Qhob roj teeb charger rau lub tsheb roj teeb: schemes, cov lus qhia

Nyob rau hauv no tsab xov xwm koj yuav kawm tau li cas yuav ua rau lawv tus kheej txhais tes qhob charger rau lub tsheb roj teeb. Schemes koj yuav siv kiag li tej tab sis qhov nyuaj kev xaiv yog recast qhov siv thiab ua computer fais fab mov unit. Yog hais tias koj muaj xws li ib chav tsev, daim ntawv thov yuav nrhiav tau nws yooj yim heev. Yuav kom muab lub motherboard siv ib tug voltage ntawm 5, 3.3, 12 volts. Raws li koj tau xav txog tej yam, ntawm kev txaus siab rau koj, yog lub voltage ntawm 12 volts. Lub charger yuav tsim them cov roj teeb, lub peev xwm uas yog hom twg los ntawm 55 mus rau 65 ampere-teev. Nyob rau hauv lwm yam lus, nws yuav tsum txaus rau recharge lub roj teeb ntawm feem ntau lub tsheb.

General saib schema

Mus ua ib tug ib niag pawg, koj yuav tsum coj kom zoo dua ntawm lub tswvyim nyob rau hauv tsab xov xwm. Roj teeb charger, nrog nws tus kheej ob txhais tes ntawm cov PSU ntawm ib tug tus kheej lub computer ua tau los tswj cov zis voltage thiab them tam sim no. Koj yuav tsum them sai sai rau lub fact tias muaj yog ib tug luv luv-Circuit Court kev tiv thaiv - Fuse 10 Amp. Tab sis tsis tas rau nruab nws, raws li nyob rau hauv feem ntau ntawm koj tus kheej computers PSU muaj ib tug tiv thaiv ntaus ntawv uas kaw tau tawm nyob rau hauv cov kev tshwm sim ntawm tej kev yuam kev. Yog li ntawd, Circuit Court chargers rau rechargeable roj teeb los ntawm BP computers yuav lawv tus kheej muaj kev tiv thaiv los ntawm luv luv Circuit Court.

Shih-xws li (qhia DA1), feem ntau yog nyob rau hauv lub BS siv ob hom - KA7500 los yog TL494. Tam sim no ib me ntsis kev tshawb xav. Tau ib qho roj teeb recharge unit computer hwj chim? Cov lus teb no - tej zaum raws li cov hlau lead roj teeb feem ntau lub tsheb muaj ib tug muaj peev xwm ntawm 55-65 Ah. Ib tug ib txwm them rau nws yuav tsum tau ib tug tam sim no ntawm 10% roj teeb muaj peev xwm - tsis ntau tshaj li 6.5 amperes. Yog hais tias lub hwj huam mov muaj ib lub hwj chim ntawm ntau tshaj 150 W, nws saw "+12" yog muaj peev xwm muab ib tug xws li tam sim no.

Cov thawj zaug rau theem ntawm kev hloov

Yuav kom rov ua ib tug yooj yim lub tsev ua roj teeb charger, yuav tsum tau me ntsis tuaj fais fab mov:

1. Tau tshem ntawm tag nrho cov ruaj nyob ntawm tej. Nrog kev pab los ntawm ib tug soldering hlau mus tshem lawv thiaj li tsis mus cuam tshuam.
2. Raws li lub tswvyim nyob rau hauv qhov tsab xov xwm no yog tsau resistor R1, uas yog tsim nyog rau unsolder thiab nyob rau hauv nws qhov chaw tsim trimmer kuj 27 ohms. Nyob rau Upper hu ntawm lub resistor ces koj yuav tsum mus thov ib tug qhov voltage "+12". Yog tsis muaj nws yuav tsis muaj peev xwm ua hauj lub ntaus ntawv.
3. 16-th tso zis Circuit Court yog kaw los ntawm lub Rho tawm.
4. Tom ntej no, koj yuav tsum disunite lub 15 th thiab 14 th cov lus xaus.

Yooj yim heev yog tau improvised charger rau lub tsheb roj teeb. Koj yuav tau siv tej tswvyim, tab sis yooj yim los mus ua kom los ntawm ib tug computer PSU - nws yog lighter, yooj yim rau siv, pheej yig dua. Yog hais tias peb los sib piv nrog rau cov transformer ntaus ntawv, tus ntaus ntawv luj yog ho txawv (thiab me me).

kev kho me ntsis charger

Lub rear phab ntsa ntawm lub computer fais fab mov unit yuav tam sim no muaj pem hauv ntej, nws yog ntshaw kom tsim ib daim ntawm cov ntaub ntawv uas (PCB zoo tagnrho). Qhov no phab ntsa yuav tsum nruab ib lub teeb uas them tam sim no regulator, xaiv nyob rau hauv Scheme R10. Tam sim no kev txiav txim zoo resistor yog zoo tshaj plaws siv raws li haib li sai tau - noj ob mus rau lub hwj chim ntawm 5 W thiab ib tug tsis kam ntawm 0.2 ohms. Tab sis nws tag nrho cov nyob rau hauv lub xaiv ntawm lub tswvyim ntawm chargers rau rechargeable roj teeb. Nyob rau hauv ib co designs, nws tsis yog tsim nyog los siv ib lub hwj chim resistor.

Thaum kev cob cog rua nyob rau hauv thaum uas tig mus nce nyob rau hauv hwj chim yog tau nyob rau hauv ob lub sij hawm, thiab cov kuj yuav sib npaug zos rau 0.1 ohms. Lub pem hauv ntej phab ntsa kuj yog ntsuas - voltmeter thiab ib tug ammeter, uas tso cai rau kom tswj tau tus yam tsis muaj lub charger. Rau zoo hloov zaryadchika siv trimmer uas voltage yog thov mus rau lub 1 st tso zis shi xws li.

Kho vajtse yuav tsum muaj

Yuav ua li cas yuav tsum yog ib qhob charger rau lub tsheb roj teeb? kawg los ua ke ntawm lub tswvyim yuav tau los sib tham li hauv qab no. Nyob rau hauv thiaj li yuav tshem tawm pliaj cev kev twb kev txuas thiab lub hwj huam mov ntau hlau them Circuit Court (qhov uas tau raug sau los ntawm koj), koj yuav tsum tau ntxuav qhov print txoj kev. Lub hwj chim muab chav tsev muaj ib tug vaj tsev ua los ntawm cov hlau, thiab kev ruaj ntseg yog vim li cas nws yog tsis yooj yim sua los them lub roj teeb Circuit Court yog nrog nws galvanic kev twb kev txuas. Thiab feem ntau cov tseem ceeb - qhov no yog ib qho kev zam cab them tam sim no Circuit Court (bypassing lub resistor R11). Thaum lub sij hawm lub lag luam, lub davhlau ya nyob twg yuav tsum tsis txhob yuav tsis meej pem - nws yuav ua puas lub zaryadchik.

kawg los ua ke

K 1, 14, 15 thiab terminals 16 yog soldered nyias tso tseg hlau. Cov rwb thaiv tsev lawv yuav tsum txhim khu kev qha, hais tias cov load tsis rhuab, txwv tsis pub ib tug qhob tsheb charger tsis. Tom qab los ua ke rau nruab trimmer voltage ntawm txog 14 volts (+/- 0.2). Nws yog ib qhov nro yog dab tsi rau roj teeb them. Ntxiv mus, qhov no tus nqi yuav tsum tau idling (tsis muaj load kev cob cog rua).

Nyob rau cov nyob ntawm tej uas txuas mus rau lub roj teeb, koj yuav tsum nruab ib ob khej clips. Ib tug liab, lwm dub. Cov no yuav muaj yuav nyob rau hauv tej khw tsev neeg cov khoom thiab nws pib qhov chaw. Ntawm no yog ib tug yooj yim hauv tsev puv Charger rau lub tsheb roj teeb. Scheme tebchaw: dub uas txuas mus rau ib tug rho tawm, thiab liab los zoo. Lub them txheej txheem yog siab tsis siv neeg, kev pab tib neeg yog yuav tsum tau. Tab sis nws yog tsim nyog los xav txog lub ntsiab theem ntawm txoj kev no.

Tus txheej txheem ntawm them lub roj teeb

Thaum thawj zaug kev voj voog voltmeter yuav qhia ib tug voltage ntawm txog 12,4-12,5 V. Yog hais tias lub roj teeb muaj ib tug muaj peev xwm ntawm 55 Ah, ces koj yuav tau tig lub pob qhov rooj mus txog rau thaum mus txog rau thaum lub ammeter qhia tau hais tias ib tug nqi ntawm 5.5 Amps. Qhov no txhais tau tias them tam sim no yog 5.5 A. Raws li sai li lub roj teeb yog them, qhov tam sim no decreases thiab cov voltage nyhav mus rau ib tug tshaj plaws. Raws li ib tug tshwm sim, qhov kawg ntawm qhov tam sim no yog sib npaug zos rau 0, ib tug voltage ntawm 14 V.

Tsis muaj teeb meem dab tsi twb siv rau qhov siv thiab ua ib tug xaiv ntawm cov qauv thiab designs ntawm chargers, lub hauv paus ntsiab lus ntawm cov lag luam zoo ib yam li nyob rau hauv ntau lub respects. Thaum cov roj teeb yog siab them, tus ntaus ntawv pib pab kom txawm peem rau nws tus kheej-paug tam sim no. Yog li ntawd koj tsis khiav txoj kev pheej hmoo uas tshwm sim roj teeb recharging. Yog li ntawd, lub charger yuav tsum txuas nrog rau ib lub roj teeb thiab ib hnub twg, ib lub lim tiam, los yog txawm lub hlis.

Lub tswv yim rau ib tug rov

Yog hais tias koj tsis muaj ntsuas cov cuab yeej siv uas yog tsis thov txim yuav tsum tau ntsia nyob rau hauv lub ntaus ntawv, tej zaum yuav zam. Tab sis rau no nws yog tsim nyog los ua ib tug scale rau potentiometer - kos txoj hauj lwm rau lub them tam sim no qhov tseem ceeb sib npaug zos rau 5.5 A thiab 6.5 A. Ntawm cov hoob kawm, tus ntsia ammeter yog yooj yim npaum li - koj yuav visually soj ntsuam cov txheej txheem ndlwg ntawm roj teeb them. Tab sis lub roj teeb charger, tau nrog nws tus kheej ob txhais tes tsis muaj kev siv ntawm pab kiag li lawm yuav ua tau yooj yim.