DIY Fais Fab Khoom Siv LM317 - Lm 317 Qhov Hloov Pauv Hloov Pauv Hloov Pauv: 12 Cov Kauj Ruam

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

Niaj hnub no peb yuav kawm yuav ua li cas thiaj ua lub zog siv hluav taws xob me me rau koj cov haujlwm me me. LM317 yuav yog qhov kev xaiv zoo rau cov khoom siv hluav taws xob tsawg tam sim no. yog potentiometer tom qab ntawd koj tuaj yeem kho lub potentiometer thiab tau txais qhov sib txawv Voltage, txawm tias koj tuaj yeem tau txais ib qho kev txhim kho Voltage ib yam los ntawm kev siv tus nqi tiv thaiv tsis tu ncua tsis siv lub zog.

Kauj Ruam 1: Yam Koj Xav Tau

Yog li rau txoj haujlwm no koj yuav xav tau cov khoom hauv qab no: 1x LM317 ic: https://www.utsource.net/itm/p/1017254.html1x Breadboard:

1x 12v Lub zog hloov pauv/muab khoom: https://www.utsource.net/itm/p/9221236.html510 ohm Resistor lossis qee yam sib npaug rau nws (kuv tab tom siv peb tus tiv thaiv nyob rau hauv ua kom nws 520ohm tag nrho): https:/ /www.utsource.net/sch/Resistor1x 10k potentiometer: https://www.utsource.net/itm/p/8038955.html Muaj ob tus dhia: https://www.utsource.net/itm/p/9221310.html1x ntau yam PCB & cov cuab yeej rau cov khoom sib txuas ntawm Pcb: 1x 0.1mF ceramic capacitor: https://www.utsource.net/itm/p/8036440.html1x 1mF dyelectric capacitor: https://www.utsource.net/itm/p/ 8045304.html

Mini Voltmeter module:

Kauj Ruam 2: Muab Lm317 rau ntawm Breadboard

Muab LM317 tso rau ntawm Breadboard thiab txuas lub zog rau lub zog ntsia ntawm Breadboard, rau kuv cov xaim ntsuab yog +12v & xaim daj yog GND.

Kauj Ruam 3: Txuas Cov Tswv Yim rau LM317

Raws li koj tuaj yeem pom daim duab txuas rau +12v (xaim ntsuab) mus rau qhov thib 3 lossis tus lej nkag ntawm LM317 raws li qhia thiab rau qhov kev sib txuas no kuv siv cov xim daj ntawm no.

Kauj Ruam 4: Txuas Txuas

Tam sim no peb yuav tsum txuas tus tiv thaiv ntawm tus pin 1 & tus pin 2 thiab tus nqi tiv thaiv yuav yog 510ohm, txij li thaum kuv tsis muaj 510 ohm yog li kuv siv 3 tsis kam hauv koob ua 510 ohm thiab txuas ntawm tus pin 1 (tus pin txuas) & tus pin 2 (tus pin).

Kauj Ruam 5: Txuas Potentiometer

Tom qab ua tiav cov theem saum toj no tsuas yog tau txais Potentiometer (10k) thiab txuas ib lub ned ntawm potentiometer rau tus pin 1 ntawm Lm317 (tus pin txuas) thiab txuas lwm qhov kawg ntawm potentiometer rau GND ntawm lub zog mov

Kauj Ruam 6: Txuas 0.1uF Cap

Txhawm rau lim/ua kom ruaj khov lub zog siv kom raug siv 0.1uF ntawm +12v & GND raws li kuv tau ua hauv daim duab.

Kauj Ruam 7: Ntxiv 1uF CAP

Tom qab cov kauj ruam saum toj no thov ntxiv ib Cap ntxiv (1 uF) ntawm tus pin 2 ntawm lm317 (tus pin tawm) & GND ntawm lub hwj chim.

Kauj Ruam 8: Tau Txais Cov Lus Qhia

Yog li tom qab txuas txhua yam Raws li qhov kev qhia no, koj tuaj yeem txuas rau cov xov hluav taws xob kom tau txais cov zis, +Ve xov hlau tuaj yeem txuas nrog tus pin 2 ntawm lm317 (tus pin tawm) & -ve (gnd) xaim tuaj yeem txuas ncaj qha rau gnd ntawm cov khoom siv peb tau siv. So +ve & -ve cov xov tooj peb tau txais, uas yog peb qhov sib txawv Voltage tso zis thiab thaum peb tswj hwm lub zog potentiometer cov zis hluav taws xob yuav hloov raws li qhov ntawd.

Kauj Ruam 9: Ntxiv Mini Voltmeter

Rau kev tso tawm qhov hluav taws xob cia ntxiv lub mini voltmeter. So hauv qhov voltmeter no muaj peb lub xov tooj nkaus xwb, Ib qho yog Vcc/ +ve rau lub zog yog li txuas rau +ve ntawm lub hwj chim muab Lwm qhov yog Gnd/-ve rau muab gnd rau voltmeter yog li txuas thiab gnd. And thov txheeb xyuas lub zog xav tau ntawm koj lub mini voltmeter ua ntej txuas, ib qho kuv tau yuav ua haujlwm nrog 12 v. Thiab qee qhov mini voltmeter txawm tias tuaj nrog ob lub xov hlau nyob rau hauv qhov xwm txheej ntawd koj tuaj yeem hla Vcc hlau yog li nws yuav tsuas yog gnd xaim thiab hnov xov hlau thiaj li txuas ob qho no nkaus xwb.

Kauj Ruam 10: Txheeb Xyuas Qhov Tawm

Tom qab ua txhua yam hais los saum no, tig lub hwj chim thiab tig lub hwj chim thiab koj yuav pom qhov ntsuas hluav taws xob hloov pauv ntawm koj lub tshuab hluav taws xob me me. Tam sim no koj tuaj yeem siv Tawm tus pin ntawm Lm317 rau cov zis & gnd xaim thiab ua ke cov no yuav siv rau txhua yam khoom siv tso tawm zoo li Led, lub cev muaj zog.

Kauj Ruam 11: Tsim Lub Thawv Cov Ntaub Ntawv

Tsim lub thawv ntim khoom thiab muab txhua yam tso rau hauv nws thiab tshem tawm tsuas yog Vout & gnd xaim rau lub zog thiab ntxiv qhov ntawm lub zog potentiometer & mini voltmeter, thiab ntxiv pob qhov rooj rau potentiometer.

Kauj Ruam 12: Kauj Ruam Kawg

Txuas txhua qhov tso tawm rau Vout & gnd xov hlau peb tau txais thiab tig lub hwj chim kom tau txais qhov hluav taws xob tso tawm ntawm qhov koj xaiv & nws yuav ua haujlwm zoo li ntxim nyiam.