LED Driver, Square wave [url removed, login to view] or 3mhz? - repost


I have a project that requires LEDs to blink on and off at 6 MHz.

I need detailed circuit schematics to do this.

Preferably low cost parts.

The LEDs have a Rise time of 30ns, fall time of 30ns, a "cut off frequency" of 12MHz,

voltage range of 1.4 to 1.6(max) volts.

I have looked on google and found nothing but one article talking about using one bank of LEDs to flash at [url removed, login to view], and a second to flash ON while the first is OFF to create 3MHz, and claims if the second bank of LEDs is exactly out of phase by one half then you will reach 6MHz.

I do not fully understand all of this but I can build a prototype from a schematic.

So I need plans that include a circuit diagram complete with values for all resistors, capacitors, ICs, etc.

Anything on the plan must be clearly labeled so I know what to buy and how to put it together.


* Adjustable speed from 4Hz (or slower) up to 6MHz (or as higher) in 1Hz resolution.

* LED or LCD screen to display Hz/MHz speed.

* On/Off control.

* 12v power source.

* Parts list (BOM) must be available to ship in small quantities to the USA. ([url removed, login to view], [url removed, login to view], [url removed, login to view])

* Total cost of parts should be $100 USD or less.

**NO PAYMENT or milestone will be released to the freelancer until a working prototype is made. (This is my 3rd listing of this project, 2 other freelancers have asked for money and not provided working plans.) I will create milestone(s) but not release until the work is verified by me when I create a prototype.

* Must be completed in less than 30 days. Project completion speed is NOT important. Quality is important.

* English is my only language so please understand and be able to write clear English. (Bids with poorly written English will be ignored to prevent communication errors.)

This should be a very easy thing for an Electrical Engineer.

This job may lead to other jobs.

Thank you for your time.

Please ask any questions.

Skills: Electrical Engineering, Electronics, Microcontroller

See more: driver 3mhz, led driver freelancers, write an article for electrical, working as freelancer engineer, work for freelancers engineer, what write available for in freelancer, what to do freelancer usa, wave electronics, usa jobs com, usa english freelancer, total freelancers on freelancer, square payment freelancer, square jobs, small freelancer jobs, rise of the freelancer, quality engineer jobs, quality control jobs, prototype power list, prototype phase, prototype freelancer, prototype diagram, project engineer jobs, power of the freelancer, power electronics freelancer, payment verified freelancer

Project ID: #4495878

19 freelancers are bidding on average $289 for this job


hi, i am an electrical engineer and an embedded system designer. i can help you with this project.

$611 USD in 20 days
(42 Reviews)

Dear Sir, We are Reserach and Development company whose working area are : -Digital Motor Control -Analog Design -Electronic Design -Power Electronics -PCB design -Embedded system -Matlab -Simulation of ha More

$210 USD in 3 days
(16 Reviews)

Hello check your PMB

$377 USD in 30 days
(7 Reviews)

Hi, See my message

$333 USD in 3 days
(1 Review)

Hi, I am an Electrical Engineer with firm knowledge of electronics. I can do this project for you. Please check private message. Regards..

$111 USD in 10 days
(2 Reviews)

Hi I can help you . Kindly read my private message

$300 USD in 15 days
(2 Reviews)

read pm sir :)

$244 USD in 3 days
(1 Review)

Hi. Please see PM. I'm an electrical engineer by education. I have 8 years working experience in embedded systems design.

$250 USD in 15 days
(0 Reviews)

I can do this very much easily.

$444 USD in 25 days
(0 Reviews)

Hello i am interested ...i want to understand your work deeply so give me more details. Thanks

$300 USD in 30 days
(0 Reviews)

Hi! I would like to work on this. kinldy see pm for detail Regards

$233 USD in 3 days
(0 Reviews)

Hi, I can do this job. It is frequency base so i have lot of experience for that.

$388 USD in 30 days
(0 Reviews)

I would like to work on this. Payment need be released only after the project is done. Need two weeks to finish the project and will require communication with you further, like what is sensitivity you need in this adj More

$200 USD in 3 days
(0 Reviews)

we will do this project please check personal message

$420 USD in 7 days
(0 Reviews)

Great Project

$350 USD in 7 days
(0 Reviews)

I can do it, please check PM

$275 USD in 20 days
(0 Reviews)

Sir, i would like to serve this project.

$155 USD in 4 days
(0 Reviews)

I am specilized in digital and analog circuit design

$155 USD in 3 days
(0 Reviews)

This project seems suitable for me I can design a circuit for u , based on certain Micro-controller to blink the led and show the frequency of blinking on LCD. and i can finished that on Proteus program (simulation pr More

$242 USD in 30 days
(0 Reviews)

Hi I can do it

$111 USD in 7 days
(0 Reviews)