Looking for a driver EDIT: updated

[H-Man]

I need a driver that can output around 3amps to 3 XML leds wired in series. Power source will be 3S3P lico battery for a linear driver, if a boost driver comes into the mix I might do a 4SxP setup.
Modes don't matter if it has a micro controller on board that can be flashed, but otherwise I want a low medium and high

 

[hellokitty[hk]]

Re: Looking for a driver

Take a look at this intl-outdoor one:
http://www.intl-outdoor.com/boostbuck-318v-triple-xml-circuit-board-p-542.html
(I hope link will be okay)
PWM is a relatively low 1000hz

I think KD may also have stuff like this.

 

[H-Man]

Re: Looking for a driver

I might use that with a potentiometer added to allow me to adjust the current, but 1000 hz is kinda undesirable.

 

[yazovyet]

Re: Looking for a driver

If you're useing 3 liions you should be able to use either of the following if you wanted. They both run on 7135 based drivers (can easily get 3 mode at 5kHz pwm).

3 drivers in parallel (2 slaved), diagram on post 15
http://www.candlepowerforums.com/vb...-The-Everyman-s-Triple-XM-L-3-mode-NiMH-Optic

1 driver with some leds run from the batteries, end of post 1
http://www.candlepowerforums.com/vb...-Yard-Sweeper-Mag-2C-3-mode-with-3x-IMR-22430

I'm sure there are other single driver options that work off 11 or 14 volts but I'm just not familliar with them and figured I'd add what I knew.

 

[arek98]

Re: Looking for a driver

For 3 Li-Ions you can use lFlex, for 3,4 or 5 b3Flex.

 

[H-Man]

Re: Looking for a driver

If you're useing 3 liions you should be able to use either of the following if you wanted. They both run on 7135 based drivers (can easily get 3 mode at 5kHz pwm).

3 drivers in parallel (2 slaved), diagram on post 15
http://www.candlepowerforums.com/vb...-The-Everyman-s-Triple-XM-L-3-mode-NiMH-Optic

1 driver with some leds run from the batteries, end of post 1
http://www.candlepowerforums.com/vb...-Yard-Sweeper-Mag-2C-3-mode-with-3x-IMR-22430

I'm sure there are other single driver options that work off 11 or 14 volts but I'm just not familliar with them and figured I'd add what I knew.

I went with the single AMC7135 driver. It has an ATtiny13 micro controller, so it can have the modes changed even more then what the stars on the pcb allow.