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  1. #1
    mtbr member
    Join Date
    Mar 2011

    Flasher Circuit For A White Cree XP-G

    Need help with 555 based flasher circuit for a white Cree XP-G. I would like to use this circuit to flash a white Cree XP-G with two AA batteries.

    The two AA batteries don't provide enough voltage to light the XP-G so I was hoping I could use a MicroPuck to drive the XP-G. If it is possible to use a MicroPuck in this application, I am not sure where to connect it. Should it be connected between the 2.5 vdc source and the P channel? Like this:

    Or should it be connected between the P channel and the LED? Like this:

    Any help would be greatly appreciated.

    Attached Thumbnails Attached Thumbnails Flasher Circuit For A White Cree XP-G-555-timer-circuit.jpg  

    Flasher Circuit For A White Cree XP-G-555-timer-circuit-micropuck_1.jpg  

    Flasher Circuit For A White Cree XP-G-555-timer-circuit-micropuck_2.jpg  

    Last edited by ray6520659; 04-13-2011 at 09:38 AM. Reason: Pictures disappeared from original post.

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