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AC LED Driver Circuit
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Engineering & Manufacturing > Electrical

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  • Posted: Mon, Jul 09, 2012
  • Time Left: Closed
  • Location: Anywhere
  • Client prefers freelancers from:
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    You're still able to submit a proposal for this job, regardless of your location.
  • Start: Immediately
  • Budget: Not Sure
  • Fixed Price Job
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  • U.S. freelancers must have W9
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We are looking for a miniature power supply to drive a LED string in a series around 120V +/- (depending on output from supply) from an input of 90-130 VAC/60Hz at 350mA average current (90-260VAC even better). The LED is a standard DC led (around 3V forward voltage). The supply must fit into a small space: 1.15" x .3" x the shortest length possible.

The LED ouput does not need to be isolated from the mains but should be regulated in either a constant voltage or preferably a constant current configuration. The design should use commercial off-the-shelf components. Another possible configuration is to drive lower voltage strings (e.g 12-24VDC) in parallel from a constant voltage supply.

The ideal circuit will be dimmable from a standard phase-cut dimmer, but if this is not possible, a PWM input should be provided for an external signal. Energy star approval is not required, but the product will be eventually submitted to UL so components and board spacings should take this in...

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Job ID: 31826952
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 United States  |  
30+ years experience in all facets of electronics design from prototype to production. Fort Orion LLC provides electronics consulting services in...
2
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 0.0   |  Private   |  0 Jobs
Bid ID: 32446671  |  Submitted: Aug 2, 2012 17:08 ET 
Proposal SEALED

 United States  |  
Summary of Services: Processor based embedded systems design and development; Analog and digital electronics design; Power supply circuit design;...
1
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 0.0   |  Private   |  0 Jobs
Bid ID: 32345424  |  Submitted: Jul 30, 2012 07:17 ET 
Proposal SEALED

 Serbia  |  
There are no big problems there are only solutions which are not good enough. Higher chalenge means bigger pleasure to work on it. I will not take...
8
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 4.5   |  Private   |  18 Jobs
Bid ID: 31960741  |  Submitted: Jul 14, 2012 16:19 ET 
Proposal SEALED

 India  |  
I've worked in R&D department of product development companies interacting with teams located globally.I have over 13 yrs of PCB Layout...
Skills: PCB Design
1
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 4.4   |  Private   |  0 Jobs
Bid ID: 31957154  |  Submitted: Jul 14, 2012 12:12 ET 
Proposal SEALED

 Poland  |  
Electronics Engineer experienced in fields: PCB layout designing, 8-bit microcontrollers, DC/DC converters, LED lighting applications, Electrical...
1
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 0.0   |  Private   |  0 Jobs
Bid ID: 31935369  |  Submitted: Jul 13, 2012 10:44 ET 
Proposal SEALED

 India  |  
Krystal Technology is electronics R&D services company providing a broad spectrum of services such as 1) Technology Research, 2) New Product...
1
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 0.0   |  Private   |  0 Jobs
Bid ID: 31925523  |  Submitted: Jul 13, 2012 02:23 ET 
Proposal SEALED

 Pakistan  |  
Electrical Engineer with specialization in Electrical circuit and PCB designing. Expertise in Embedded system design mainly in Micro Controller...
1
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 0.0   |  Private   |  0 Jobs
Bid ID: 31917162  |  Submitted: Jul 12, 2012 16:58 ET 
Proposal SEALED

 Italy
Independent consultant in mechatronics and electronics. Specialized in the development of innovative and high performance products from the...
1
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 0.0   |  Private   |  0 Jobs
Bid ID: 31886121  |  Submitted: Jul 11, 2012 16:30 ET 
Proposal SEALED

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 South Africa  |  
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2
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 0.0   |  $0 Earnings   |  0 Jobs
Bid ID: 31882327  |  Submitted: Jul 11, 2012 14:01 ET 
Proposal SEALED

 United Kingdom  |  
Electronic engineer with over 30 years Analog, digital and micro controller experience. I have my own fully equipped Office and able to call on...
2
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 0.0   |  Private   |  0 Jobs
Bid ID: 31877783  |  Submitted: Jul 11, 2012 11:14 ET 
Proposal SEALED

 Pakistan  |  
Product development Company with team of expert engineers and software developers. Providing services in embedded system development, prototyping,...
2
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 0.0   |  $0 Earnings   |  0 Jobs
Bid ID: 31841426  |  Submitted: Jul 10, 2012 07:59 ET 
Proposal SEALED

 Turkey  |  
Dear Sir, I'm 15 year experienced Electronics Engineer whose working life have been taken on Research and Development areas. Full information on...
1
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 0.0   |  $0 Earnings   |  0 Jobs
Bid ID: 31830970  |  Submitted: Jul 10, 2012 00:26 ET 
Proposal SEALED

Nouman Aftab      
Nouman Aftab's identity has been verified.  Learn More
 Pakistan
I am an electrical engineer with specialization in control systems. I love programming,electronics,embedded systems and design,electro-mechanical...
1
  |  
 0.0   |  Private   |  0 Jobs
Bid ID: 31829617  |  Submitted: Jul 9, 2012 23:08 ET 
Proposal SEALED
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