What is the dc component in this case?

Discussion in 'General Electronics Chat' started by Bonjo Amy Sefala, Jun 18, 2015.

  1. Bonjo Amy Sefala

    Thread Starter New Member

    Jun 18, 2015
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    May I ask....what is the dc component in this case?
     
  2. Lestraveled

    Well-Known Member

    May 19, 2014
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    If it is a pure sine wave and is symmetric around zero volts, then the DC component would be zero.
     
  3. mxg2579

    New Member

    Jun 10, 2015
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    7

    Since the question states that it has a vertical offset of 1.5V, that would be the DC component. Unless I am confusing that with something else.
     
  4. ErnieM

    AAC Fanatic!

    Apr 24, 2011
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    How does the offset work in that scope? On mine, a 1.5V offfset moves the trace UP.

    Assuming zero volts is mid screen we had to add 1.5 to the wave to move it up and center it, so the wave has a negative 1.5V offset.

    And welcome to the forums! (I wanted to say "circus" as I expect everyone who wanders thru this post today to have a different answer.)
     
    Bonjo Amy Sefala and #12 like this.
  5. #12

    Expert

    Nov 30, 2010
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    I'm with Ernie. The problem did not say the scope had a negative 1.5V vertical offset, so it must be that the scope has a positive 1.5V offset dialed in with its adjustments.
     
  6. Bonjo Amy Sefala

    Thread Starter New Member

    Jun 18, 2015
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    So that the dc component is -1.5V?
     
  7. KLillie

    Member

    May 31, 2014
    126
    14
    Yes
     
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