Adjustable power supply / driver for the CoB LED array

Adjustable power supply / driver for the CoB LED array


- light source: BXRC-40E10K0-C-7X,or CLU058-1825C4.

(Alternative: BXRC-40E10K0-B-7X, BXRC-40E10K0-D-7X)

- power source / driver input: battery, 12 (or 16) pc of li-ion 18650 cells

- brightness adjustable from zero up to the highest possible value (0 -> 120W -> max ??)

- at max power driver must work for a few minutes, from time to time

- working time between charging up to an hour

- driver must have an emergency reaction to prevent overheating of array

Looking for someone who can:

- create a specification

- Design the circuit and PCB

- build and test the prototype

Please let me know about your previous experience in the design of an LED driver, DC-DC converters, and knowledge about lithium batteries (charging / discharging control).

The final budget will be agreed upon after specifying the requirements, feel free to ask more details.

Please provide a preliminary description of the (simplified) functionality and estimate its cost

I have some previous experience with this kind of light. The purpose of this project is to develop a new, third prototype, using the newly introduced CoB arrays on the market.

Skills: Circuit Design, Electrical Engineering, Electronics, PCB Layout

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About the Employer:
( 0 reviews ) Tallinn, Estonia

Project ID: #15153401

25 freelancers are bidding on average $594 for this job


Dear Sir, If you are looking for an highly skilled hardware engineer, I believe that I am the one who you're looking for. I am also an experienced PCB designer who has over 16 years design experience on complex PCB More

$555 USD in 10 days
(111 Reviews)

Hi I am an expert electronics engineer with more than 8 years of experience in this field. Please share the further details of main power input , battery support etc Relevant Skills and Experience I have completed mor More

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(200 Reviews)

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Hi, We have develop few Const Current LEd drivers before, we have also developed 5 Li -Ion battery management systems and have lot of experience with power electronics. Relevant Skills and Experience We have 3 Softwar More

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(30 Reviews)

Hi, I have experience in electronics development. I think your idea is to connect Li-Ion batteries in serial to get 68.1 V. This require balancing charging circuit. Relevant Skills and Experience Electronics Proposed More

$606 USD in 10 days
(11 Reviews)

Hello, To charge 12-16pc of 3400mAh battery fast you will need a charging IC for every 2 battery's The Led that you have will dissipate a lot of heat so a cooling area has to be calculted Relevant Skills and Experie More

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(22 Reviews)

Hello, This is Muntasir, please find the PDF link here for the proposal of the project. Thanks link - [url removed, login to view] Relevant Skills and Experience Elect More

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(8 Reviews)

Your Power 9800mAh-3.7V-Rechargeable Li-ion Battery-COB White LED-36.3v-4.2A(max)-use A6211-const current-3A-PWM-Dimmable LED Driver driven by Arduino UNO-PTH PCB-2layer-Prototype Making & Testing. Relevant Skills and More

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I could make you parts list and estimate of design time to make a prototype, for the bid price Stay tuned, I'm still working on this proposal.

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(21 Reviews)

i have designed this kind of project for 400W and KNX system also for 0 to 10V dimmable. please chat with me Relevant Skills and Experience Power Electronics Proposed Milestones $277 USD - one time

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(6 Reviews)

Hello. I worked with led drivers, the main its no overcurrent, overvoltage and overheating. For DC-DC it must works on high fequencyes. Li-Po have limited current discharge and min voltage per cell Relevant Skills and More

$500 USD in 10 days
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A proposal has not yet been provided

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