Counter Loj (2.75 "Zaub): 9 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:27

2.75 7-Segment LED Display Counter 0-9 yog txoj haujlwm raws cmos thev naus laus zis los ua haujlwm kom raug 7-Segment LED Zaub ntawm 6.8 V. IC 4026 lub txee xaiv tau yog lub txee ua haujlwm tsis muaj tus lej txiav txim, thiab nrog kev pab ntawm IC 555 timer: txoj haujlwm tuaj yeem ua tiav.

Kauj Ruam 1: Nqi Khoom

1 2.75 Common cathode 7-Segment LED Zaub

2 I C 4026 Lub txee

3 Kuv C 555 Timer

4 16 Pin Qhov (Socket)

58 Pin Qhov (Socket)

6 9 cm x 15 cm PCB

7 Electrolytic capacitor ntawm 47 uF

8 10K resistor

95k zog

10 7 x 470 Ohm resistor

119 V Roj teeb snap

129 V Roj Teeb

Kauj ruam 2: Schematic

Daim duab schematic yog qhov tseem ceeb nws ua raws kom koj tuaj yeem ua tiav txoj haujlwm yam tsis muaj teeb meem.

Kauj Ruam 3: Nruab 7-Segment LED Display

Thaum txhim kho lub teeb pom kev ntawm LED, koj tseem tuaj yeem ntxig 16 lub qhov (socket) rau hauv PCB.

Kauj Ruam 4: Txhim Kho Cov Tiv Thaiv ntawm 470 Ohm

Nruab ib lub resistors ntawm 470 Ohm nruab nrab ntawm cov zaub LED thiab IC4026.

Kauj Ruam 5: Ntxig rau 8 Pins Socket

Thaum tso rau ntawm PCB lub 8 tus pin ntsawb, koj tseem tuaj yeem txuas cov cathode tso tawm tus pin rau tus pin V (-) los ntawm IC 4026.

Kauj Ruam 6: Txhim Kho Capacitor & 10 K Resistor

Thaum txhim kho lub capacitor thiab 10 K resistor, koj tseem tuaj yeem ua tiav qhov tsis zoo ib yam los ntawm Circuit Court los ntawm kev txuas lub dav hlau tsis zoo los ntawm lub tshuab hluav taws xob rau tus pin 1 los ntawm IC555 timer thiab tus pin 2 los ntawm IC4026. Tom qab ntawd, koj tuaj yeem txuas lub davhlau ya nyob twg zoo los ntawm lub tshuab hluav taws xob rau tus pin 2 los ntawm IC555 timer thiab tus pin 6 los ntawm nws tus kheej. Ntawm tus pin 6 los ntawm IC timer kuj koom nrog lub davhlau ya nyob twg los ntawm tus tiv thaiv ntawm 10K kom tawm dawb lwm lub davhlau ya nyob twg ntawm tus tiv thaiv.

Kauj Ruam 7: Nruab 5 K Potentiometer

Thaum txhim kho 5 K lauj kaub thiab ua kev sib txuas rau IC 555 lub sijhawm, koj tseem tuaj yeem txuas lub davhlau ya nyob twg uas tos los ntawm 10 K resistor rau tus pin 7 ntawm IC tib yam. Hauv cov kauj ruam no, koj tuaj yeem ua tiav qhov ua tau zoo los ntawm Circuit Court.

Kauj Ruam 8: Nruab Lub Roj Teeb Snap

Txhawm rau txhim kho lub roj teeb snap, koj yuav tsum siv qhov zoo thiab qhov tsis zoo thiab txuas lawv mus rau liab & dub hlau los ntawm roj teeb snap feem.

Kauj Ruam 9: Ua tiav Txoj Haujlwm

Txhawm rau ua tiav txoj haujlwm, ntxig rau txhua qhov kev sib txuas ua ke rau hauv nws lub qhov (socket) thiab lub roj teeb rau hauv lub roj teeb snap.