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Recent content by muniorbust

  1. M

    step down from 12v BEFORE multiple LM317 drivers?

    Thanks for the replies!! Looks like the "ideal 7.2v" got transcribed as 7.4v in the replies, but it matters not. So just to fill in the more obvious parts of ionlaser555's math... For the 8 drivers using 12v directly scenario, "At 11ma that's 0.0858 W of heat per regulator" so for the 8...
  2. M

    step down from 12v BEFORE multiple LM317 drivers?

    I have 8 LM317 laser drivers based on the rog8811 "It can be done" circuit. These will be powered in parallel by 12v DC power. Given the "ideal 7.2 voltage" suggested by rog8811, I'm wondering if it would be more efficient to have an initial upstream regulator to step down the 12v to 7.2v which...
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