protecting a load - PSU design

Discussion in 'The Projects Forum' started by AIN, May 5, 2011.

  1. AIN

    Thread Starter New Member

    Apr 11, 2011
    I have designed a power supply to supply 24V to a load that will draw 5 amps.

    I have not considered the situation when the load shuts down (while it is connected to the power source).

    What do you suggest? Is the load going to be at risk? How would we protect it?

  2. DickCappels


    Aug 21, 2008
    What do you mean by "shut down"?

    If "shut down" means that it stops drawing current, and the power supply is a voltage source, then the load is not at risk.

    If, perchance, by "shut down" you mean "short out", then some kind of current limiting or power limiting on the part of the power supply is indicated.

    In any case, a good power supply design will usually at a minimum have at least a fuse or current limiting to protect the power supply and reduce the risk of fire.
    AIN likes this.