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Constant Voltage LED Board

$250-750 USD

Fechado
Publicado há mais de 9 anos

$250-750 USD

Pago na entrega
i want to design High Power LED Board for outdoor LED Light fixture to drive with Constant Voltage. we should also have Over voltage , Over current and over temperature protection
ID do Projeto: 6271632

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19 propostas
Projeto remoto
Ativo há 10 anos

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19 freelancers estão ofertando em média $608 USD for esse trabalho
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Hi! Our team can do this work. We are specialists in the field of industrial electronics, digital and analog circuit design, microcontrollers. Please contact us if you are interested. Best regards, Oleksandr.
$749 USD em 30 dias
4,9 (33 avaliações)
7,2
7,2
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Hi. Im new and do this cheaper then anybody. "High power LEDs" - what is it? Voltage, current? How many chanels do you need?
$277 USD em 3 dias
4,9 (26 avaliações)
5,2
5,2
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Hi, I'm an electronics engineer with more than 6 years of experience in designing and developing various digital and embedded systems... Currently I help engineering students to complete their academic projects. Also conduct seminars and workshops on Microcontrollers and Robotics... So I have experienced with a lot of Microcontrollers such as PIC, AVR, ARM, Arduino etc. I'm also experience with a lot of sensors and sensor modules.... I'm very proficient with EAGLE too... Please check my completed projects and reviews given by other employers...:-) You didn't mention anything about the voltage(Hope its 12V...:-)), current or power... If we have a lot of LED boards we can connect it in parallel and even use 24V or greater...:-) I really would like to know more about your project, kindly let me know if you are interested...:-) Thank You
$300 USD em 15 dias
4,9 (13 avaliações)
4,1
4,1
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A proposal has not yet been provided
$1.000 USD em 21 dias
4,4 (13 avaliações)
4,1
4,1
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Dear sir Usually led drivers provide constant current, not constant voltage. Can you clarify on that? Best regards Antonio Leite
$833 USD em 30 dias
4,5 (3 avaliações)
3,3
3,3
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Thank you for your consideration of this proposal. I have recently completed a project that was high power LED driver for a medical application. This was a 200W source which is probably much higher power than what you are looking for. Typlically, LEDs are driven with a constant current, not constant voltage, even if the power source is a constant voltage. There are lots of inexpensive ICs and discrete semiconductors on the market to do this. The good news about this type of driver is that it is insensitive to even very large voltage fluctuations so over voltage protection is not necessary. Is the voltage source AC or DC and at what voltage and current capability? In either case, there are plenty of devices on the market to do the job. The one that I used was the Powtech PT4115 which cost about $4.50 but there are much cheaper choices. There are many devices on the market that will drive high power LEDs directly of of line AC line voltage with out a step down transformer and they are dirt cheep. Over current and over temperature protection is already built in to almost all of these devices. Pleas fell free to contact me to discuss you project at your convenience. Thank You Tim Woolaver
$555 USD em 10 dias
5,0 (1 avaliação)
2,3
2,3
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I am electrical Engineer and can work very easily. give me a chance please ..........................................
$555 USD em 10 dias
0,0 (0 avaliações)
0,0
0,0
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Hello, I have 3 years of experience in Electronics, both analog and digital, and have done several projects involving LED's and I have designed all of their PCB's. even though I'm new to freelancer.com but I promise you that you won't regret working with me. thank you.
$400 USD em 10 dias
0,0 (0 avaliações)
0,0
0,0
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Hi there, I'm a senior electronic engineer/designer, doing designs & developments of final & reliable products for over the last 30 years. I do also familiar with High Power LED applications. Cheers & regards, Yenky AAYK
$700 USD em 17 dias
0,0 (0 avaliações)
0,0
0,0
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A proposal has not yet been provided
$366 USD em 10 dias
0,0 (0 avaliações)
0,0
0,0
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A proposal has not yet been provided
$720 USD em 5 dias
0,0 (0 avaliações)
0,0
0,0
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Why do you want constant voltage for LED, is it specific requirement? normally it is constant current. I have worked in following areas for last 25 years • Pcb Artwork Layout: Mostly I do my pcb artwork layout in pads(Mentorgraphics). I am also familiar with Orcad ,Eagle,Altium. Right from my first job(back in 1984) I am doing my own artwork layout for my own designs.I started doing with inkpen and paper and upgraded myself to cad. • Electronic design: I have developed many T & M instruments .(Function generator, Linear power supply, Frequency counter, safety resistance meter. Etc) • In power electronics I have worked for almost 15 years. I have developed many SMPS up to 500W with PFC input. I have developed LED drivers from 1 W to 150 W using Power integration IC’s • I know C language though I am not expert on that but I can trouble shoot the programs and algorithms logically. • I have developed many product using Arduino
$888 USD em 10 dias
0,0 (0 avaliações)
0,0
0,0
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We are into solar products manufacturing and led product manufacturing. Provide the specifications like the led light wattage and current level. voltage,temperature and current variations can be taken care of.
$777 USD em 20 dias
0,0 (0 avaliações)
0,0
0,0
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I am an Electronics Engineering graduate which makes me a prime applicant for this project. I have designed and fabricated various projects over these years. I am completely capable and qualified for this project. Thank you for your consideration. Muneeb Abid.
$300 USD em 10 dias
0,0 (0 avaliações)
0,0
0,0

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Bandeira do(a) UNITED STATES
La Porte, United States
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Membro desde ago. 3, 2014

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