Pspice simulation

Discussion in 'Electronics Resources' started by Logan4el, Nov 5, 2013.

  1. Logan4el

    Logan4el Thread Starter New Member

    Joined:
    Nov 5, 2013
    2
    0
    Hello, I have set a signal with the VPWL. I am using voltmeter to see what kind of signal I have set up in VPWL.

    If I am adding a 10k resistor under VPWL source, it is changing my signal which comes from VPWL source.

    Could somebody explain me why it is happening? If I change any other parts they dont affect my VPWL source.

    [​IMG]

    Uploaded with ImageShack.us
     
    #1
  2. MikeML

    MikeML Senior Member

    Joined:
    Oct 2, 2009
    4,505
    809
    Ohms law and Kirchoff. E=IR. The current that flows in the 10K resistor(pot) subtracts from the source voltage.

    Hint, it is called an IR drop.
     
    #2
  3. Logan4el

    Logan4el Thread Starter New Member

    Joined:
    Nov 5, 2013
    2
    0
    Just moved a ground to the correct place and everything is fine now.
     
    #3
Loading...
Similar Threads
  1. HHJJ
    Replies:
    3
    Views:
    3,182
  2. Wagner
    Replies:
    1
    Views:
    1,080
  3. Wagner
    Replies:
    4
    Views:
    1,269