# 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

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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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