Sugesstions for Driver for a traffic emergency flasher

[Dr.Skaramanga]

Hey !

I am planning at the moment to build a small traffic emergency light.

I m going to use 3-5 yellow/amber luxeon rebels and small carclo optics.
The design is clear so far.

But now, i am looking for a driver that is able to run theese LEDs from 3 cr123a li-ions.
The most important mode is of course the strobe mode.
also important is, that the driver doesnt draw any current if the light is turned of (that i can keep it in the car for a few years)

i found a few drivers at DX that are able to power more than 1 led , but they all dont give 1000mA in the strobe mode, but i want maximum brightness !

could you suggest me a simple driver that fits my demands ?
maybe ay taskled ? but they have soo many feature and i need only a fast strobe
price doesnt matter
or ist there a SIMPLE way to solder a circuit from transistors an capacitors (i am good at soldering but have only the basics about circuits and no ideo of microcontrollers)


thanks for your help !!
regards
Dr.

 

[Magic Matt]

If all you want is a strobe, I would think you could just use direct drive from the power supply and use a resistor to drop down the voltage. You don't really need it to be regulated for that sort of application.

In which case, possibly a basic 555 timer and a power transistor capable of more than 1amp at the voltage you're using.
http://www.instructables.com/id/Small-Strobe-Light/
I'm sure that could be modified!