2 circuits sharing same resistor? possible with diodes?

Discussion in 'General Electronics Chat' started by RogueRose, Jun 5, 2015.

  1. RogueRose

    Thread Starter Member

    Oct 10, 2014
    I originally thought that this was not possible but after reading some things I'm wondering if there is a way to do this.

    I have 2 devices that pass through a small external circuit of resistors that selects the voltage for the device (for a power supply) . There is a switch that selects preset resistor loads and also a potentiometer. Both devices are identical and require the same resistance settings. Currently I have 1 circuits for each device. Is it possible to put a diode (or multiple) somewhere on each device to allow for the current not to flow from one device to the other?
  2. WBahn


    Mar 31, 2012
    Possibly. You really need to post some kind of a schematic to give us a decent idea of what you are dealing with.
    planeguy67 likes this.