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RLC Steady State Circuit

  • Engineering
  • Thread starter girrafeblue22
  • Start date
  • #1
I have been given the task of building an RLC circuit that is driven at 10kHz, has an output amplitude of 1/sqrt(2) and is 45 degrees out of phase from the input voltage.

I am not really even sure where to get started.

Any tips will be greatly appreciated.
 

Answers and Replies

  • #2
1,506
17
The first point I would note is that 45 degrees out of phase means that the value of
(Xl - Xc) or (Xc - Xl) must equal the value of R.
This means that at your chosen frequency (10kHz) Xl must = 2 x Xc This would be 45 leading
OR Xc must = 2 x Xl this would be 45 lagging
This means that the supply voltage Vs = Vr x √2 (or Vs = Vl x √2,,,, or Vs = Vc x √2 )
Hope this helps
PS when I say leading or lagging I mean supply volts with reference to the current (or Vr)
 
Last edited:

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