Sinusoidal Circuit.

Discussion in 'Homework Help' started by bostonflunkie, Feb 21, 2005.

  1. bostonflunkie

    Thread Starter New Member

    Dec 22, 2004
    7
    0
    hi,
    i need help to draw this circuit, please...


    v(t)= 35 cos (150t+25deg)
    v(t)= 20 cos (150t+50deg)

    thanks.
     
  2. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    If you have access to Microsoft EXCEL. I recommend you use it to graph the functions? I have had good success with this approach.

    Let me know if you have access to MS EXCEL and I will be glad to help you further if you still need assistance.

    Good Luck
     
  3. bostonflunkie

    Thread Starter New Member

    Dec 22, 2004
    7
    0
    i can graph it on my calculator
    i need to layout functional circuit with real component on the bread board
    can you help?????
    thanks...
     
  4. dragan733

    Senior Member

    Dec 12, 2004
    152
    0
    Drew with mathcad
     
  5. bostonflunkie

    Thread Starter New Member

    Dec 22, 2004
    7
    0
    like i said i can draw it too, i need to build the circuit with real components...
     
  6. dragan733

    Senior Member

    Dec 12, 2004
    152
    0
    In the attachment are the calculations for the circuit in series: R, C and signal generator
    One mesures the voltage across the capacitor to get the equations:
    v(t)= 35 cos (150t+25deg)
    v(t)= 20 cos (150t+50deg)
     
  7. dragan733

    Senior Member

    Dec 12, 2004
    152
    0
    After I saw that there was a fault. It needs to choose a RL circuit to get the equations:
    v(t)= 35 cos (150t+25deg)
    v(t)= 20 cos (150t+50deg)

    When one choose RC circuit then the equations would be:
    v(t)= 35 cos (150t-25deg)
    v(t)= 20 cos (150t-50deg)

    Then again new calculations done in the attachment: rl.pdf
     
  8. bostonflunkie

    Thread Starter New Member

    Dec 22, 2004
    7
    0
    thans a lot it is exactly what i needed i am working on it and my values are much different than yours, i hvae 2.76 ohm resistor and j5.90 capacitor actually i made a mistake in my original posting equation the correct equation is
    v(t)= 35 cos (150t+25deg)
    i(t)= 25 cos (150t+50deg)
    and i am not suppose to use function generator only resistor, caps or inductor
    this is what circuit should look like.

    35V |-------------------/\/\/\/\--------------| |---------|
    (AC) | 25A |
    ------------------------------------------------------- |
    any help will be greatly appreciated....
     
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