electrolytic capacitor puas. yog thim rov qab. , Txawm hais tias cov hlua hluav taws xob puas lawm, seb cov hlau lead txuas yog luv luv -circuited, thiab lwm yam. Yog tias muaj teeb meem, teeb meem hauv lub sijhawm. Qhov kev sim tshuaj tiv thaiv tuaj yeem ua tiav tom qab kuaj xyuas nws ib zaug thiab paub tseeb tias nws yog lawm.
2. Ntsuas qhov ua haujlwm zoo li qub
After the visual inspection is correct, perform power-on measurement of static parameters. Because the secondary load of the transformer should have a certain resistance value, and the DC resistance value is about 200Ω, use the resistance gear of the multimeter to detect the power plug. If the measured resistance value is lower than the secondary resistance value, the secondary load is short-circuited.
3. Tshawb xyuas kev ruaj ntseg fais fab
Tshawb xyuas qhov tseem ceeb xws li theem nrab ntawm lub transformer thiab cov zis kawg ntawm lub rectifier, tsom rau kev tshuaj xyuas seb puas muaj qhov pom tseeb luv luv. Yog tias muaj qhov pom tseeb luv luv, nws yuav tsum tau kuaj xyuas kom zoo thiab kuaj xyuas kom txog thaum tshem tawm qhov txhaum. Tom qab kuaj xyuas, nws tuaj yeem siv tau. Tom qab lub hwj chim qhib, koj yuav tsum ua tib zoo mloog, tsis txhob maj mus ntsuas cov ntaub ntawv thiab soj ntsuam cov txiaj ntsig, thiab ua tib zoo xav seb puas muaj cov xwm txheej txawv txav xws li haus luam yeeb, ignition, tsw, suab nrov, txawv txav, thiab lwm yam. Yog tias muaj. txhua qhov xwm txheej txawv txav, tua lub hwj chim tam sim ntawd. Re- txhawb nqa qhov kev sim tom qab tshem tawm qhov txhaum, thiab ceev faj kom nthuav dav qhov txhaum lossis txawm ua rau muaj kev sib tsoo. Qhov xwm txheej ib txwm yuav tsum yog lub teeb qhia lub hwj chim qhib.
4. Ntsuas qhov tso zis voltage
Siv lub multimeter nrog DC voltage ntawm 10V los ntsuas qhov DC voltage ntawm tus ntoo khaub lig tso zis ntsaws (ua tib zoo saib rau lub polarity ntawm cov liab thiab dub xeem coj ntawm lub multimeter), uas yuav tsum tau raws li qhov taw qhia ntawm lub toggle hloov S1. Hloov txoj hauj lwm ntawm lub toggle hloov S1, thiab cov zis voltage yuav tsum hloov raws li (100 feem pua ntawm qhov sib txawv ntawm tus nqi nominal ntawm lub vaj huam sib luag yog qhov qub, thiab tus nqi yuav tsum siab dua me ntsis ntawm qhov ntsuas voltage thaum tsis muaj load).
Toggle hloov S2 los ntsuas qhov tso zis voltage polarity, uas yuav tsum ua raws li lub vaj huam sib luag txoj hauj lwm.
