Qhov Ntsuas Dej Qhia Siv ULN 2003 IC: 4 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:25

Cov dej ntws los ntawm lub tank saum taub hau yog qhov teeb meem rau txhua tus thiab hauv txhua tsev neeg. Nws, nrog rau kev siv hluav taws xob tsis txaus kuj ua rau muaj dej ntau ntau thiab nrog cov cai tshiab tau dhau los ua dej tsis txaus txawm tias nyob hauv lub tank dhau los yuav raug nplua.

Yog li ntawm no kuv nthuav qhia qhov yooj yim thiab yooj yim DIY txoj haujlwm rau txhua tus neeg nyiam thiab cov tub ntxhais kawm uas yuav muaj kev cuam tshuam ib puag ncig ib yam.

Txhawm rau kom nws nrog qhov tsis muaj suab nrov qias neeg txoj haujlwm kuv tsis tau suav nrog lub suab nrov hauv qhov no.

Nws xav tau cov khoom siv tau yooj yim thiab pheej yig.

Cov lus qhia no yog txhawb nqa los ntawm jlcpcb.com

Khoom siv

ULN2003 IB

330 Ohm Resistors (0.4W) - 7

LEDs - Liab, Ntsuab, Daj/xiav

Cov xov hlau - ntev txaus los ntawm lub tank dej mus rau txoj haujlwm tsim nyog ntawm qib saib xyuas (7 xov hlau)

Kauj ruam 1: Circuit Court

Ob peb yam paub txog ULN2003A IC

ULN2003A yog ib pawg ntawm xya NPN Darlington transistors muaj peev xwm ntawm 500 mA, 50 V tso tawm.

Nws muaj qhov sib xws-cathode flyback diodes rau kev hloov pauv inductive.

Xya qhov Darlington khub hauv ULN2003 tuaj yeem ua haujlwm ntawm nws tus kheej tshwj tsis yog cov cathode diodes uas txuas rau lawv cov khoom sib xws.

ULN2003 paub txog nws lub zog tam sim no, muaj peev xwm ua hluav taws xob ntau. Cov tsav tsheb tuaj yeem ua ke rau qhov siab dua tam sim no.

Cov ntsiab lus tseem ceeb:

500 mA rated tus neeg sau khoom tam sim no (ib leeg tso tawm)

50 V tso zis

Xws li tso zis flyback diodes

Cov tswv yim sib xws nrog TTL thiab 5-V CMOS cov laj thawj

Dej theem Circuit

Nws ua haujlwm ntawm tib lub hauv paus ntsiab lus zoo li NPN transistors ua haujlwm tab sis hauv kev tsim qauv me dua. ULN2003A yog 7 NPN transistors hauv ib pob.

Kauj Ruam 2: PCB Tsim

Kuv tau siv EasyEda los tsim 2-txheej PCB.

Gerber Cov Ntaub Ntawv Txuas

EasyEDA Project txuas

Kauj Ruam 3: Kauj Ruam 3: Hais kom cov PCBs

Tam sim no peb tau txais PCB tsim thiab nws yog lub sijhawm los xaj cov PCB. Txog qhov ntawd, koj tsuas yog yuav tsum mus rau JLCPCB.com, thiab nyem rau ntawm "QUOTE NOW" khawm.

JLCPCB kuj yog tus txhawb nqa txoj haujlwm no. JLCPCB (Shenzhen JLC Electronics Co., Ltd.), yog lub tuam txhab PCB loj tshaj plaws hauv Suav teb thiab cov tuam txhab tsim khoom lag luam tshwj xeeb tshwj xeeb hauv PCB sai sai thiab tsim PCB me me. Koj tuaj yeem xaj yam tsawg kawg ntawm 5 PCBs rau tsuas yog $ 2. Txhawm rau kom tau txais PCB tsim, xa cov ntaub ntawv gerber koj rub tawm hauv cov kauj ruam kawg. Rub tawm cov ntawv.zip lossis koj tseem tuaj yeem rub thiab poob cov ntaub ntawv gerber. Tom qab xa cov ntawv zip, koj yuav pom cov lus ua tiav hauv qab yog tias cov ntawv tau ua tiav tiav. Koj tuaj yeem tshuaj xyuas PCB hauv Gerber tus saib kom paub tseeb tias txhua yam zoo. Koj tuaj yeem saib ob sab saum toj thiab hauv qab ntawm PCB. Tom qab ua kom ntseeg tau tias PCB zoo, tam sim no koj tuaj yeem tso qhov kev txiav txim ntawm tus nqi tsim nyog. Koj tuaj yeem xaj 5 PCBs rau tsuas yog $ 2 ntxiv rau kev xa khoom. Txhawm rau txiav txim, nyem rau ntawm "SAVE TO CART" khawm. Kuv cov PCBs tau siv 2 hnub los tsim khoom thiab tuaj txog hauv 20 hnub siv tus qauv sau npe xa khoom xa tuaj. Muaj cov kev xaiv xa khoom sai kuj muaj. PCBs tau ntim tau zoo thiab qhov zoo yog qhov zoo tiag tiag.

Kauj Ruam 4: Sib dhos thiab ua haujlwm

R8 tus tiv thaiv yog xaiv tau raws li cov tswv yim tam sim no, hauv kev ntsuas lub roj teeb lipo (4.2V) tsis xav tau tus tiv thaiv rau Circuit Court ua haujlwm kom nyab xeeb.

Tsis tas li lub jumper yog xaiv tau, nws yuav ua rau/tawm hloov yog xav tau.

Cov xaim txuas nrog lub davhlau ya nyob twg tso rau hauv qab ntawm lub tank. Tom qab ntawd tag nrho lwm cov xov hlau los ntawm 0 mus rau cov dej ntws tau muab tso rau ntawm cov qib sib txawv hauv lub tank zoo dua txuas rau tus ncej uas tsis muaj kev coj ua uas tuaj yeem tso rau hauv dej.

Raws li qib dej ntawm lub taub hau taub hau nce LEDs pib teeb ua ntu zus ib yam li kab duab kab.

Tom qab sib sau txhua yam thiab txuas cov xov hlau, nws zoo li pom hauv cov duab.

NCO TSEG: yuav muaj ntsev tso rau ntawm lub xaim qhib qhov kawg hauv lub tank yog tias cov dej hauv koj cheeb tsam yog dej nyuaj, tom qab ntawd koj yuav tsum tau ntxuav cov ntsev ntsev tsis tu ncua.