Cov Qib Roj Teeb Tsawg: 4 Cov Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:24

Qee cov khoom siv hauv tsev siv los ntawm Li-Ion Cov Roj Teeb, tsis muaj lub ntsuas roj teeb qis. Hauv kuv qhov xwm txheej nws yog lub tshuab ntxhua khaub ncaws hauv tsev uas muaj 3.7 V roj teeb. Nws tsis yog ib qho yooj yim los txiav txim lub sijhawm kom them nws thiab txuas rau ntawm lub qhov (socket) loj. Feem ntau, kuv rov ua tus sweeper lub sijhawm, thaum lub roj teeb tuag tag thiab lub tshuab hluav taws xob tsis ua haujlwm. Qhov xwm txheej zoo li no tsis yooj yim heev, tshwj xeeb tshaj yog, yog tias koj xav tau siv lub tshuab ntxhua khaub ncaws tam sim.

Kuv tab tom nrhiav kev daws teeb meem yooj yim, yuav ua li cas txhawm rau txheeb xyuas qhov ntsuas hluav taws xob uas yuav tsum tau them. Hauv tsab xov xwm no qhia yooj yim qib qis Li-Ion Roj teeb qhia tau piav qhia. Kev tsim hluav taws xob tuaj yeem siv tau hauv ib qho khoom siv hluav taws xob uas siv los ntawm Li-Ion Roj teeb thiab tuaj yeem pab cov neeg siv kom them roj teeb raws sijhawm. Qhov ntsuas roj teeb tau mob siab rau ib lub cell, tab sis tuaj yeem hloov kho tau yooj yim rau ntau lub cell. Qhov ntsuas tuaj yeem siv rau txhua lub roj teeb nrog kev hloov pauv me me ntawm Circuit.

Qhov txiaj ntsig tseem ceeb ntawm qhov ntsuas yog txoj cai siv tam sim no, hauv nruab nrab tsawg dua 10 microAmps. Kev siv tam sim no nyob ntawm lub xeev qhov ntsuas

Muaj peb Qhov Kev Ua Haujlwm Hauv Xeev ntawm Qhov Taw Qhia:

• Qhov taw qhia LED teeb tsis tu ncua: lub roj teeb tau them tas.
• Qhov taw qhia LED yog flashing: lub roj teeb yuav tsum tau them.
• Qhov taw qhia LED tsis tau teeb: lub roj teeb tau them thiab lub cuab yeej tau npaj siv

Kauj Ruam 1: Taw Qhia Li-Ion Roj Teeb Qhia Qib

Qhov:

Txhua ntu tuaj yeem yuav tau tsawg dua 5 Euro.

Nov yog cov npe:

• IC1 MC33164-3P, Micropower Undervoltage SensingCircuit TO-92, LCSC PN C145176
• IC2 ICM7555, CMOS Timer, LCSC PN C34608
• R1, R2 resistor 10K, txhua tus tiv thaiv, cov khoom siv hluav taws xob thiab cov khoom me me LCSC
• R3 resistor 680K
• R4 resistor 680
• C1 capacitor M1
• C2 capacitor 1M
• C3 capacitor 10M
• D1, D2, D3 diode 1N5819, LCSC PN C2474
• LED1 diode coj 3 hli, liab
• T1 ntsia hlau davhlau ya nyob twg

Resistors yog rau 0.25 W lossis tsawg dua, cov khoom siv rau 12V lossis ntau dua.

Cov Cuab Yeej:

• Soldering Hlau
• Cordless Laum
• Kub kua nplaum phom

Kauj Ruam 2: Kev piav qhia Circuit

Kev sib xyaw ua ke MC33164-3P yog lub plawv ntawm qib ntsuas. Cov ncauj lus kom ntxaws txog cov khoom siv no yog ntawm no.

Cov lus piav qhia yooj yim ntawm Circuit: Nws yog micropower nyob rau hauv qhov ntsuas hluav taws xob IC, hauv peb lub pins yas pob, zoo ib yam li lub zog qis transistor. MC33164 tau tsim los ua qhov hloov pauv Circuit Court rau microprocessor, thaum lub zog poob.

Nws tshawb pom qhov hluav taws xob ntawm tus pin 2. Sib piv pom qhov hluav taws xob rau qhov ntsuas hluav taws xob, hauv peb qhov xwm txheej 2.7V. Cov txiaj ntsig tuaj yeem ntsuas raws li qhov ntsuas hluav taws xob ntawm tus pin 1. Yog tias pom qhov hluav taws xob tsawg dua 2, 7V, cov zis qis thiab ze rau 0V. Yog tias qhov hluav taws xob nkag ntau dua 2, 7V, nthuav qhia tus nqi ntawm tus pin 1 txog 3V, lossis ntau dua.

Raug siv tus nqi rau MC33164-3P (3 tom qab khiav ceev txhais tau tias 3V), yog 2, 71V. Ntawm tus nqi no raws nraim, cov txiaj ntsig tau hloov pauv. (Tsis txhob xav txog hysteresis.) Cov hluav taws xob rau ib lub xov tooj Li-Ion roj teeb yog: qhov siab tshaj plaws yog 4.2V, raug hluav taws xob 3.7V thiab qhov hluav taws xob tsawg kawg yog los ntawm 2.8 txog 3V, xav tias 2.9V. Qhov tsawg tshaj plaws qhov hluav taws xob muaj nyob rau thaum kawg ntawm lub voj voog tso tawm thiab qib qhov hluav taws xob no yuav tsum qhib peb qhov ntsuas qis.

Siv qhov ntsuas hluav taws xob rau MC33164 yog qhov tsawg dhau los piv rau peb cov kev xav tau. Muaj 2 txoj hauv kev los txo qhov hluav taws xob. Thawj thiab qhov yooj yim tshaj yog qhov faib hluav taws xob. Tab sis, faib faib siv hluav taws xob ntxiv. Tsawg dua kev siv tam sim no yog kev daws teeb meem thib ob, siv qee yam khoom sib xyaw ua ke kom txo 2.9V txog 2.7V. Diodes yog cov khoom siv nrog qee qhov hluav taws xob poob rau pem hauv ntej thiab lawv tuaj yeem siv tau ua tiav. Vim tias tus nqi tam sim no qis heev, hom diode zoo tshaj plaws uas kuv tau xaiv los ntawm kev ntsuas.

Kev ua haujlwm ntawm R1, D1, D2, D3 yog txhawm rau txo qhov ntsuas hluav taws xob. Jumper J1 tuaj yeem tshem tawm qhov kawg ntawm qhov ntsuas hluav taws xob poob qis thiab cov khoom siv hluav taws xob tuaj yeem txo qis me ntsis. Cov zis IC1 yog pub rau timer IC2. Nws tus nqi nquag muaj tsawg thiab ua haujlwm yog pab kom lub sijhawm ua haujlwm. Hmoov tsis zoo, tsis muaj ib tus lej nkag ntawm IC2, uas tso cai ua kom IC no yam tsis muaj kev hloov pauv.

Kuv txiav txim siab los qhib lub sijhawm ICM7555 los ntawm kev thov tso tawm IC1 li rho tawm qhov hluav taws xob rau tus pin 1 ntawm IC2. Cheebtsam C2, R3 txiav txim siab lub sijhawm ntawm lub sijhawm, nws tau hloov kho li ntawm 2 vib nas this. Resistor R4 txwv tam sim no rau qhia LED1 diode. Kuaj qhov hluav taws xob los ntawm roj teeb txuas nrog lub davhlau ya nyob twg nrog tus pin 1 (ntxiv rau) thiab 2 (rho tawm). Qhov tseem ceeb rau R2, C1 raug pom zoo los ntawm cov ntaub ntawv.

Timer ICM7555 yog CMOS sib npaug ntawm 555. Nws qhov ua tau zoo yog ua haujlwm hluav taws xob los ntawm 2.5V thiab siv tsawg heev tam sim no. Ntawm daim duab thib ob muaj qhov yooj yim Circuit Court raws li qhov ntsuas hluav taws xob pom zoo los ntawm cov ntawv teev npe. Cov txheej txheem no tuaj yeem siv tau ib yam nkaus, tab sis siv ICM7555 yog qhov zoo dua, vim tias qib qis qis qhia los ntawm flashing LED, uas pom tau ntau dua.

Kauj Ruam 3: Kev tsim kho

Cov khoom raug muag ntawm ib qho ntawm pawg thawj coj saib nrog qhov loj 20x35mm. Sab nraum lub rooj tsavxwm yog LED diode, tuaj yeem ntsia ntawm qhov pom. Saib xyuas lub roj teeb Li-Ion txuas nrog ntawm cov ntsia hlau dav hlau thaiv. Lub Rooj Tswjhwm Saib me me txaus kom muab tso rau txhua lub cuab yeej.

Kev sib txuas hauv lub cuab yeej yog qhov yooj yim: tsuas yog txuas xov hlau los ntawm lub dav hlau thaiv mus rau roj teeb thiab laum qhov rau LED thiab kho nws. Cov hlua tuaj yeem txuas ncaj qha rau cov roj teeb ntawm tus tuav lub roj teeb.. Hauv qhov no tam sim no ntws tawm ntawm nws tus kheej, hauv kev sib piv rau kev hloov chaw thiab qhov ntsuas tau ua haujlwm tag nrho lub sijhawm.

Hauv kuv qhov xwm txheej, Kuv tau txuas nrog qhov ntsuas qis qis tom qab hloov pauv loj (qis qis). Vim tias lub rooj tsav tsheb sab hauv lub cuab yeej, uas txuas nrog sib cais kom hloov thiab cais rau roj teeb, qhov chaw txuas "tom qab hloov" tsis meej. Kuv siv cov tshuaj yooj yim, txuas qhov ntsuas ncaj qha rau thauj khoom, DC lub cev muaj zog.

Lub rooj tsav xwm tsab ntawv xav tau sijhawm ntxiv los txuas txhua yam khoom siv los ntawm cov xov hlau. Txhawm rau txuag lub sijhawm no, Kuv tau tsim PCB, qhov loj 20x40mm, nrog los ntawm cov khoom sib dhos. PCB tsuas muaj ib txheej. Siv cov khoom siv SMD tuaj yeem txo qhov loj ntawm pawg thawj coj saib. Kuv tsis tau tsim qhov kev tsim no vim tias nyuaj dua cov laug thiab siv cov khoom me me. Gerber cov ntaub ntawv rau PCB kev tsim khoom raug txuas nrog.

Kauj Ruam 4: Xaus

Piav qhia, qhov ntsuas roj teeb qis tuaj yeem siv rau txhua lub roj teeb uas muaj hluav taws xob ntau dua 2.5V. Hauv qhov xwm txheej no hla diodes D1, D2 thiab D3 thiab ntxiv ib qho resistor R5 ua ib feem ntawm qhov faib hluav taws xob rau R1. Tus nqi ntawm R1 nyob ntawm seb qhov ntsuas hluav taws xob qib U thiab tuaj yeem suav los ntawm:

R5 = 2.7*R1/(U-2.7)

Kev tsim kho tau ua tiav ntawm PCB me me nrog los ntawm cov khoom sib dhos. Yog tias koj tau txais hauv koj cov khoom qee qhov SMD, Kuv pom zoo kom siv cov khoom SMD.

Qhov loj ntawm pawg thawj coj yuav me dua thiab kev tsim kho tso cai rau koj xyaum siv SMD qhov chaw.

Ua tsaug rau kev nyeem ntawv thiab muaj sijhawm zoo nrog kev tsim kho.