LM317 Kev Hloov Kho Cov Hluav Taws Xob: 6 Cov Kauj Ruam

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

Ntawm no peb xav tham txog cov ntsuas hluav taws xob hloov pauv tau. Lawv xav tau cov teeb meem nyuaj ntau dua li tawm. Lawv tuaj yeem siv los tsim qhov sib txawv qhov hluav taws xob tso tawm nyob ntawm qhov Circuit Court thiab tseem tuaj yeem hloov kho qhov hluav taws xob los ntawm potentiometer.

Hauv ntu no peb yuav xub qhia qhov tshwj xeeb thiab pinout ntawm LM317, tom qab ntawd peb yuav qhia yuav ua li cas thiaj ua peb qho kev sib txawv sib txawv nrog LM317.

Txhawm rau ua tiav cov lus pom ntawm ntu no koj yuav xav tau:

Khoom siv:

• HWV 317
• 10 k Ohm Trimmer lossis lauj kaub
• 10 uF thiab 100 uF
• Resistors: 200 Ohm, 330 Ohm, 1k Ohm
• 4x AA roj teeb pob 6V
• 2x Li-Ion Roj teeb 7.4V
• 4S Li-Po Roj teeb 14.8V
• los yog Power Supply

Kauj ruam 1: Pinout Txheej txheem cej luam

Pib los ntawm sab laug peb muaj tus kho (ADJ) tus pin, nruab nrab ntawm nws thiab cov zis (tawm) tus pin peb teeb tsa qhov faib hluav taws xob uas yuav txiav txim siab qhov hluav taws xob tso tawm. Tus pin nruab nrab yog qhov hluav taws xob tso tawm (OUT) tus pin uas peb yuav tsum txuas nrog lub tshuab hluav taws xob txhawm rau muab kev ruaj khov tam sim no. Nov peb tau txiav txim siab siv 100 uF tab sis koj tuaj yeem xaiv siv qis dua ib yam (1uF>). Txoj cai sab xis yog tus pin (IN) tus pin uas peb txuas nrog lub roj teeb (lossis lwm lub zog siv) thiab ruaj khov tam sim no nrog lub capacitor (ntawm no 10uF, tab sis koj tuaj yeem mus qis li 0.1 uF).

• ADJ Ntawm no peb txuas qhov faib hluav taws xob, txhawm rau kho qhov hluav taws xob tso tawm
• OUT Ntawm no peb txuas lub zog faib hluav taws xob nkag (txhua lub cuab yeej uas peb tau them).
• Hauv qhov no peb txuas cov xaim liab (ntxiv rau lub davhlau ya nyob twg) los ntawm roj teeb

Kauj Ruam 2: LM317 3.3 V Circuit

Tam sim no peb tab tom tsim kev tsim hluav taws xob siv LM317 uas yuav tso tawm 3.3 V. Cov kab hluav taws xob no yog rau cov khoom tsim tawm. Cov resistors raug xaiv los ntawm cov mis uas peb yuav piav qhia tom qab.

Cov txheej txheem thaiv yog raws li hauv qab no:

• Txuas LM317 mus rau daim ntawv qhia zaub mov.
• Txuas tus 10 uF capacitor nrog tus pin IN. Yog tias koj siv cov tshuab hluav taws xob electrolytic nco ntsoov txuas mus rau - rau GND.
• Txuas lub 100 uF capacitor nrog tus OUT tus pin.
• Txuas IN nrog lub davhlau ya nyob twg ntxiv ntawm lub zog siv
• Txuas 200 Ohm resistor nrog OUT thiab ADJ pins
• Txuas 330 Ohm resistor nrog 200 Ohm thiab GND.
• Txuas OUT tus pin nrog lub davhlau ya nyob twg ntxiv ntawm lub cuab yeej uas koj xav kom them. Ntawm no peb tau txuas nrog rau lwm sab ntawm lub khob cij nrog OUT thiab GND los sawv cev rau peb pawg tswj hwm kev faib khoom.

Kauj Ruam 3: LM317 5 V Circuit

Txhawm rau tsim 5 V cov khoom siv hluav taws xob siv LM317 peb xav tau tsuas yog hloov cov resistors thiab txuas cov khoom siv hluav taws xob ntau dua. Lub voj voog no tseem yog rau kev tso tawm tas mus li. Cov resistors raug xaiv los ntawm cov mis uas peb yuav piav qhia tom qab.

Cov txheej txheem thaiv yog raws li hauv qab no:

• Txuas LM317 mus rau daim ntawv qhia zaub mov.
• Txuas tus 10 uF capacitor nrog tus pin IN. Yog tias koj siv cov tshuab hluav taws xob electrolytic nco ntsoov txuas mus rau - rau GND.
• Txuas 100 uFcapacitor nrog tus lej OUT.
• Txuas IN nrog lub davhlau ya nyob twg ntxiv ntawm lub zog siv
• Txuas 330 Ohm resistor nrog OUT thiab ADJ pins
• Txuas 1k Ohm resistor nrog 330 Ohm thiab GND.
• Txuas OUT tus pin nrog lub davhlau ya nyob twg ntxiv ntawm lub cuab yeej uas koj xav kom them. Ntawm no peb tau txuas nrog rau lwm sab ntawm lub khob cij nrog OUT thiab GND los sawv cev rau peb pawg tswj hwm kev faib khoom.

Kauj Ruam 4: LM317 Kev Hloov Kho Circuit

Lub voj voog rau kev hloov kho qhov hluav taws xob tso tawm nrog LM317 zoo ib yam li yav dhau los hauv Circuit Court. Ntawm no peb hloov tus tiv thaiv thib ob siv lub tshuab txiav lossis lub zog ntsuas. Raws li peb nce qhov tsis kam ntawm lub trimmer qhov tso zis hluav taws xob nce. Peb xav kom muaj 12 V raws li kev tso tawm siab thiab rau qhov uas peb xav tau siv lub roj teeb sib txawv, ntawm no 4S Li-Po 14.8 V.

Cov txheej txheem thaiv yog raws li hauv qab no:

• Txuas LM317 mus rau daim ntawv qhia zaub mov.
• Txuas tus 10 uF capacitor nrog tus pin IN. Yog tias koj siv cov tshuab hluav taws xob electrolytic nco ntsoov txuas mus rau - rau GND.
• Txuas lub 100 uF capacitor nrog tus OUT tus pin.
• Txuas IN nrog lub davhlau ya nyob twg ntxiv ntawm lub zog siv
• Txuas 1k Ohm resistor nrog OUT thiab ADJ pins
• Txuas 10k Ohm trimmer nrog 1k Ohm thiab GND.

Kauj Ruam 5: Lub Tshuab Ntsuas Hluav Taws Xob

Tam sim no peb xav piav qhia cov qauv yooj yim rau kev suav qhov tsis kam peb xav tau kom tau qhov hluav taws xob tso tawm peb xav tau. Nco ntsoov tias cov mis siv ntawm no yog qhov hloov pauv yooj yim, vim tias nws yuav muab txiaj ntsig zoo rau peb rau txhua yam uas peb yuav ua.

Qhov twg Vout yog qhov hluav taws xob tso tawm, R2 yog "qhov kawg tiv thaiv", ib qho uas muaj txiaj ntsig ntau dua, thiab ib qho uas peb tso lub tshuab txiav hauv qhov piv txwv kawg. R1 yog tus tiv thaiv uas peb txuas ntawm OUT thiab ADJ.

Thaum peb suav qhov tsim nyog tiv taus, ua ntej peb pom tias qhov hluav taws xob qhov hluav taws xob peb xav tau, feem ntau yog rau peb uas yuav yog 3.3 V, 5 V, 6 V lossis 12 V. yog tam sim no peb R2. Hauv thawj qhov piv txwv peb tau xaiv 330 Ohm, hauv qhov thib ob 1 k Ohm thiab thib peb 10 k Ohm Trimmer.

Tam sim no peb paub R2 thiab Vout peb yuav tsum tau suav R1. Peb ua qhov ntawd los ntawm kev rov kho cov qauv saum toj no thiab tso peb qhov txiaj ntsig.

Rau peb thawj qhov piv txwv R1 yog 201.2 Ohm, rau qhov piv txwv thib ob R1 yog 333.3 Ohm, thiab rau qhov piv txwv kawg ntawm qhov siab tshaj 10 k Ohm R1 yog 1162.8 Ohm. Los ntawm qhov no koj tuaj yeem pom vim li cas peb tau xaiv cov resistors no rau cov zis hluav taws xob.

Tseem muaj ntau yam yuav tsum tau hais txog qhov no, tab sis lub ntsiab lus tseem ceeb yog tias koj tuaj yeem txiav txim siab tus tiv thaiv koj xav tau los ntawm kev xaiv qhov hluav taws xob tso tawm thiab xaiv R2 nyob ntawm seb koj muaj tus tiv thaiv zoo li cas.

Kauj Ruam 6: Xaus

Peb xav sau qhov peb tau qhia ntawm no, thiab qhia qee qhov tseem ceeb ntxiv ntawm LM317.

• Cov tswv yim hluav taws xob ntawm LM317 yog 4.25 - 40 V.
• Cov zis hluav taws xob ntawm LM317 yog 1.25 - 37 V.
• Kev poob qis qis yog kwv yees li 2 V, txhais tau tias peb xav tau tsawg kawg 5.3 V kom tau 3.3 V.
• Qhov ntsuas tam sim no siab tshaj plaws yog 1.5 A, nws tau pom zoo kom siv Cov Dej Kub Kub nrog LM317.
• Siv LM317 txhawm rau txhim kho cov tswj thiab tsav tsheb, tab sis hloov mus rau DC-DC hloov pauv rau lub cav.
• Peb tuaj yeem ua qhov hluav taws xob ruaj khov los ntawm kev siv ob qho kev xam lossis kwv yees cov neeg tawm tsam.
• Peb tuaj yeem ua qhov hloov pauv qhov hluav taws xob los ntawm kev siv ib qho ntsuas qhov ntsuas thiab ib tus kwv yees kwv yees

Koj tuaj yeem rub tawm cov qauv siv hauv qhov kev qhia no los ntawm peb tus lej GrabCAD:

GrabCAD Robottronic Qauv

Koj tuaj yeem pom peb lwm cov lus qhia ntawm Instructables:

Cov lus qhia Robottronic

Koj tseem tuaj yeem tshawb xyuas Youtube channel uas tseem tab tom ncaws tawm:

Youtube Robottronic