thefreeman’s HDR Anduril 2 high efficiency drivers - update : FWxA boost driver

Well aside from size constraints, the magnetic switch requires additional hardware, and the firmware would have to be adapted for it (unless it simulate a simple on/off momentary switch)

Any chance you will have a functioning Fwaa driver (3v LED) available? I fried my v2.2 driver so have a dead Fwaa ti at the moment…

Well I have the original ones, both SOIC and QFN versions. I don’t have any of mine for selling at the moment.

Ok thanks. Please let me know if you make any to sell so I can fix my light. :slight_smile:

The efficiency looks great for the size!

Installed in the FW1A with an XHP50.3 4000K sliced and RGB aux LEDs :

3 Thanks

Very nicely done! :slight_smile:

Those tiny wires drive me nuts.

Thanks :blush:

They’re easier to work with than fat, springy and stranded silicone wires in my opinion. They virtually take no space, they’re rigid so you can bend them as you see fit and they stay put, no need to remove the insulation (it melts at high temp)

Is that coated magnet wire with different varnish colors?

Ah. Insulation that does not require stripping … I did not know. All I have encountered are the silicone and teflon types. Is what you have enamel, like the magnet wire I used a lifetime ago?

I guess something similar, though I have some magnet wire and the insulation is hard to melt, with these it takes 3~5s at 350°C : https://fr.farnell.com/roadrunner/rrw-a-105/fil-assortis-0-19mm-pqt-4/dp/5017245?CMP=e-email-sys-orderack-GLB

They’re sold specifically as solderable.

ok i see, not magnet wire but more like the solid wrap wire for prototyping boards, aka wirewrap boards.

That is such beautiful work.

That looks fantastic, nice work!

There are different classes of magnet wire. Class H is a real pain to remove the insulation.

The green and red stuff is a much lower temperature class and as such is much easier to remove the coating.

magnet wire is nice. i also like kynar wrap wire (most often use 30awg) for signals. and ptfe coated stranded if i need a bit more ampacity.

for stripping (enameled) magnet wire, i dislike burning it off. seems a bit unpredictable how much comes off. sure, you can remove excess and then trim the exposed conductor to length, but sometimes the part closest to the unaffected insulation is only partially removed.

imo best to remove it with abrasion. i use a tool specifically made for the job:

https://www.amazon.de/dp/B00202BULY/

knipex 15 11 120
Stripping Tweezers for coated wire

makes it easy to remove only the amount of insulation that you want.

you can get different blades for it, but so far i haven’t needed to replace the one that comes with it (for Ø 0.6mm)

interesting. i have probably never used magnet wire with low temp ‘solderable’ enamel.

That’s because it doesn’t exist.

And he wasn’t using magnet wire—it was wirewrap ~32AWG

That doesn’t look like wire wrap to me.

There are different types of polymers used for magnet wires, polyurethane being one that melt at lower temperature, it might also have a formula that melts better than normal polyurethane magnet wire.

Nice job as always!