Design a circuit for a flashlight

In Progress Posted 7 years ago Paid on delivery
In Progress Paid on delivery

This project is to design a circuit board to control a flashlight. The circuit board will be responsible for charging the lithium polymer battery and control the brightness of the LED. This circuit must incorporate a micro-USB port, lithium polymer battery protection, and allow for 3 different lighting intensities. The rough bounding box size for this circuit is 36 X 12.5 X 4 mm. A momentary switch will be used to cycle through the power modes. Thank you!

Electrical Engineering PCB Layout

Project ID: #12747404

About the project

26 proposals Remote project Active 7 years ago

26 freelancers are bidding on average $536 for this job

sagradoamicus

Hi Sir I am an expert electronics engineer with more than 8 years of experience. I have designed a number of circuits before.I have read the details and i am sure I can deliver it best. I would like to discuss in de More

$500 USD in 5 days
(237 Reviews)
7.9
MikroStar

hi, i am an electrical engineer. i have expertise in embedded system design and Matlab.i can help you with this project. Kindly reply back and let us discuss project further. regards

$1000 USD in 10 days
(68 Reviews)
7.6
RegulViktor

Hello. I'm an electrical engineer / PCB designer. You may check my qualification in the profile. Your project is interesting for me . We can discuss any details in the chat. Will do my best.

$250 USD in 7 days
(199 Reviews)
7.5
uetian09ee506

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

$500 USD in 5 days
(246 Reviews)
7.2
ahmad5857

Hi sir, We have read your project and we offer you our services to you at very low and affordable rates. Please discuss with us. We assure you the quality of service through various checks that are employed to av More

$250 USD in 10 days
(31 Reviews)
6.6
jartur

Hello I can help you with your project , but. I need more information about your project, deadline and other things. Maybe we can use some Microchip components to design this circuit. If you have any questions fe More

$250 USD in 15 days
(82 Reviews)
5.8
mzdesmag

Knowledge Pro innovative is dedicated to brings to Industries, Small-Business and people like you a good service, we provide complete solution on Engineering and Writing in the following areas: mathematics, matlab, au More

$250 USD in 5 days
(11 Reviews)
4.9
voyagerforth

Hi, I have been an electronics designer for many years with wide experience in design, layout fabrication and testing. Importantly I have done a few recent projects that include bright LEDs for illumination which als More

$555 USD in 10 days
(9 Reviews)
4.8
luisfilipeaguiar

HI, I like your project and I would like to help you. I can build and test a deliverable prototype my email to you. Kind regards, Filipe Aguiar

$555 USD in 10 days
(2 Reviews)
4.5
girisudhir

Dear Customer I have read your project specific requirement for design a circuit for flash light. Our Skills:- Embedded System:- Microcontrollers/Development Platforms ARM Cortex based microcontrollers, PIC 18 and More

$736 USD in 10 days
(3 Reviews)
3.9
GrigAnna

A proposal has not yet been provided

$333 USD in 10 days
(9 Reviews)
4.7
SantoshKGD

Hi, We have done similar projects for industries, please share the LED, battery and mechanical details. About us: We have 10 years of experience in Product development for Defense, Industrial projects. Micro-c More

$555 USD in 10 days
(1 Review)
1.1
PeteAvinstech

This sounds like it suits a microcontroller implementation with a buck/boost timer and temperature controlled charger. A few initial questions: - Does the USB port just supply power, or is data required (eg to chang More

$750 USD in 20 days
(0 Reviews)
4.4
rodrigotaboada

Hello. I have experience on power electronics, and electronics for medical devices. I have built three-phase inverters, DC-DC converters, Three-phase Retifiers, Audio systems and Respiratory flow Sensors, including PCB More

$666 USD in 10 days
(0 Reviews)
0.0
mateoar

PCB Design and Layout is my main skill (You can see my Portfolio), I've designed several projects like these. I work fast, I'm a perfectionist and I will give my 100% to the job until we're both happy with the result. More

$277 USD in 5 days
(0 Reviews)
0.0
abdodarwesh87

Ok i will do it I am an Electrical Engineer having specialization in Electronics and Control, teaching in Electrical Department at FAST National University Pakistan. I am also persuing my MS degree in Electrical Engine More

$555 USD in 10 days
(0 Reviews)
0.0
percykim

A proposal has not yet been provided

$555 USD in 10 days
(0 Reviews)
0.0
rogue0ee0ed

Hello, I'm a PCB designer with 6 years as a freelancer and 4 years experience in automotive design, handling schematic, mechanical restrictions, design for manufacturing and reliability according to IPC standards for l More

$722 USD in 25 days
(0 Reviews)
0.0
fadusystems

A proposal has not yet been provided

$388 USD in 20 days
(0 Reviews)
0.0