1. Kab tsis ua hauj lwm
Kab faults, nrog rau kev puas tsuaj rau cov hlua hluav taws xob, tsis muaj hluav taws xob, kev sib cuag tsis zoo ntawm qhov chaw nres nkoj oxidation, thiab lwm yam. Ua kom pom tseeb ntawm kev tshuaj xyuas seb cov kab nkag thiab cov kab hluav taws xob puas siv tau.
Yog tias txoj kab tsis raug, nws tuaj yeem daws tau los ntawm kev hloov cov hlua hluav taws xob.
2. Cov zis voltage siab dhau lawm
Lub siab tso zis voltage feem ntau yog los ntawm qhov voltage-stabilizing sampling thiab voltage-stabilizing tswj circuits. Nyob rau hauv lub kaw tswj voj tsim los ntawm DC tso zis, sampling resistor, yuam kev sampling amplifier xws li TL431, optocoupler, hwj chim tswj nti thiab lwm yam circuits, tej teeb meem nyob rau hauv ib qho ntawm cov qhov chaw yuav ua rau cov zis voltage nce.
3. Cov zis voltage tsawg dhau
Cov hauv qab no yog cov laj thawj tseem ceeb rau cov zis hluav taws xob tsawg:
(1) Lub sijhawm luv luv ntawm kev hloov hluav taws xob hloov hluav taws xob (tshwj xeeb tshaj yog DC / DC converter luv luv lossis kev ua haujlwm tsis zoo, thiab lwm yam), thaum lub sijhawm no, ua ntej txiav tag nrho cov khoom siv hluav taws xob hloov hluav taws xob, thiab xyuas seb qhov hloov hluav taws xob hloov hluav taws xob puas yog. faulty los yog load Circuit Court faulty. Yog hais tias lub load Circuit Court yog disconnected thiab qhov voltage tso zis yog ib txwm, nws txhais tau hais tias lub load yog hnyav heev; lossis yog tias nws tseem txawv txav, qhov hloov hluav taws xob hloov hluav taws xob tsis raug.
(2) Qhov tsis ua hauj lwm ntawm lub lim capacitor lossis rectifier diode ntawm qhov tso zis voltage kawg tuaj yeem txiav txim los ntawm txoj kev hloov.
(3) Kev ua haujlwm ntawm lub raj hloov pauv yog degraded, uas ua rau lub raj hloov pauv tsis ua haujlwm ib txwm muaj, uas ua rau muaj zog sab hauv ntawm cov khoom siv hluav taws xob thiab txo cov peev txheej.
(4) Qhov tsis zoo hloov pauv hloov pauv yuav tsis tsuas yog ua rau cov zis hluav taws xob poob qis, tab sis kuj ua rau tsis txaus siab ntawm lub raj hloov thiab ua rau lub raj hloov pauv.
(5) Lub 300V lim capacitor yog qhov tsis zoo, ua rau lub zog tsis zoo ntawm cov khoom siv hluav taws xob, thiab cov zis hluav taws xob yuav poob sai li sai tau thaum lub load txuas.
4. Kev tuav pov hwm kub hnyiab tawm lossis tawg
Feem ntau xyuas tus choj rectifier, diodes, hloov cov raj thiab cov lim dej loj ntawm 300 volts. Tej zaum nws yuav ua rau lub fuse hlawv thiab ua dub, los yog nws yuav tshwm sim los ntawm ib qho teeb meem nrog lub anti{1}} jamming circuit.
Tshwj xeeb, nws yuav tsum raug sau tseg tias lub fuse raug hlawv vim qhov tawg ntawm lub raj hloov, uas feem ntau hlawv tawm lub hwj chim tswj nti thiab qhov ntsuas tam sim no resistor. Lub thermistor kuj tseem yooj yim rau hlawv tawm nrog rau lub fuse.
Cov kev ua txhaum ntau thiab kev saib xyuas ntawm lub charger / fais fab adapter tau hais ntawm no. Tsis tas li ntawd, peb yuav tsum tau xyuam xim rau kev saib xyuas txhua hnub thiab kev saib xyuas ntawm lub charger / fais fab adapter, uas tuaj yeem txo qhov tshwm sim ntawm qhov yuam kev thiab ua kom lub neej ua haujlwm ntev.
5. Lub fuse yog qhov qub, tsis muaj qhov tso zis hluav taws xob
Lub fuse yog qhov qub thiab tsis muaj qhov hluav taws xob tso tawm qhia tias lub zog hloov pauv tsis ua haujlwm lossis tau nkag mus rau hauv lub xeev tiv thaiv. Thawj kauj ruam yog txhawm rau txheeb xyuas tus nqi ntawm qhov pib- nce voltage ntawm qhov pib- nce tus pin ntawm lub zog tswj nti. Yog tias tsis muaj qhov pib- nce voltage lossis pib- nce voltage tsawg dhau, xyuas seb cov khoom txuas nrog rau qhov pib- nce tus pin thiab pib- nce resistor yog to.
Yog tias lub zog tswj nti yog qhov qub, qhov txhaum tuaj yeem pom sai sai los ntawm kev saib xyuas saum toj no. Yog tias muaj qhov pib- nce voltage, ntsuas seb qhov tso zis tawm ntawm cov nti tswj tau muaj qhov siab thiab qib qis dhia thaum lub sijhawm fais fab -on. Yog tias tsis muaj dhia, nws txhais tau hais tias cov nti tswj tau puas lawm, cov khoom siv hluav taws xob peripheral oscillation raug puas tsuaj los yog kev tiv thaiv Circuit Court yog faulty. Chip, xyuas cov khoom siv peripheral, kos ib qho los ntawm ib qho; yog tias nws dhia, feem ntau, lub raj hloov pauv tsis zoo lossis puas.