Powerful Flashlight Driver -- 2

I'm looking for a bright electrical engineer that can design a powerful but efficient ~40,000lum flashlight driver/step-up convertor that can be controlled using PWM.

Input voltage: 4*18650 Battery 14.8v

Driver Design:

PWM control input (on/off, dim, strobe)

40mm-45mm diameter PCB

Spring in the center and ground ring around it for direct contact to power (see attached pictures)

Overheat, open load, and under-voltage protection.

LEDs PCB Design:

9 X Cree XLamp XHP70.2 LEDs with 6v

[login to view URL]

40mm-45mm diameter PCB

The PWM signals should run on the main power and ground on the flashlight to control the driver.

Good reference driver design:

[login to view URL]

Taidot: elektroniikka, sähkötekniikka, Piirisuunnittelu, Electronic Design, PCB Design and Layout

Näytä lisää: i want a ring write my name, I need to have 72 pictures taken and retouched for excellent result. I have 36 ring/earrings and they need a front and three qua, 1)I\ ve got 2 logos to make (see attachment), 2)I then have food supplements labels to build for those who have experience in d, xhp50 flashlight amazon, 90000 lumen flashlight amazon, 90000 lumen tactical zoom flashlight, xhp p50 most powerful flashlight review, 90,000 lumen flashlight review, xhp50 flashlight 90000 lumens, 90000 lumens xhp70.2 most powerful flashlight review, xhp p90 most powerful flashlight, House plan for 80ft X 30ft Plot size -- 2 I need some design work. house plan for 80ft 30ft plot according vaastu 80ft side is n, 1. I need a small change in the attached logo (an other freelancer did it 2 years ago, I only have the jpeg, but I will now dema, structural calculations for steel (2) \ i\ beams, 1.Please use the logo given in attachment for A-list Lotto 2. I need a mockup of 5 pages mainly:, logo 2+i have uploded, polaroid onestep 2 i type film, onestep 2 i-type camera, ubuntu which nvidia driver should i use, onestep 2 i type camera film

Tietoa työnantajasta:
( 45 arvostelua ) Canada, Canada

Projektin tunnus: #26862336

24 freelanceria on tarjonnut keskimäärin 505$ tähän työhön


Hi There, I am experienced electronics engineer having 15 years of R&D experience. I will design the flashing light as per your need. Please feel free to contact. Best Regards, Shahbaz.

$800 CAD 15 päivässä
(50 arvostelua)

Hi i'm engineer, VLC, Internet of things, machine learning, networking, lighting, power distribution, automation and control expert, i have experience working in electromechanical systems and control - design and build Lisää

$2000 CAD 30 päivässä
(11 arvostelua)

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 required Powerful Flashlight Driver and will deliver to u all Lisää

$333 CAD 5 päivässä
(28 arvostelua)

How are you today? I have read your description carefully and your project was really interesting to me. I am ready to start for your project now I have been working for more than 15 Year in the field of Electronic eng Lisää

$500 CAD 7 päivässä
(6 arvostelua)

Best PCB Design Expert at your doorstep! Dear Client, I couldn’t stop myself from bidding after going through the description as they are an exact match with my skillset and experience. I have experience in Powerful Lisää

$500 CAD 2 päivässä
(10 arvostelua)

We will do your work Hi my Professional Aim is: (Services then Solutions then Satisfactions) I hope you are [login to view URL] an experience in this field from last 5 years i am sure i can do it perfectly with in a time and bud Lisää

$250 CAD 7 päivässä
(44 arvostelua)

Hi, Thank you for posting. I have 30+ years of Electronics Engineering experience in both Analog and Digital Electronics. I have extensive experience creating schematics and printed circuit board designs. I defi Lisää

$500 CAD 7 päivässä
(4 arvostelua)

Hello_dear_project_owner;Thank_you_for_posting_that_project;You_can_read_about_me_below; About_your_project I_am_doing_schematic,PCB,SW\FW_design_every_day_(I_design_and_make_industrial_electronic_equipment_–_Ultrasoni Lisää

$250 CAD 7 päivässä
(24 arvostelua)

Dear Sir I am very interest in your job as an experienced engineer. For 10+ years, I have been working in this field and you can see my experience in my portfolios. I have a good experience to design many project simil Lisää

$500 CAD 7 päivässä
(3 arvostelua)
(20 arvostelua)

Greetings! i am the professional electrical engineer, rich experience in PCB design, circuit desing, simulation, manufacture. I can satisfy you. more in chat. thanks.

$500 CAD 7 päivässä
(9 arvostelua)

Dear Client, I have read and understood your requirements and could do it for you in the least time and utmost superior quality. I have experience in Powerful Flashlight Driver and could design it for you as per your r Lisää

$500 CAD 2 päivässä
(1 arvostelu)

Hi. I am an electronic engineer with rich experience in high power LED driver design. You will see my previous led driver working on my profile. I understand your needs and I am very confident on this project. Please l Lisää

$500 CAD 3 päivässä
(9 arvostelua)

Dear Client. I have just read your job description and your project is really interesting to me. I have many experiences working for 12+ years with Circuit design, PCB design, manufacturing functional prototyping with Lisää

$500 CAD 3 päivässä
(9 arvostelua)

General message: Dear Sir, Greetings from Turkey. I hope you are good. Let me introduce me. I'm Electronics Enginner who have 19 year experience. My experience is related to power electronics, hardware design, Lisää

$250 CAD 10 päivässä
(4 arvostelua)

Hope you are fine. I have understood the project description, i am 100% sure i can complete your task. I have made number of small size power PCB, my major expertise are in power electronics and i am fully confident Lisää

$250 CAD 2 päivässä
(2 arvostelua)

Hello, I am an electronics and telecommunication engineer and I have solid background in power electronics. So far I have designed many LED lightining projects. I have checked your pictures I can design one of them for Lisää

$330 CAD 7 päivässä
(3 arvostelua)

Hi, I'm Jerry Comia, licensed electronics engineer specialized in automation and product designs. As I've checked your details, I can definitely design your required PCB with the capability of PWM as I've project bef Lisää

$278 CAD 5 päivässä
(1 arvostelu)

Hi. I'd like to discuss more about your project. I have an experience in hardware design with all output files,for mass production like BOM, Gerber, Assembly, etc... Please contact me if you're interested in cooperati Lisää

$500 CAD 7 päivässä
(1 arvostelu)

I have 11+ yrs of experience in Electronics Manufacturing industry. I can design circuit as well as PCB required for your project. I have designed multiple Driver PCBs earlier and have good knowledge on it.

$650 CAD 7 päivässä
(0 arvostelua)