Computer pab tau peb ntau xyoo, dhau los ua phooj ywg ntawm tsev neeg, thiab thaum nws dhau los lossis tsis muaj kev cia siab tawg, nws tuaj yeem ua rau muaj kev txaj muag nqa mus rau qhov chaw pov tseg. Tab sis muaj cov ntsiab lus uas tuaj yeem nyob ntev hauv lub neej txhua hnub. Qhov no thiab
ntau lub tshuab txias, thiab lub tshuab ua kom sov, thiab txawm tias rooj plaub nws tus kheej. Tab sis qhov tseem ceeb tshaj plaws yog BP. Lub khoos phis tawj fais fab, vim nws lub hwj chim tsim nyog hauv qhov me me, yog ib qho khoom zoo rau txhua yam kev hloov kho tshiab. Nws txoj kev hloov pauv tsis yog txoj haujlwm nyuaj.
Hloov lub khoos phis tawj fais fab rau hauv qhov chaw muaj hluav taws xob zoo
Koj yuav tsum txiav txim siab seb hom fais fab twg koj lub computer muaj, AT lossis ATX. Raws li txoj cai, qhov no yog qhia ntawm rooj plaub. Hloov cov khoom siv hluav taws xob tsuas yog ua haujlwm raws li kev thauj khoom. Tab sis cov cuab yeej ntawm ATX hom fais fab mov tso cai rau koj ua kom zoo li nws los ntawm luv luv cov xov hlau ntsuab thiab dub. Yog li, los ntawm kev sib txuas ntawm cov khoom thauj (rau AT) lossis kaw cov khoom tsim nyog (rau ATX), koj tuaj yeem pib kiv cua. Cov zis tshwm sim 5 thiab 12 volts. Qhov siab tshaj plaws tso zis tam sim no nyob ntawm lub zog ntawm PSU. Ntawm 200 W, ntawm tsib-volt tso zis, tam sim no tuaj yeem ncav cuag li 20A, ntawm 12V - txog 8A. Yog li tsis muaj nqi ntxiv, koj tuaj yeem siv lub zog zoo nrog cov txiaj ntsig zoo.
Hloov lub khoos phis tawj fais fab rau hauv qhov chaw tswj hluav taws xob
Nws yooj yim heev kom muaj PSU hauv tsev lossis tom haujlwm. Hloov kho lub tsev thaiv yog ib qho yooj yim. Nws yog ib qho tsim nyog los hloov ntau qhov kev tawm tsam thiab tshem tawm cov inductor. Hauv qhov no, qhov voltage tuaj yeem hloov kho ntawm 0 txog 20 volts. Lawm, cov dej ntws yuav nyob twj ywm hauv lawv qhov qub proportions. Yog tias koj txaus siab rau qhov siab tshaj plaws ntawm 12V, nws yog txaus rau nruab ib lub thyristor voltage regulator ntawm nws cov zis. Cov maub los Circuit Court yog yooj yim heev. Nyob rau tib lub sijhawm, nws yuav pab kom tsis txhob cuam tshuam nrog sab hauv ntawm lub khoos phis tawj.
Hloov lub khoos phis tawj fais fab rau hauv lub tsheb charger
Lub hauv paus ntsiab lus tsis txawv ntau ntawm kev tswj fais fab. Nws tsuas yog ntshaw kom hloov Schottky diodes rau cov muaj zog dua. Lub charger los ntawm lub computer fais fab mov muaj ntau qhov zoo thiab qhov tsis zoo. Qhov zoo yog qhov loj me me thiab lub teeb yuag. Transformer nco yog hnyav dua thiab tsis yooj yim rau siv. Qhov tsis zoo kuj tseem ceeb: kev thuam rau luv luv Circuit Court thiab polarity reversal.
Tau kawg, qhov kev thuam no kuj tau pom hauv cov khoom siv hluav taws xob, tab sis thaum lub ntsuas pulse tsis ua haujlwm, hloov tam sim no nrog lub zog ntawm 220V nyhav rau lub roj teeb. Nws yog qhov txaus ntshai los xav txog qhov tshwm sim ntawm qhov no rau txhua yam khoom siv thiab cov neeg nyob ze. Daim ntawv thov hauvkev tiv thaiv hluav taws xob daws qhov teeb meem no.
Ua ntej siv lub charger zoo li no, thov ua tib zoo tsim cov khoom tiv thaiv hluav taws xob. Ntxiv mus, muaj coob tus ntawm lawv ntau yam.
Yog li, tsis txhob maj muab cov khoom seem pov tseg ntawm cov cuab yeej qub. Reworking lub computer fais fab mov yuav muab nws lub neej thib ob. Thaum ua haujlwm nrog PSU, nco ntsoov tias nws lub rooj tsavxwm tau ua haujlwm tas li nrog 220V, thiab qhov no yog kev hem thawj rau neeg tuag. Ua raws li txoj cai kev nyab xeeb ntawm tus kheej thaum ua haujlwm nrog hluav taws xob.
