Universal Li -Ion Roj Teeb Charger - Sab Hauv Dab Tsi?: 7 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:26

Cov txiaj ntsig ntawm cov khoom tsim kua muag tuaj yeem siv los ntawm hobbyists/cov tsim khoom los nrhiav seb cov khoom siv tau siv hauv cov khoom siv hluav taws xob. Cov kev paub zoo no tuaj yeem pab nkag siab txog kev ua haujlwm li cas, suav nrog kev tsim qauv tshiab, thiab tuaj yeem pab txhawb kev rov ua haujlwm txheej txheem txheej txheem ntawm kev siv hluav taws xob. Kab lus no, ntim nrog cov ntsiab lus tsim kua muag ntawm Li-ion Universal Battery Charger, yog kev txo hwj chim hauv kev coj, thiab yog qhov tshwm sim ntawm cov kev sim ua los ntawm lub sijhawm.

Kauj ruam 1: Intro

Tsis ntev los no kuv bough me me sab nraud lub xov tooj ntawm tes roj teeb them los ntawm eBay. Nrog kev pab los ntawm kev teeb tsa kev sib cuag tau, lub charger yog, txawm li cas los xij, tuaj yeem them yuav luag txhua Li-ion cov roj teeb uas tau them rov qab.

Kauj Ruam 2: Lithium-ion Battery & Lithium-ion Battery Charger

Cov roj teeb Lithium-ion (Li-ion) tau dhau los ua cov khoom siv hluav taws xob zoo xws li cov xov tooj ntse vim tias lawv khav theeb lub zog siab tshaj plaws ntawm txhua lub tshuab roj teeb lag luam. Txij li Lithium yog cov khoom siv tau zoo heev (them tsis raug ntawm Li-ion cell niaj hnub tuaj yeem ua rau puas tsuaj tas mus li, lossis tsis zoo, tsis muaj kev nyab xeeb thiab muaj kev phom sij), Li-ion roj teeb yuav tsum tau them tom qab ua tib zoo tswj tam sim no/qhov hluav taws xob tsis tu ncua uas yog qhov tshwj xeeb rau cov tshuaj no ntawm tes.

Kauj Ruam 3: Lithium-ion Universal Roj Teeb Charger

Nram qab no yog kev piav qhia yuav ua li cas txhawm rau txhawm rau lub roj teeb sab nraud thoob ntiaj teb, ntsaws lub roj teeb rau hauv lub charger, thiab them nws.

• Txuas lub charger rau hauv AC phab ntsa qhov hluav taws xob (AC180 - 240V)
• Muab lub roj teeb ntim rau ntawm lub hauv paus (3.7V Li-ion)
• Tsiv tus neeg hu xov tooj sib txuas kom haum nrog "+" thiab "-" cov roj teeb. Lub tshuab them nyiaj yuav txiav txim siab "+" thiab "-" polarity
• Tam sim no qhov "fais fab" qhov taw qhia teeb & "them" qhov taw qhia yuav nyem thaum them
• "Them Tus Nqi" qhov taw qhia teeb thaum lub roj teeb tau them tas

Ib qho tseem ceeb ntawm lub roj teeb no yog lub teeb tsa rov qab ua kom pom kev zoo. Thaum peb tso lub roj teeb, lub kaw lus hloov kho nws cov khoom sib xws raws li qhov xwm txheej tam sim no kom ntseeg tau tias muaj kev nyab xeeb thiab noj qab haus huv cov txheej txheem. Ib qho ntxiv, kev hloov kho lub ntsej muag ntse suav nrog cov yam ntxwv zoo siab xws li kev them nyiaj tas li, kev them nyiaj sab saum toj, tiv thaiv kev them nyiaj ntau dhau, kuaj pom lub roj teeb tuag, rov ua kom lub roj teeb rov zoo, thiab lwm yam.

Kauj Ruam 4: Teardown Reflections

Hauv cov khoom siv hluav taws xob: Cov khoom siv hluav taws xob ntawm lub charger suav nrog ob ntu tseem ceeb sib npaug; ib qho "khib" smps fais fab mov, thiab "zais" lub roj teeb them. Cov khoom tseem ceeb hauv smps Circuit yog ib qho TO-92 transistor 13001, thaum lub roj teeb them tau tsim nyob ib puag ncig ib tus 8-pin DIP nti HT3582DA los ntawm HotChip (https://www.hotchip.com.cn). Raws li cov ntaub ntawv teev tseg, HT3582DA yog lub roj teeb thoob ntiaj teb tswj lub nti nrog lub cim roj teeb tsis siv neeg, kev tiv thaiv luv luv, thiab kev tiv thaiv kub tshaj (tam sim no 300mA). ib lub charger los ntawm ntau lwm tus neeg hauv khw yog kev hloov pauv hauv smps Circuit (ntau ntxiv tom qab-saib lab nco)

Kauj Ruam 5: Daim Duab Circuit Court & Lab Cim

Tam sim no yog lub sijhawm zoo txav mus rau qhov txheej txheem ntawm qhov tsis zoo saib hauv pawg thawj coj saib xyuas (taug qab & txheeb xyuas los ntawm kuv).

Lus Cim Lab: Raws li tau hais ua ntej, qhov tseem ceeb uas sib cais ib lub charger los ntawm ntau lwm tus hauv khw yog kev hloov pauv hauv smps Circuit. Raws li qhov piv txwv nws tau pom tias tus nqi R1 hloov kho rau 1.5M lossis 2.2M, thiab R2 txog 56R lossis 47R hauv qee qhov lwm lub roj teeb. Ib yam li ntawd, C2 tau hloov los ntawm hom 10μF/25v.

Kauj Ruam 6: Thaum kawg…

Hmoov tsis zoo, tsis muaj dab tsi ntxiv txog smps transformer (X1), thiab lub charger tswj lub nti (IC1), tshwj tsis yog cov ntawv Suav suav nrog qee cov ntaub ntawv nyoos. Qhov xav tsis thoob tom ntej yog qhov tsis muaj ib txwm muaj hluav taws xob dc lim/tsis muaj peev xwm (feem ntau yog ib qho 4.7μF-10μF/400v yam) ntawm pem hauv ntej-kawg ntawm smps. Txawm li cas los xij, nws yog qhov tseeb tias qhov hluav taws xob siab 1N4007 (D1) cov tswv yim hloov pauv AC cov tswv yim mus rau pulsating DC. 13003 lub zog hloov hluav taws xob (T1) hloov lub zog rau smps hloov pauv (X1) ntawm qhov hloov pauv zaus (tej zaum siab dua 50kHz). Lub smps hloov pauv muaj ob txoj hauv kev winding (lub ntsiab winding thiab cov lus tawm tswv yim winding), thiab thib ob winding. Ib qho yooj yim tawm tswv yim Circuit Court tswj cov zis voltage; kev tawm tswv yim oscillation los ntawm kev tawm tswv yim winding thiab cov lus tawm tswv yim hluav taws xob los ntawm cov khoom siv sib txuas ua ke hauv 13001 lub zog hloov hluav taws xob. Tom qab ntawd lub transistor tsav lub smps transformer. Ntawm qhov thib ob (tso tawm) sab, 1N4148 diode (D3) kho qhov hloov pauv smps rau DC, uas yog lim los ntawm 220μF capacitor (C3) ua ntej muab qhov xav tau tso zis hluav taws xob (ze 5V) mus rau qhov seem ntawm lub Circuit Court. Thoob plaws hauv lub sijhawm ntawm qhov kev sim rhuav tshem, 4.1 V DC tau pom thoob plaws lub xov tooj sib txuas (tsis muaj roj teeb), thiab muaj qhov ua haujlwm ntawm lub plawv dhia kuj tau pom nyob ntawd (nrog roj teeb).

Thiab thaum kawg, nws xav tias PWM tso tawm (ntawm qee qhov zaus) tsim los ntawm lub roj teeb them tus nqi tswj HT3582DA tsub roj teeb. Lub hauv paus ADC thiab PWM (nrog xoom cov khoom siv sab nraud) muab lub hauv paus los siv lub zog lithium-ion roj teeb uas muaj txiaj ntsig zoo!

Kauj Ruam 7: Nco Ntsoov

Kab lus no (sau los ntawm T. K. Hareendran) tau luam tawm thawj zaug los ntawm www. codrey.com hauv xyoo 2017.