Cov txheej txheem:

555 Kho Lub Sijhawm (Ntu -2): 4 Cov Kauj Ruam
555 Kho Lub Sijhawm (Ntu -2): 4 Cov Kauj Ruam

Video: 555 Kho Lub Sijhawm (Ntu -2): 4 Cov Kauj Ruam

Video: 555 Kho Lub Sijhawm (Ntu -2): 4 Cov Kauj Ruam
Video: tuaj peb ຫຼີ້ນ ເກມ nawb 2024, Kaum ib hlis
Anonim
555 Cov Sijhawm Hloov Kho (Ntu-2)
555 Cov Sijhawm Hloov Kho (Ntu-2)

Hav guys!

Kawm paub yuav ua li cas thiaj tuaj yeem kho lub sijhawm nrog qhov hloov pauv qeeb los ntawm 1 - 100 vib nas this uas siv 555 IC. Lub 555 timer tau teeb tsa ua Monostable Multivibrator.

Cia peb tuaj ntawm qhov chaw peb tawm mus zaum kawg. Rau cov neeg uas tsis pom Tshooj-1 NYEEM NTAWV NO.

Kauj Ruam 1: Tsim Pawg Thawj Coj

Pawg Thawj Coj
Pawg Thawj Coj

Daim duab qhia tau hais tias tsim PCB pawg thawj coj los ntawm LionCircuits. Lawv lub tshuab siv tshuab ua rau nws yooj yim dua rau kev xaj online thiab tau txais cov khoom lag luam zoo thiab nrawm PCBs.

Cia peb pib nrog kev sib sau ua ke ntawm pawg tswj hwm no.

Kauj Ruam 2: Cov Rooj Sib Tham Cov Rooj Sib Tham

Cov Rooj Sib Tham Cov Rooj Sib Tham
Cov Rooj Sib Tham Cov Rooj Sib Tham

Daim duab saum toj no qhia tag nrho cov khoom sib dhos ua ke ntawm PCB pawg thawj coj. Muab ob npaug rau xyuas cov khoom nrog polarities. Thaum kawg, muab lub tshuab fais fab txuas rau PCB. Thaum txhua qhov khoom siv sib txuas rau ntawm PCB, koj tuaj yeem txuas qhov thauj khoom hla cov chaw xa khoom.

LM555 muaj qhov ntsuas hluav taws xob siab tshaj plaws ntawm 16V thaum lub zog txuas lub tshuab hluav taws xob txuas ntawm 12V. Vim li no 12V lub zog siv hluav taws xob tau siv los txo tus naj npawb ntawm cov khoom siv xws li cov ntsuas hluav taws xob tawm. Thaum tus pin 2 ntawm LM555 tau tshwm sim (los ntawm luv nws mus rau hauv av) los ntawm kev hloov pauv tam sim S1, lub timer tau pib.

Kauj ruam 3: Ua haujlwm

Lub sijhawm ua haujlwm tso tawm cov mem tes nrog lub sijhawm ON lub sijhawm txiav txim los ntawm RC network piv txwv li t = 1.1RC. Hauv qhov no, tus nqi ruaj khov ntawm lub capacitor yog 100uF. Tus nqi ntawm R suav nrog 10KΩ resistor hauv koob nrog 1MΩ potentiometer. Peb tuaj yeem hloov pauv lub hwj chim kom hloov pauv lub sij hawm ntawm cov zis mem tes.

Piv txwv li, yog hais tias tus potentiometer tau teeb tsa rau 0Ω, tus nqi R yog sib npaug rau 10KΩ. Li no t = 1.1 x 10K x 100u = 1 thib ob.

Tab sis yog tias lub lauj kaub tau teeb tsa rau 1MΩ, tus nqi R yog sib npaug rau 1MΩ + 10KΩ = 1010KΩ. Li no t = 1.1 x 1010K x 100u = 100 vib nas this.

Kauj Ruam 4: Tso Tawm

Tso zis
Tso zis
Tso zis
Tso zis

Thaum lub timer pib, lub relay tig ON. Vim li no qhov sib xws (COM) davhlau ya nyob twg ntawm kev xa xov yog luv rau qhov Qhib Qhib (TSIS) Lub zog muaj zog tuaj yeem txuas nrog lub davhlau ya nyob twg xws li lub teeb lossis lub twj tso kua dej. Lub transistor Q1 ua raws li kev hloov pauv kom ntseeg tau tias lub zog tsav tam sim no tau muab rau kev xa tawm. Diode D1 ua raws li flyback diode uas tiv thaiv transistor Q1 los ntawm qhov ntsuas hluav taws xob tshwm sim los ntawm kev xa xov txuas.

LED2 tig los txhawm rau qhia tias thaum twg lub relay tau qhib. LED1 qhia tias lub Circuit Court tau qhib. SPDT hloov S3 yog siv los hloov lub Circuit Court ON. Capacitors C2 thiab C4 tau siv los lim lub suab nrov hauv kab khoom.

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