Kev Tiv Thaiv Tsis Muaj Qhov Sib Txuas: 15 Cov Kauj Ruam (nrog Duab)

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

3 Txoj Hauv Kev Los Tsim Koj Tus Kheej Tus Kheej Tsis Muaj Qhov Tiv Thaiv Qhov Tsawg Rau Tsawg Dua Li Nyiaj

Taw qhia ------------

Thaum hluav taws xob tsis ua haujlwm zoo, nws ua rau hluav taws xob poob nrog qhov ua tsis zoo; uas yog vim li cas kev nyab xeeb yuav tsum yog thawj zaug thaum ua haujlwm nrog hluav taws xob lossis khoom siv hluav taws xob. Txhawm rau zam kev raug mob, ua ntej yuav pib ua haujlwm ntawm lub thawv hluav taws xob xws li AC hloov pauv hluav taws xob lossis lub hwj chim, koj yuav tsum xub xub txheeb xyuas tias tsis muaj AC voltage. Nws yog qhov nyuaj heev kom cais cov cuab yeej los ntawm cov khoom siv tseem ceeb; Yog li, koj yuav ua li cas thiaj paub tseeb tias tsis muaj qhov hluav taws xob seem?

Kauj ruam 1:

Muaj ntau qhov kev xaiv muaj nyob hauv kev ua lag luam thiab lawv sib txawv hauv tus nqi, tab sis yog tias koj tsis xav siv nyiaj ntau thiab yog tias koj yog tus hlub tiag DIY, Qhov Tsis Tiv Tauj AC qhov ntsuas hluav taws xob yog qhov kev xaiv zoo rau koj. Tom qab saib cov vis dis aus no koj yuav tsum muaj peev xwm ua koj tus kheej AC tester rau tsawg dua li daus las.

Kauj Ruam 2: Cov ncauj lus npog

Hauv daim vis dis aus no kuv yuav qhia koj 3 txoj hauv kev los ua koj tus kheej Tiv Tauj Tsawg AC Voltage Detectors siv:

• IC 4017 Kaum Xyoo Txee
• 555 Sijhawm IC
• 3 x Lub Hom Phiaj NPN Transistors

Kauj ruam 3:

Tag nrho cov ntsuas hluav taws xob ua haujlwm ntawm cov hauv paus ntsiab lus yooj yim ntawm hluav taws xob induction.

Ib qho chaw sib nqus tau tsim nyob ib puag ncig tus neeg nqa khoom nqa tam sim no thiab yog tias tam sim no dhau los ntawm tus neeg xyuas pib hloov pauv tam sim no (AC), qhov sib nqus sib nqus tsim tawm txawv ib ntus. Thaum peb tso tus kav hlau txais xov ze rau ntawm qhov khoom siv dag zog AC, lub zog me me tau nkag mus rau hauv lub kav hlau txais xov vim yog hluav taws xob nqus. Los ntawm kev nthuav dav tam sim no peb tuaj yeem teeb lub LED lossis lub tswb nrov, qhia tias AC qhov hluav taws xob tam sim no.

Kauj Ruam 4: Teeb Siv IC 4017

Cia peb pib peb qhov kev sib tham los ntawm kev sib dhos Circuit Court siv IC 4017. IC 4017 yog 16 Pin Decade counter, nws tau siv rau kev suav ntau yam tsis suav nrog. Nws tuaj yeem suav txij 0 txog 10 (suav xyoo caum) ua ntu zus hauv lub sijhawm tau teev tseg ua ntej thiab rov pib suav lossis tuav nws thaum xav tau.

Rau qhov teeb tsa no peb xav tau:

• SIB 4017
• 2N2222 Lub Hom Phiaj Loj NPN Transistor
• 100 μF Capacitor
• LED
• 220Ω thiab 1K Resistor
• Buzzer
• thiab Homemade Antenna

Kauj ruam 5:

Txuas Pin-1 ntawm IC mus rau 1K resistor. Lwm qhov kawg ntawm tus tiv thaiv txuas rau lub hauv paus ntawm transistor.

Tom ntej txuas tus pin sau rau -ve ob txhais ceg ntawm LED, Transistor thiab lub suab nrov. Cov +ve ceg txuas rau +ve tsheb nqaj hlau ntawm Circuit-board. Cov tsheb ciav hlau tsis zoo txuas rau Emitter, Pin-8, Pin-13 thiab Pin-15 ntawm IC. Tus kav hlau txais xov txuas nrog tus Pin 14 uas yog tus pin nkag lub moos. Thaum tus kav hlau txais xov tau txais lub moos pulses nws nce lub txee thiab LED taws. Koj tuaj yeem txuas lub xov tooj txuas nrog Pin-1 mus rau ib qho ntawm cov Pin Output ntawm IC. Yog tias koj xav tau koj kuj tseem tuaj yeem txuas 3 lossis 4 LEDs rau Cov Pins Tso Tawm kom muab nws chaser zoo li cov nyhuv.

Kauj Ruam 6: 4017 Demo

Tam sim no cia ua qhov kev sim nrawm. Tsiv ib lub xov tooj nyob ze rau ntawm lub kauj ua rau lub suab nrov thiab LED kom nyem. Tab sis raws li koj tuaj yeem pom, qee qhov xwm txheej LED thiab lub suab nrov yuav tsis ploj mus txawm tias tom qab kuv tshem cov hlau tawm. Tsis tas li, qhov teeb tsa no ci thaum kuv tso kuv cov ntiv tes ncig lub kauj. Zoo nkauj npaum li txhua qhov vis dis aus thib ob hauv YouTube tau tsim los siv IC qhov ua rau tus neeg tsis nkag siab no. Tab sis hais lus ncaj ncees Kuv tsis txaus siab rau qhov teeb tsa no.

Kauj Ruam 7: Teeb Siv IC 555

Hauv qhov teeb tsa thib 2 Kuv tab tom siv 555 timer IC.

555 timer yog cov khoom siv feem ntau siv hauv DIY cov phiaj xwm hluav taws xob vim tias nws me me, pheej yig, thiab muaj txiaj ntsig zoo. Qhov Circuit Court no yooj yim heev. Thaum qhov hluav taws xob ntawm Pin-2 poob qis dua 1⁄3 ntawm VCC qhov tso tawm ntawm Pin-3 mus siab thiab LED teeb tuaj. Tsuav tus pin no tseem khaws cia ntawm qhov hluav taws xob qis, OUT tus pin yuav nyob HIGH. Yog li, thaum tus kav hlau txais xov pom qhov hloov pauv ntawm cov khoom tso tawm mus HIGH thiab LOW thiab LED flashes raws li.

Rau qhov teeb tsa no peb xav tau:

• Ib 555
• 4.7 μF Capacitor
• LED
• 220Ω thiab 10K Resistor
• Buzzer
• thiab Homemade Antenna

Kauj ruam 8:

Txuas Pin-1 rau hauv av. Pin-2 rau tus kav hlau txais xov. Pin-3 rau LED thiab lub suab nrov. Pin-6 rau +ve ceg ntawm tus capacitor thiab Pin-7 rau ib kawg ntawm 10K resistor. Tom qab ntawd Pin-6 lossis Tus Threshold tus pin thiab Pin-7 lossis tus pin tso tawm yuav tsum txuas nrog ib leeg. Pin -8 thiab lwm qhov kawg ntawm 10K resistor txuas rau +ve txoj kev tsheb nqaj hlau ntawm Circuit Court, thiab thaum kawg txuas tag nrho -ve ob txhais ceg mus rau txoj kev tsis zoo ntawm lub rooj tsav xwm.

Kauj Ruam 9: 555 Demo

Yog lawm, tam sim no cia ua qhov kev sim nrawm.

Raws li peb nqa cov xov hlau nyob ze rau tus kav hlau txais xov lub suab nrov thiab LED pib nrov nrov thiab ntsais muag; thiab, yog tias kuv tso kuv txhais tes nyob ib ncig ntawm tus kav hlau txais xov nws tsis muaj kev cuam tshuam rau hauv Circuit Court. Uas ua rau qhov teeb tsa no ntseeg tau ntau dua li kuv tsis tau txais cov ntawv tsis raug.

Kauj Ruam 10: Teeb Siv Siv Transistors

Hauv qhov teeb tsa zaum kawg kuv siv 3 2N2222 Lub Hom Phiaj NPN transistor.

Raws li peb paub lub transistor muaj peb lub davhlau ya nyob twg - emitter, hauv paus thiab tus sau. Tus neeg sau rau emitter tam sim no yog tswj los ntawm lub hauv paus tam sim no. Thaum tsis muaj lub hauv paus tam sim no, tsis muaj dej ntws tam sim no los ntawm tus neeg sau khoom mus rau tus emitter. Yog li, transistor ua haujlwm zoo li hloov. Yog li, tus transistor tuaj yeem ON, OFF lossis nyob nruab nrab.

Rau qhov teeb tsa no peb xav tau:

• 3 x 2N2222 Lub Hom Phiaj Transistors
• 1M, 100K thiab 220Ω Resistor
• LED
• Buzzer
• thiab Homemade Antenna

Kauj ruam 11:

Txuas tus kav hlau txais xov mus rau lub hauv paus ntawm 1st transistor. Tus emitter txuas rau lub hauv paus ntawm 2nd transistor thiab zoo ib yam nrog rau tom ntej. Tom qab ntawd txuas 1M tus tiv thaiv rau tus neeg sau ntawm 1st transistor, 100K mus rau 2nd thiab 220Ω hauv kab nrog LED thiab lub suab nrov. Tom qab ntawd, txuas txhua tus tiv thaiv mus rau +ve txoj kev tsheb nqaj hlau ntawm Circuit Court. Thiab thaum kawg av emitter ntawm tus thib 3 transistor.

Kauj Ruam 12: Demo Transistor

Hauv qhov teeb tsa no, tus kav hlau txais xov txuas nrog lub hauv paus ntawm thawj transistor. Thaum peb txav tus kav hlau txais xov ze rau ntawm AC cov khoom muaj zog, lub zog me me tau nkag mus rau hauv lub kav hlau txais xov vim yog lub tshuab hluav taws xob nqus. Qhov tam sim no ua rau thawj lub transistor thiab cov txiaj ntsig ntawm thawj transistor ua rau qhov thib ob thiab thib peb. Tag nrho cov txiaj ntsig (lossis qhov sib piv ntawm cov neeg sau khoom tam sim no rau cov hauv paus tam sim no) yuav yog qhov sib npaug ntawm peb. Tus transistor thib peb tig rau ntawm LED thiab lub tswb nrov, qhia tias muaj AC voltage.

Yog li, qhov ci ci ntawm LED tag nrho yog nyob ntawm lub hauv paus-tam sim no. Raws li qhov ntws nce LED lub ci ci mus rau qhov siab muab nws ua kom ploj. Koj yuav tsum tau nyob ze tiag tiag kom ua tau qhov no los ua haujlwm. Tej zaum yog tias kuv tshem lub kav hlau txais xov npog nws yuav ua haujlwm tau zoo, tab sis qhov Circuit no tsis tuaj yeem ua rau kuv zoo siab.

Kauj Ruam 13: Soldering

Kuv tsis paub txog koj tab sis kuv nyiam qhov teeb tsa siv 555 timer IC. Yog li, tsis tas yuav nkim sijhawm cia pib siv tag nrho cov khoom siv rau lub rooj tsav xwm.

Kuv yuav pib los ntawm kev siv lub hauv paus lossis lub qhov (socket) ntawm IC. Lub qhov ntsaws IC tau siv los ua tus muab rau ICs. Lawv tau siv los txhawm rau tso kev nyab xeeb tshem tawm thiab ntxig rau ICs vim tias IC chips yuav raug puas tsuaj los ntawm tshav kub thaum siv cov laug. Tom ntej no, Kuv tab tom muab 220Ω Resistor, LED thiab Buzzer rau Pin-3 ntawm IC. Tom qab ntawd, Kuv tab tom siv lub 10K resistor thiab Capacitor rau lub rooj tsavxwm.

Thaum txiav txim siab cov cuab yeej siv hluav taws xob hauv tsev, koj kev nyab xeeb yog lub hom phiaj tseem ceeb. Yog tias koj tab tom ntsib cov nuj nqis siab, teeb ci thiab cov khoom siv puas hauv koj lub tsev, mus tom ntej thiab ua ib qho ntawm no kom ntseeg tau tias lub tsev nyob hauv tsev tau ua haujlwm zoo.

Tom ntej no, Kuv tab tom siv lub 9V Roj Teeb Snap-on Txuas Txuas Txuas rau lub phaj. Thaum soldered, Kuv txuas txhua tus +ve thiab -ve tus pin raws li daim duab qhia chaw. Thaum txhua yam nyob hauv qhov chaw nws yog lub sijhawm rau kuv los teeb lub kav hlau txais xov hauv tsev.

Kauj Ruam 14: Xeem

OK, tam sim no qhov nthuav me ntsis. Cia saib seb qhov kev sib dhos no ua haujlwm zoo li cas thaum muaj xov hlau nyob ze rau nws. Zoo li kuv tau ntaus jackpot. Yog li, tam sim no koj tsis muaj laj thawj los liam lub tebchaws lub hwj chim thaum koj muaj lub xov tooj tsis zoo nyob hauv peb lub tsev. Mus tom ntej thiab tshawb xyuas tam sim no….