PowerShot G7 DC drive circuit from computer PSU

Discussion in 'The Projects Forum' started by smilem, Dec 10, 2008.

  1. smilem

    Thread Starter Senior Member

    Jul 23, 2008
    Hi, I'm trying to make Canon PowerShot 7G digital camera DC power brick so I don't have to buy one for 99$ out of computer PSU.

    My camera has Li-ion battery pack NB-2LH 7.4V 720mAh.
    It has 3 terminals plus and minus and third terminal don't know what it's for.

    Is it possible to drive the camera using 12V from PSU stabilized using LM317T?

    Do I need current stabilized circuit or voltage stabilized, or both?