Anybody help me?

olylyly

Newly Enlightened
Joined
Sep 8, 2018
Messages
1
Yes, I know, I'm a noob. I need a specific driver 23.5mm in diameter, with 2 switches, 1× 18650 input and [email protected] or [email protected] output, along with ALOT of modes and mode groups, and I haven't been able to find any driver that matches those exact specifications so I would like to know if I can build one.
 

DIWdiver

Flashlight Enthusiast
Joined
Jan 27, 2010
Messages
2,725
Location
Connecticut, USA
Hi, and welcome to the forum!

As professional engineer who has built a number of drivers, I can say that switches, modes and groups are easy, it's just how much software do you want to write.

As for boosting nearly 30W out of an 18650, that'll be a lot more of a challenge. With plenty of space, I could do it. But to fit in 23.5mm circle? I'd have to work on it a while to even decide if I could do it. I suspect the answer would turn out to be no.

On the optimistic side, Linear Technologies (recently purchased by Analog Devices) makes some pretty impressive modules with all of the hard part integrated. They are generally step down, not step up, but they might have one that could be coaxed into doing what you want. Unfortunately, they are neither cheap nor easy to assemble.

Any way you look at it, this is not a task for a noob.

By the way, do you realize this light would only run about 20 minutes per charge at full power?
 

archimedes

Flashaholic
Joined
Nov 12, 2010
Messages
15,780
Location
CONUS, top left
Hello and welcome to CPF

It looks like you are already getting some assistance but, OP, would you mind editing your title to something more specific ?

That helps CPF help you .... ;)
 
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