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LED ntawm AC Mains: 3 Kauj Ruam
LED ntawm AC Mains: 3 Kauj Ruam

Video: LED ntawm AC Mains: 3 Kauj Ruam

Video: LED ntawm AC Mains: 3 Kauj Ruam
Video: Connect 3V LED Directly With 220V AC Supply - Using Resistor 2024, Kaum ib hlis
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LED ntawm AC Mains
LED ntawm AC Mains
LED ntawm AC Mains
LED ntawm AC Mains
LED ntawm AC Mains
LED ntawm AC Mains

Tseem ceeb: Sim tsuas yog ua tau zoo hauv kev ua haujlwm nrog AC Mains Ib daim duab yooj yim rau ib qho LED ntawm AC Mains 110v lossis 230 volts lossis txawm tias DC roj teeb !!!

Kauj Ruam 1: Tshooj & Sib dhos

Qhov Chaw & Los Ua Ke
Qhov Chaw & Los Ua Ke
Qhov Chaw & Los Ua Ke
Qhov Chaw & Los Ua Ke
Qhov Chaw & Los Ua Ke
Qhov Chaw & Los Ua Ke

Qhov chaw: 1. Ib qho LED - 5mm lossis 10 mm ntawm ib qho xim 2. Ib qho diode, nyiam dua 1N 4007 3. Lub resistor ntawm 2 watts lossis siab dua qhov ntsuas, ntawm tus nqi qhov twg los ntawm 22 kilo ohms mus txog 100 kilo ohms. 4. Ib tus txiv neej ob tus pin ntsaws (hollow) Qis resistor qhov tseem ceeb yuav muab ci ntau dua thiab qhov txiaj ntsig siab dua yuav ua rau LED lub neej ntev dua. Yog li xaiv qhov kev sib pauv, nyob ntawm qhov xav tau. Cov wattage qis dua ntawm resistor zoo li 1/2 watt lossis qis dua yuav tsis ua thiab yuav hlawv vim tias lawv tau npaj rau 6v DC circuits, tsis yog rau 220v AC Mains. Assembly: 1. Txuas dub anode ntawm diode rau qhov tsis zoo ntawm cov coj. 2. txuas lub resistor mus rau qhov zoo ntawm LED. 3. Txuas qhov kawg pub dawb ntawm diode thiab resistor rau tus txiv neej pin. Ua tiav Saib daim duab txuas kom pom meej. Lwm qhov txuas nrog lub diode txuas nrog "hla" LED kuj tau txuas nrog. Ib lub hauv paus teeb pom kev zoo siv tsis yog txiv neej tus pin. Nws yuav tsum ua haujlwm ntawm 110v AC ntxiv rau 220v AC Mains systems. DC Nta: Nws tseem yuav ua haujlwm ntawm txhua lub roj teeb !! Ib zaug ntxiv, nyeem "Tseem ceeb" thawj kab, yog tias koj tsis nco nws ….

Kauj ruam 2: Kho kom raug: Plaub Hlis 2014

Cov lus qhia no tau dhau los ua neeg nyiam thiab nkag siab zoo qhia rau kuv tias txawm hais tias "tseem ceeb" tsis lees paub txog kev txawj ua haujlwm nrog AC Mains, ntau tus neeg tshiab kuj tseem tuaj yeem koom ua ib qho. Yog li ob peb lus qhia raws li hauv qab no: Txij li tsuas yog siv ob lub Cheebtsam, ob qho ntawm lawv yuav tsum muaj zog kom tiv taus AC Mains load. 1. Cov diode uas kuv tau siv yog 1N4007. Qhov 1N4007 diode no tau ntsuas rau 1000 volts thiab yog li muaj zog tiv taus ob qho 110 v AC ntxiv rau 220 v AC Mains uas txawv teb chaws ua raws. Nws tseem npaj tau, kuv twv. 2. Tus resistor 22 kilo ohm thiab siab dua, yuav tsum ntsuas kom tsawg li ob watts lossis siab dua. Qhov no yuav ua kom ntseeg tau tias nws yuav tsis hlawv vim ua haujlwm tas li. Tus resistor yog tus txwv tam sim no. Nws txwv AC Mains tam sim no thiab hloov nws kom sov thiab tom qab ntawd tso nws tawm. HEAT yog teeb meem, vim tias tsis siv lub tshuab hluav taws xob. Txawm li cas los xij, txij li kev siv wattage resistor siab dua, nws yuav tsis poob. Kev tiv thaiv qis dua qis dua yuav ua tsis tiav thiab tuaj yeem ua rau puas tsuaj. Thov ua lub luag haujlwm thiab ua tib zoo ntsuas koj txoj haujlwm. 3. Kuv siv tsis tau lub capacitor (tsis yog polarized ceramic capacitor rau AC Mains) txij li qhov chaw yog qhov txwv nyob hauv tus txiv neej tus pin. Yog ua tau, siv ib qho: 0.22 uF lossis 224 K, ntsuas rau 400 volts, yog tias koj nyob ntawm 220 VAC Mains 0.47 uF, tus nqi rau 250 volts, yog tias koj nyob ntawm 110 VAC Mains. Saib kuv lwm Cov Lus Qhia, rau cov haujlwm uas siv ntau LEDs thiab yog li ntawd lub peev xwm. Saib kuj muaj lwm yam kev sib txuas hauv lub vev xaib no thiab hauv internet.

Kauj Ruam 3: Kuv Cov Yeeb Yaj Kiab YouTube:

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