Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Quick question on AC

  1. May 4, 2009 #1
    So if my input is an alternating voltage source, some sort of function generator plugged into the wall... will it oscillate around ground or will it oscillate above ground? Hope this question makes sense.
     
  2. jcsd
  3. May 4, 2009 #2

    berkeman

    User Avatar

    Staff: Mentor

    Depends on the source. Most lab function generators let you specify Amplitude, Frequency, and DC Offset.
     
  4. May 4, 2009 #3
    It's very likely that the signal generator will be grounded, if so then the signal will oscillate above and below the ground.
     
  5. May 5, 2009 #4

    vk6kro

    User Avatar
    Science Advisor

    A signal generator will produce sine and square waves that are centered at ground and vary equally on either side of ground.

    A function generator can do this too, but it can also generate logic pulses that vary from zero volts (ground) to some figure like plus 5 volts, which you can preset.
    These pulses have the right voltage to drive logic circuitry for testing purposes.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Quick question on AC
  1. Question about ac to dc (Replies: 12)

  2. Ac/dc question (Replies: 3)

  3. Grounding in AC question (Replies: 19)

Loading...