DC Power Supply Sizing

Discussion in 'General Electronics Chat' started by admin, Jun 1, 2010.

  1. admin

    Thread Starter Member

    May 5, 2010
    Going have a buckpuck 700ma 24v, 2 24v 100ma fans for a total of 900ma would a 1amp 24v power supply be good? If yes would it be good with a pwm for the 2 fans? What im worried about is startup power surge, if the peak maybe to high at the start. I may also just use one fan 100ma and the 700ma driver, a 1amp would be plenty for that?
  2. oidium45

    Active Member

    Apr 24, 2010
    Generally yes, a 24v 1A supply should be efficient for 24v 900mA (0.9A).