What is the purpose of ground in this supply?

Discussion in 'General Electronics Chat' started by spinnaker, Oct 22, 2012.

  1. spinnaker

    Thread Starter AAC Fanatic!

    Oct 29, 2009
  2. BSomer


    Dec 28, 2011
    The ground, green colored jack, is a direct tie to earth ground. Generally this is not used in circuits, you would just use the positive and negative terminals.

    For a +/- supply the positive of output 2 and negative of output 1 are tied together and this becomes your reference point. The negative of output 2 is the negative voltage and the positive of output 1 is the positive voltage.
    spinnaker likes this.
  3. Stuntman

    Active Member

    Mar 28, 2011
    I have this supply. Works great for GP stuff.

    Only problem I have had is when using it for VHF circuits... Not a surprise as it is not rated for such applications.

    As mentioned by BSomer, the two supplies are isolated. The green lead allows you reference either or both rails to earth ground.

    Realize the supply also has provisions to internally series or parallel the two rails using the center rotary switch.
  4. crutschow


    Mar 14, 2008
    What has it being a VHF circuit have to do with the power supply? :confused: If the VHF circuit is properly decoupled, the design of the power supply should have little effect on it's operation. I've never seen a power supply specifically rated for VHF type circuits.