circuit help

Discussion in 'Homework Help' started by bhuvanesh, Mar 16, 2015.

  1. bhuvanesh

    Thread Starter Member

    Aug 10, 2013
    268
    2
    i have attached my circuit and corresponding waveform,i don't even know what my attached circuit is called as.i have 5vrms ac source c, 3v dc source ,some k ohm resistor , all are connected in series.my output waveform look like its shifted down.what operation actually going on there and how the waveform shifted down.Thank you in advance
     
  2. Papabravo

    Expert

    Feb 24, 2006
    10,137
    1,786
    Well it can't be the AC source, and it can't be the resistor, so that leaves.....what exactly?
     
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  3. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,977
    744
    what happens if the battery is reversed?
     
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  4. bhuvanesh

    Thread Starter Member

    Aug 10, 2013
    268
    2
    its apparent form that waveform that dc battery making offset ,but i want answer how it does that. Particularly how one way of connecting dc source making offset up and another way of connecting dc source making offset down.Thank you
     
  5. Kermit2

    AAC Fanatic!

    Feb 5, 2010
    3,778
    932
    AC changes voltage with time. DC does not change over time. Consider what happens in your series circuit when the AC signal is at a time where it has zero Volts.
     
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  6. anhnha

    Active Member

    Apr 19, 2012
    773
    45
    With DC voltage source and Vo as in the picture:
    V0 = -3V + Vac
    If we reverse polarity of DC voltage source, then:
    Vo = 3V + Vac
     
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