Magnetic Infinitely Dimmable Boost supply

Okay, here is version 3.

Running from off, all the way up to 1.5A into the LED. The video is jumpy, but trust me, it is quite smooth in real life:

http://www.molalla.net/~leeper/hipswm2.avi


If you don't have the Codec:

[ QUOTE ]
Lux Luthor said:
Nice! /ubbthreads/images/graemlins/thumbsup.gif

Could you use it to dim the LED down infinitely? That might make installation easier in, say, a twist switch. I'd love to have something like that.

BTW, I needed a codec for the videos here, in case anyone can't see them. It's for .wmv3, and it works with higher versions of media player, even though it says it's for 6.4.

[/ QUOTE ]

Can you put up the schematic for the modification?

It would be slightly different for every type of converter board.

what size would it be how small coukld it be made its very cool btw

Cool! /ubbthreads/images/graemlins/thumbsup.gif

/ubbthreads/images/graemlins/grin.gif /ubbthreads/images/graemlins/grin.gif That looks really nice! Anything to do with those Hall switches (If memory serves) that you posted about the other day? /ubbthreads/images/graemlins/thumbsup.gif

Don,
yes it works with Hall sensors. /ubbthreads/images/graemlins/wink.gif Magnetic dimming LEDs

Bart,

Thanks! I missed that one! This is the thread I was referring to.

Dang Newbie! Too Cool! /ubbthreads/images/graemlins/grin.gif

Well duh! I missed that one! /ubbthreads/images/graemlins/sleepy.gif /ubbthreads/images/graemlins/grin.gif

I would love to see this circuit implemented in a light... /ubbthreads/images/graemlins/thinking.gif /ubbthreads/images/graemlins/cool.gif

I would love to *try* to impliment one! /ubbthreads/images/graemlins/tongue.gif /ubbthreads/images/graemlins/grin.gif

/ubbthreads/images/graemlins/drool.gif /ubbthreads/images/graemlins/wink.gif

Very Interesting
Would be an excellent Mod on Orb
/ubbthreads/images/graemlins/clap.gif

I hope to get a ring machined today, so I can put a small magnet in it, and slip it over a Mag 2AA for a infinitely dimmable Luxeon MagLite. The fella has been busy as of late, so it could be delayed. Once I get it, I'll show the video of the flashlight. Most of the rest is done already.

/ubbthreads/images/graemlins/bumpit.gif /ubbthreads/images/graemlins/popcorn.gif

Whoe
cannot believe i missed this and the previous threads. this is really nice. cannot wait to see the fully implemented one /ubbthreads/images/graemlins/drool.gif

very cool.. i can't see the video so don't know how the switch works... any just pictures?

When i came up with my version of infinite dim for the aaa light, i first came across the hall effect sensors, but couldn't figure out a nice way to move the magnet from a twistie action.. turns out i went another route. I should have a prototype built next week and i'll post about it.