Lub Koom Txoos Teeb: 4 Kauj Ruam

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

Kuv xav lub tswv yim ntawm Cov Lus Qhia no los ntawm kev nyeem kab lus hauv qab no:

www.instructables.com/id/Photo-Lights/

Kev tswj cov teeb ntawm lub voj voog no raug txwv thaum nws los txog rau kev xaiv.

www.instructables.com/id/Cheap-Colour-Ligh…

los yog qhov no:

www.instructables.com/id/Cheap-Colour-Ligh…

Koj tuaj yeem sim cov LEDs ib txwm siv cov LEDs ci tab sis lawv tuaj yeem tsaus heev. Tsis tas li, muaj cov xim hloov pauv ci ci LEDs muag hauv internet niaj hnub no. Lawv cov xim maj mam hloov pauv nrog lub sijhawm. Lawv kim thiab pheej yig ci LEDs tuaj yeem me dua qhov xav tau thaum lawv tuaj hauv ntawv.

Khoom siv

ntu: 20 kohm lossis 10 kohm kuj sib txawv resistors, lub hom phiaj dav dav NPN transistors - 10, LEDs ci ntawm cov xim sib txawv - 4, xov hlau lossis 1 hli hlau xaim, 3 V, 4.5 V, 6 V roj teeb hlua lossis 9 V roj teeb hlua, roj teeb, 2.2 kohm resistors - 5. 10 kohm lossis 4.7 kohm resistors - 5, 330 ohms resistors - 5, npog daim kab xev, daim duab los qhia, ntim ua npuas ncauj lossis thawv ntawv.

cov cuab yeej: xov hlau stripper, txiab, qhov puncher lossis compass, pliers.

cov ntaub ntawv xaiv tau: solder, siab zog hlau hlau.

cov cuab yeej xaiv tau: multimeter, soldering hlau, voltmeter.

Kauj ruam 1: Tsim Circuit Court

Yog tias koj siv 10 kohm potentiometer tshaj txhua Rvb resistors (Rvb1, Rvb2 thiab Rvb3) yuav tsum yog 4.7 kohms lossis 5.6 kohms. Rb1, Rb2 thiab Rb3 yuav tsum yog 2.2 kohms lossis tsawg kawg 1 kohms.

Koj yuav tsum suav qhov siab tshaj tam sim no hla txhua ntawm peb lub LEDs. Qhov siab tshaj plaws tam sim no yuav zoo ib yam thiab yuav sib npaug rau:

ImaxLed = (Vs - Vbe - Vled) / Re1 = (6 V - 0.7 V - 2 V) / 330 ohms = 3.3 V / 330 ohms = 10 mA

Koj tuaj yeem ua qhov ntsuas ntsuas rau lwm qhov hluav taws xob:

Vs = 3 V: ImaxLed = (3 V - 0.7 V - 2 V) / 33 ohms = 0.3 V / 33 ohms = 9.0909 mA

Vs = 4.5 V: ImaxLed = (4.5 V - 0.7 V - 2 V) / 180 ohms = 1.8 V / 180 ohms = 10 mA

Vs = 9 V: ImaxLed = (9 V - 0.7 V - 2 V) / 680 ohms = 6.3 V / 680 ohms = 9.2647 mA

Re1, Re2 thiab Re3 yuav tsum yog txhua tus tib tus nqi lossis kwv yees tus nqi tib yam.

Kauj ruam 2: Tsim Circuit Court

Koj tuaj yeem pom tias kuv tau siv ib leeg-channel ci ntsa iab LED es tsis txhob siv peb lub teeb ci ci. Thawj channel yog lub davhlau ya nyob twg tsis zoo lossis hauv av. Lwm peb txoj hauv kev yog liab, ntsuab thiab xiav.

Kuv muab cov xov hlau sib dhos ua ke hauv qab daim ntawv me me. Kuv tsis tau siv lub raj hlau.

Kuv siv cov hlau txuas los txuas cov xov hlau rau cov potentiometers. Txawm li cas los xij, qhov no tsis tsim nyog yog tias koj ua kom lub zog ruaj khov rau cov khoom ntim nrog cov xov hluav taws xob siab raws li qhia hauv daim duab npog ntawm kab lus no.

Kauj Ruam 3: Tsim Cov Duab puab

Kuv siv cov xov hluav taws xob siab los txuas rau pawg ntseeg hauv daim av ntawm cov duab puab no.

Kauj ruam 4: Xeem

Koj tuaj yeem pom hauv daim vis dis aus tias kev tswj hwm cov duab puab no raug txwv.

Koj tuaj yeem tig lub hwj chim ntsuas hluav taws xob hauv lub moos los yog cov lus qhia rov qab. Txoj haujlwm ntawm txhua ntawm ob lub hwj chim muaj peev xwm tuaj yeem muab cais ua 3 pawg tseem ceeb/teeb tsa:

- xoom tsis kam teeb tsa, - nruab nrab qhov nruab nrab tiv thaiv teeb tsa, - thiab kev tiv thaiv siab tshaj plaws.

Vim tias muaj ob lub potentiometers muaj 9 qhov muaj peev xwm tag nrho, vim tias txhua tus thawj potentiometer 3 teeb tsa/pawg tuaj yeem muaj ntxiv 3 teeb tsa/pawg rau lub zog thib ob.