LED street lighting

Zamknięty

Hi,

First of all please only people who has a lot of experience with LEDs.

I am trying to put together a LED street light prototype and I need help with the circuit so the whole thing does last as long as possible, does not blow up in the long term because of some electrical moshumushu magical thing and is very power efficient (every % of the power consumption matters!).

1) I need to know how to wire up high power LEDs in multiple strings where each of them can be dimmed by PWM signal from the micro controller. What I understood so far is that this will require "constant voltage" power supply which can be a bit tricky with LEDs.

For example I need to wire up 12 LEDs ([url removed, login to view]) into 2 to 4 strings, each dimmed with PWM and I am interested in how to do it in the most power efficient and safe way to do it so the LEDs don't suffer in the long term.

2) Secondly I would like to know how do I wire up for example 20 high power LEDs (the same ones) in the most power efficient and safe long term functioning way where all 20 LEDs can be controlled by a single PWM signal.

Umiejętności: Inżynieria elektryczna , Elektronika, Oświetlenie, Mikrokontroler

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Numer ID Projektu: #12089192

Przyznane użytkownikowi:

amelectronics

Hello dear I have experience in designing electronics circuits and can make your project. I will make your project practically on breadboard and will provide you circuit, code and PCB design along with gerber files. I Więcej

€40 EUR w ciągu 2 dni
(11 Ocen)
5.5

5 freelancerów złożyło ofertę na średnią kwotę w wysokości €82 do tego projektu.

uetian09ee506

I am an Electrical Engineer having specialization in Electronics and Control, teaching at Electrical Department FAST National University Pakistan. I am also persuing my MS degree in Electrical Engineering with speciali Więcej

€100 EUR w ciągu 3 dni
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6.9
€48 EUR w ciągu 1 dnia
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3.2
CarlHoffmann

Hi,Client.I am an expert in the electronic fields. I have 13 years experience in circuit, PCB design, and manufacture, firmware and application writting using DSP, VHDL, PLC, STM32, ATmel, PIC, Ardunio, ARM Embedded Więcej

€70 EUR w ciągu 5 dni
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€12 EUR w ciągu 1 dnia
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nitinsaini90

1. Putting a combination of series parallel in your street light will depend what is your input voltage. Each LED takes 2.77V and hence you can design a combination of series/parallel strings based on what your input v Więcej

€30 EUR w ciągu 1 dnia
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0.0