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Low voltage LED-driver for portable lighting and battery power supply

I need to make a project for 2 types of LED-drivers: 30W and 72W

Power supply is in both cases a battery pack eg. BOSCH 18V/2Ah or 18W/5Ah.

There is no AC power supply, nor battery charging function.

Both drivers need to have automatic signaling of low power in the battery and switch to an emergency function mode (low light output eg. 10%). Normal functioning should be possible at 3-5 output levels: 30/50/75/100% or similar and selectable using a momentary switch. The driver circuit witll be connected with an external BMS between battery and driver.

Driver-output is not fixed yet, it depends on the IC and topography, the target is efficiency >90%.

The circuit must be thermally protected and automaticaly dim light if overheat is detected.

Max development time is 30 days

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

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About the Employer:
( 0 reviews ) Jarocin, Poland

Project ID: #23549876

25 freelancers are bidding on average $1126 for this job

chandra2sekhar

Hello sir, Myself [login to view URL] Sekhar,[login to view URL], phd in Electronics from cdeec Innovations,India. We have 15+ years experience designing and developing electronic products. We have in house pcb fabrication facility for pr More

$1500 USD in 30 days
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7.7
Anthony989

Hello, I am Anthony from Sri lanka. I have 7 years of experience in the field of electronics. Currently I am working as a full time freelancer and I have state of the art electronic lab. Why you should h More

$1125 USD in 7 days
(59 Reviews)
6.5
shahbaz1980

Hi There, We will design, develop, test and ship the LED driver. We are a company offering customized development of electronic circuits. As part of deliverable we will hand over the design data. Please feel free to More

$4500 USD in 40 days
(52 Reviews)
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seshupower

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$1388 USD in 30 days
(61 Reviews)
6.7
amelectronics

Hello sir, I have experience in designing electronics circuits and can program all kinds of microcontrollers. You can discuss your project with me in chat and we can move on right away. Thank you.

$800 USD in 30 days
(40 Reviews)
6.6
Mestek

hello i am a computer engineer,i have masters in computer engineering,i have experience for more than 8 years in arduino and electronics,i can make to u the full design for ur portable lighting ,i can start immediate More

$750 USD in 7 days
(28 Reviews)
5.1
AndrijIN

Hi! I would like to offer my work on your project. According to your brief descriptions it looks to be possible to complete within given timeframe. Would the driver control a single LED? Can provide you: Schematics dia More

$900 USD in 28 days
(12 Reviews)
4.9
smarthardware

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$1125 USD in 7 days
(6 Reviews)
4.5
avigupta0061

Dear Client, With more than 5 years of experience in PCB Design and Circuit design of Led Drivers, I can ensure you quality work and before time delivery. Following is the protection that would be offered by me: 1. O More

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3.8
nhaodzo

To achieve such efficiency makes this project really interesting. Let's have a discussion and see what I can come up with!

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nishanthamahesh

Dear Sir, I am an experienced embedded system developer. I would like to provide my full effort for your project. Best Wishes

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TopWritingGuru

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hsh564cf84accd96

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Gerrard97

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(3 Reviews)
2.7
Samaji206

I am an Electrical Engineer with a masters degree I have high proficiency in Electrical Engineering, HVAC, LTE system model, Thermal system design, FPGA, Verilog / VHDL, Matlab/ Simulink, Microcontroller, Modeling, op More

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shaileshsannu

Hello I'm interested in your project. I'm Electronics and communication engineer. i have 3 yrs experience in PCB designing and embedded systems along with micro-controller programming. Discuss your project once i assur More

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1.9
doggar302

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Rogerfalcone

Hi,dear client. Thanks for taking your valuable time for reviewing my proposal. I am very interested in your project - 'Low voltage LED-driver for portable lighting and battery power supply'. Because I have been famili More

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(0 Reviews)
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engrsherry

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(0 Reviews)
0.0
YuJingXie860118

Hello. Nice to meet you. I am very interested in your project. I have rich experience for embedded engineering-PCB design, firmware development, prototyping and mass produnction. I am familiar with many CPUs such as PI More

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