power supply wiring Question

Discussion in 'General Electronics Chat' started by djh10, Oct 29, 2014.

  1. djh10

    Thread Starter New Member

    Oct 29, 2014
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    +Vs needs 7.5V, -Vs needs -2.5V, GND is ground, VDD needs 4.75/5V

    my question is where to the wires go into the power supply which configuration.

    Thanks
     
  2. MrChips

    Moderator

    Oct 2, 2009
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    What is that instrument? Show us the full front panel.
    You need a power supply to provide the three voltages specified.
     
  3. djh10

    Thread Starter New Member

    Oct 29, 2014
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    yeah its a triple output DC power supply
     
  4. djh10

    Thread Starter New Member

    Oct 29, 2014
    6
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    got it working, phew!!
     
  5. MrChips

    Moderator

    Oct 2, 2009
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    Assuming that the +25V and -25V suppies are independent, connect the two BLACK and one GREEN terminals together.

    Use the +6V supply adjusted for +5V.

    Adjust the +25V supply for 7.5V.

    Adjust the -25V supply for -2.5V.
     
  6. djh10

    Thread Starter New Member

    Oct 29, 2014
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    yeah thats what i did,only i put wire from GND into the COM port, results are as i wanted
     
  7. MikeML

    AAC Fanatic!

    Oct 2, 2009
    5,450
    1,066
    Be aware that the Green post is connected to the building's earth (electrical panel) ground through the third prong of the power supply's AC Line cord.

    You may or may not want to connect the circuit you are testing to the building's earth ground.
     
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