NE555 Raws Li Qhov Hloov Pauv Hloov ON/OFF Timer (Hloov Kho 2018): 4 Cov Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:29

Txais tos, qee tus ntawm kuv cov phooj ywg suav nrog kuv tau ua D. I. Y teeb pom kev rau peb cov tsheb kauj vab tab sis raws li ib txwm lawv tau khib siab saib lwm lub teeb uas muaj npe. Vim li cas? Vim tias cov teeb no muaj qhov ua haujlwm strobe! lol Txhua tus ntawm kuv cov phooj ywg tau ua nws tus kheej lub teeb nrog cov tsev sib txawv teeb tsa, qhov muag teev, roj teeb, kev ua haujlwm voltage thiab amperage. Yog li, kuv xav tau los tsim ib lub voj voog kom haum rau txhua lub teeb uas tsis muaj kev siv zog ntxiv. Nov yog cov lus teb, 555 IC nws yog qhov kev xaiv zoo tshaj plaws pheej yig thiab nws yuav ua haujlwm rau txhua lub teeb. Tawm ntawm chav kawm peb tuaj yeem yuav cov khoom npaj tau thiab tseem pheej yig dua tab sis ua koj tus kheej los ntawm qhov kos nws lom zem. Tsis tas li kuv xav taw qhia tias kev siv cov khoom me me no tsis muaj qhov kawg. nws tuaj yeem yog lub tsheb kauj vab strobe teeb, teeb Christmas, teeb tsheb strobe thiab lwm yam. Tsuas yog siv koj lub tswv yim!

Ob peb lo lus hais txog qhov muaj zog 555 IC

Nws tuaj yeem ua haujlwm los ntawm 3VDC txog 16VDC MAX. Nws tuaj yeem xa 200mA cov zis los ntawm tus pin 3 yog li nws zoo rau tsav ob peb yam coj. Txawm li ntawd los, 200mA nws yog qhov tso tawm ntau tshaj yog li IC muaj kev nyab xeeb ntawm MAX tso tawm, tsis muaj qhov zoo! Kev daws teeb meem zoo dua yog siv lub transistor txhawm rau cuam tshuam nrog LOAD tsav los ntawm 555 IC thiab cia qhov thib ob ua nws txoj haujlwm thiab los ntawm qhov kuv txhais tau tias, suav rau kev ua haujlwm strobe. Kuv yuav tsis mus tob dua txog kev ua haujlwm ntawm 555. Muaj ntau cov ntaub ntawv tawm yog tias ib tus neeg xav paub txhua yam txog 555 kev ua haujlwm. Kuv lub hom phiaj yog los pab tus pib ua nws tus kheej 555 strobe nrog cov ntaub ntawv yooj yim nrog tsis meej pem, Kuv vam tias! Kuv yuav zoo siab yog tias kuv tuaj yeem pab nrog cov lus qhia no. Yog li, cia pib …

Kauj Ruam 1: QHIA LOAD & TOOLS

Ntxiv kev txhawb nqa rau koj 555OUTPUT LOAD & TRANSISTORS - qhov twg yog qhov zoo tshaj rau txoj haujlwm? Nov yog qee qhov transistors los ntawm Low-power rau Hi-power qhov twg tuaj yeem siv tau hauv qhov no. LOAD = yog Amperage (A) lub teeb, coj kos thaum qhib. 1A = 1000mA

Rau 200mA LOAD => BC547 NPN Rau 500mA LOAD => BC337, 2N1711 NPN Rau 1, 5A LOAD => BD135 NPN Rau 3A LOAD => TIP31, BD241 NPN Rau 4A LOAD => BD679 NPN Rau 5-15A LOAD => TIP3055 N -gate (nws TSIS YOG qhov pom zoo rau kab lus no PCB vim tias cov kab me me yog nyias thiab ze rau ib leeg los tswj 5A> thauj khoom). Tswv yim: tsis txhob siv 500mA transistor rau 500mA thauj khoom yam tsis muaj cua sov. Nws yog qhov zoo tshaj los siv 1A transistor xwb.

TOOLS NEEG YUAV TSHUAJ Tua Hluav Taws. Tsis ntau tshaj 25W Cov Kab Hlau 0.5mm-1.0mm Yuav Ua Li Cas Soldering Daim txhuam cev Jel-flux rau qhov siv lub tshuab xaim hlau me me Laum = 0, 7mm feem ntau & 1mm rau cov xov hlau thiab Q1 transistor Mini hobby Handheld laum tshuab Digital multimeter

Kauj Ruam 2: 555 Raws li 1: 1 On/off Cycles

PCB - Luam Circuit Court Board rau 1: 1 rau/tawm sijhawm Lub pcb me me txaus kom haum rau yuav luag txhua lub DIYY lub teeb. Koj tuaj yeem rub tawm thiab luam tawm PCB txheej txheem nrog kev pab ntawm ib qho software software uas nws tuaj yeem rov tsim cov duab ntawm qhov luam tawm ua ntej zoo li corel yees duab xim. Qhov ntev yuav tsum yog 21, 5mm x 32mm ntawm 72dpi daws teeb meem. Luam tawm PCB ib yam li, tshem cov tooj liab siv cov txheej txheem tshuaj uas koj xav tau, siv cov tho me me raws li koj tuaj yeem qhib lub qhov, siv tib lub dav hlau ya mus rau tooj liab yog nws yuav pab thaum siv lub tshuab thiab tom qab ntawd tig nws ib sab mus rau qhov chaw. cov khoom. Ua tib zoo saib xyuas thaum tso cov khoom sib xws nrog D1 diode thiab C1 capacitor. Rau cov coj, lub davhlau ya nyob twg ntev qhia qhov anode (zoo +). Rau Q1 transistor pom cov txheej txheem thiab tawm ntawm chav kawm kos 555. Muaj ib puag ncig teev nyob rau sab saum toj ntawm 555 ze tus pin 1 qhia tus lej tus lej (1).

PARTS LIST - rau 555 1: 1 rau/tawm sijhawm Txhua tus tiv thaiv 1/4 W R1 = 1K R2 = 10K R3 = 1K R4 = 680 rau 5mm liab coj. 470 rau dawb 5mm coj D1 = 1N5817 Schottky diode D2 = LED RED 5mm lossis WHITE LED 5mm C1 = 33uF / 25V electrolytic capacitor C2 = 10nF Q1 = BD135 NPN transistor IC1 = 555 (NE555), 8 tus pin din (rooj plaub) PCB = txog 25mm x 35mm qee cov xaim xaim COST = tsis ntau dua 4 euro

OPERATION & ABJUSTMENT - rau 555 1: 1 rau/tawm sijhawm Vim tias muaj D1 Schottky diode li thim rov qab tiv thaiv polarity koj yuav pom qhov sib txawv ntawm cov tswv yim thiab tso tawm txog 0, 3 - 0, 5V. Qhov ntawd yog ib txwm rau Schottky diodes. Nws zoo dua los tiv thaiv lub Circuit Court los ntawm rov qab polarity dua li hlawv txhua yam. Txhawm rau kho cov zis hauv hertz = cycles ib ob (strobes) nws tsuas yog yuav tsum tau hloov C1 lub tshuab hluav taws xob. Rau luv strobes siv lub zog me me hauv uF thaum lub sijhawm ntev strobes siv lub zog loj dua hauv uF. Yog C1 = 47uF ces nws yog kwv yees li 1 Hertz (1 strobe ib ob). Yog tias C1 = 33uF ces nws hais txog 2 Hertz thiab ntxiv rau. Yog tag nrho!

Kauj Ruam 3: 555 Nrog Hloov Pauv Hloov/Sijhawm Sijhawm

Nov yog cov txheej txheem rau kev sib txawv ntawm / tawm lub sijhawm siv 2 trimmer. ### Hloov kho tshiab: txij 9/12/2012 txhua cov ntaub ntawv ntawm ntu no tau hloov kho tshiab vim cov ntaub ntawv tsis raug yav dhau los ### kuv thov txim!

SCHEMATIC & PCB 2 (A), 2 (B) Rub tawm 2 (A) PCB & cov khoom tso rau hauv cov duab yog tias koj tab tom siv 10mm kab rov tav txiav. PCB qhov ntev yog h = 31mm x w = 37mm Rub tawm 2 (B) PCB & cov khoom tso rau hauv cov duab yog tias koj tab tom yuav siv 10mm ntsug ntau tig tig txiav, cov no raug ntau dua thiab tseem txuag qee qhov chaw los ntawm PCB. Qhov ntev yog h = 32mm x w = 33mm.

ABJUSTMENT - rau 555 nrog qhov sib txawv ntawm/tawm lub sijhawm Nws yooj yim tsim thiab muaj ntau yam, vim tias yog xav tau sijhawm ntau dua txhua qhov nws xav tau yog hloov C1 lub tshuab hluav taws xob nrog tus nqi loj dua hauv uF. POT1 tau siv rau lub sijhawm nquag ntawm lub sijhawm (ntawm). POT2 yog siv rau lub sijhawm tsis siv sijhawm (tawm). Ib zaug ntxiv, koj tuaj yeem siv ib qho NPN transistor tawm ntawm Amperage xav tau. Lub zog ua haujlwm yog 5 - 15VDC.

PARTS LIST - 555 nrog qhov sib txawv ntawm/tawm lub sijhawm ntawm txhua lub resistors 1/4 W R1 = 1K R2 = 1K R3 = 470 POT 1, 2 = 100K trimmer LOSSIS ntau tig tig lub zog potentiometers R4 = 680 rau 5mm liab coj. 470 rau dawb 5mm coj D2, 3 = 1N4148 LED RED 5mm lossis WHITE LED 5mm C1 = 10uF / 25V electrolytic capacitor C2 = 10nF ceramic capacitor Q1 = BD241 NPN transistor IC1 = 555 (NE555), 8 tus pin din (rooj plaub) COST = tsis ntau tshaj 6 euro

Kuv vam tias cov lus qhia no tau pab tau zoo thiab yog tias koj muaj lus pom, tawm tswv yim, tswv yim lossis lus nug thov ua li ntawd.

Kauj Ruam 4: Hloov Kho PCB Xyoo 2018

Nov yog qhov hloov tshiab PCB ntawm LM555 raws lub sijhawm uas tuaj yeem haum rau ib qho tig lub zog txiav tshuab lossis txiav ntau lub tshuab txiav kom zoo tshaj qhov koj xav tau.

Tsis tas li, vim tias C1 lub tshuab hluav taws xob hluav taws xob muaj lub luag haujlwm rau lub sijhawm, tej zaum yuav xav tau hloov nws ntau dua li ib qho nrog lwm tus nqi. Txhawm rau kom yooj yim siv thiab rau lub hom phiaj ntawm PCB, C1 hloov nrog 2-Pin PCB Screw Terminal Block Connector. Txhua yam peb yuav tsum ua tam sim no yog txhawm rau C1 rau lub txuas txuas kom tsis txhob tev tawm ntawm nws thiab lim ntau zaus PCB los ntawm tshav kub.

Nco ntsoov txoj cai rau C1:

C1 (electrolytic capacitor) yog lub luag haujlwm rau lub sijhawm siab tshaj plaws hauv Circuit tuaj yeem qhib / OFF.

Tus nqi qis tshaj hais tias 1uF = txheeb sijhawm sib nrug.

Tus nqi hluav taws xob siab hais tias 100uF = ncua sijhawm ntev dua.

Kho lub timer:

POT1 (potentiometer): teeb tsa lub sijhawm xav tau ntawm lub sijhawm uas lub Circuit Court yuav tig rau lub cuab yeej txuas (hauv qhov txwv ntau tshaj ntawm lub sijhawm C1 tuaj yeem muab).

POT2 (potentiometer): teeb tsa lub sijhawm xav tau ntawm lub sijhawm uas yuav kaw lub kaw lus txuas nrog (tsis pub dhau lub sijhawm txwv C1 tuaj yeem muab tau).

Yog tias koj yuav siv cov txheej txheem hlau rau PCB, luam tawm rau hauv xov xwm PCB cov duab raws li tau ua kom ntseeg tau tias kab rov tav qhov ntev yog 63mm.

Rub tawm cov ntaub ntawv 7zip uas muaj tag nrho cov duab thiab cov ntawv PCB hauv TIFF hom ntawv.

Ua raws cov duab piav qhia kom tso cov khoom sib txuas ntawm PCB. Nws yooj yim heev!

Nws yog lub rooj sib tham zoo los ua si nrog thiab kawm, muaj ntau yam thiab siv tau zoo li nws tuaj yeem siv rau hauv ntau daim ntawv thov.

Muaj kev lom zem!