Thaum lub LED hloov lub hwj chim mov muaj ib tug fuse blown txhaum, nws txhais tau hais tias muaj teeb meem nrog lub internal circuits ntawm lub hwj chim mov.
Thaum cov khoom siv hluav taws xob ua haujlwm ntawm high voltage thiab high tam sim no, kev hloov pauv thiab nce siab hauv daim phiaj hluav taws xob yuav ua rau cov khoom siv hluav taws xob tam sim no nce sai, ua rau lub fuse tau tawg.
Maintenance ntsiab lus:
Lub hom phiaj yog los xyuas cov rectifier diodes ntawm lub hwj chim input kawg, high-voltage lim electrolytic capacitors, lub inverter fais fab hloov raj, thiab lwm yam., thiab xyuas seb cov khoom no puas puas, qhib Circuit Court, puas, thiab lwm yam.
Rau qhov teeb meem ntawm cov tshuab fuses, thawj zaug xyuas cov khoom sib txawv ntawm lub rooj tsav xwm hauv Circuit Court kom pom tias qhov chaw ntawm cov khoom no puas tau hlawv thiab seb puas muaj cov electrolyte dhau lawm. Yog tias tsis muaj qhov xwm txheej zoo li no, siv lub multimeter los ntsuas seb lub raj hloov pauv puas muaj qhov cuam tshuam luv luv.
LED switching fais fab mov txhaum kho
Xa mus rau daim duab 1: LED switching fais fab mov
Cov kev ceev faj
Thaum pom tias muaj kev puas tsuaj, nws raug txwv tsis pub pib lub tshuab ncaj qha tom qab hloov pauv, vim tias lwm cov khoom siv hluav taws xob tseem muaj qhov tsis zoo, thiab cov khoom hloov pauv yuav puas.
Tsuas yog tom qab kev tshuaj ntsuam xyuas thiab ntsuas tag nrho cov khoom siv hluav taws xob siab ntawm cov hluav taws xob saum toj no tuaj yeem txiav txim siab qhov teeb meem ntawm lub tshuab fuse.
2. Tsis muaj DC voltage tso zis los yog tsis ruaj tsis khov voltage tso zis
Lub fuse yog nyob rau hauv zoo, thiab nyob rau hauv load, tsis muaj qhov tso zis ntawm DC voltage ntawm txhua theem.
Lub ntsiab yog vim li cas: qhib Circuit Court thiab luv Circuit Court nyob rau hauv lub hwj chim mov, overvoltage thiab overcurrent tiv thaiv Circuit Court tsis ua hauj lwm, auxiliary fais fab mov tsis ua hauj lwm, oscillation Circuit Court tsis ua hauj lwm, fais fab mov overload, tawg ntawm rectifier diode nyob rau hauv high zaus rectifier lim circuit, to ntawm lim capacitor tos .
Tom qab ntsuas cov khoom thib ob nrog lub tshuab multimeter thiab txiav txim siab qhov kev puas tsuaj ntawm lub siab-zaus rectifier diode thiab luv-circuit ntawm lub load, yog tias qhov tso zis yog xoom nyob rau lub sijhawm no, nws yog qhov tseeb tias kev tswj xyuas Circuit Court ntawm cov khoom siv hluav taws xob yog xoom. ua txhaum.
Yog tias muaj qee qhov hluav taws xob tso tawm, nws txhais tau hais tias lub hauv ntej-kawg Circuit Court ua haujlwm ib txwm, thiab qhov txhaum yog nyob rau hauv high-frequency rectifier thiab lim circuit.
Lub high-frequency lim Circuit Court yog tsim los ntawm ib tug rectifier diode thiab ib tug low-voltage lim capacitor los tsim ib tug DC voltage tso zis. Kev tawg ntawm lub rectifier diode yuav ua rau tsis muaj qhov hluav taws xob tso tawm hauv Circuit Court, thiab cov xau ntawm lub lim capacitor yuav ua rau cov zis voltage tsis ruaj khov thiab lwm yam txhaum.
Cov khoom puas tuaj yeem raug kuaj pom los ntawm kev ntsuas qhov sib thooj nrog lub multimeter.
3. Tsis muaj zog load peev
Lub peev xwm tsis zoo ntawm cov khoom siv hluav taws xob yog qhov ua txhaum ntau, uas feem ntau tshwm sim hauv cov khoom siv hluav taws xob qub lossis cov khoom siv hluav taws xob ntev. Vim yog kev laus ntawm ntau yam khoom, kev ua haujlwm ntawm lub raj xa hluav taws xob tsis ruaj khov, thiab cov cua sov dissipation tsis ua raws sijhawm.
Maintenance ntsiab lus:
Nws yog ib qho tsim nyog yuav tsum tau ua tib zoo saib xyuas seb Zener diode puas tsim hluav taws xob thiab xau, lub rectifier diode puas, lub high-voltage lim capacitor puas, thiab lwm yam, kom paub seb qhov twg yog qhov txhaum, thiab tom qab ntawd kho lossis hloov cov cuab yeej hauv. ib hom phiaj.
Peb lub laj thawj rau qhov tsis ua haujlwm ntawm LED hloov hluav taws xob tau qhia saum toj no, thiab kuv vam tias yuav pab tau rau txhua tus.
