I NEED HELPPPPPPP!! (ring modulator for AM)

Discussion in 'Homework Help' started by gogetta, Nov 29, 2014.

  1. gogetta

    Thread Starter New Member

    Nov 29, 2014
    5
    0
    I need the design in Multisim for attached problem....on paper is good enough that i can simulate in multisim..

    THANK Y'all
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,645
    2,344
    Hello,

    A ring-modulator is designed for Dual Sideband-Suppressed Carrier modulation.
    Make it work that way.
    Then see what happens when you give a DC offset on the modulation signal.

    Now show what you have done.

    Bertus
     
  3. gogetta

    Thread Starter New Member

    Nov 29, 2014
    5
    0
    I have come up with the following design so far in Multisim.....Can you please guide me about missing components ( diodes, summing amplifiers etc.)

    Thanks
     
  4. bertus

    Administrator

    Apr 5, 2008
    15,645
    2,344
    Hello,

    The circuit you show has nothing to do with the ring-modulator:

    [​IMG]

    Here is the original question:

    [​IMG]

    I do not see any diodes and balanced transformers in your circuit.

    Bertus
     
  5. gogetta

    Thread Starter New Member

    Nov 29, 2014
    5
    0
    Exactly thats where I am stuck and needed help......Can you break it down for me.....I am being asked to modify a ring modulator to transmit AM and not jujst DSB-SC.
     
  6. bertus

    Administrator

    Apr 5, 2008
    15,645
    2,344
    Hello,

    Did you see my remarks in post #2?

    Bertus
     
  7. gogetta

    Thread Starter New Member

    Nov 29, 2014
    5
    0
    yes I did..... so you are saying I can construct a simple ring modualtor (for DSB-SC) and give it DC offset on modulation signal??

    THANKS again
     
  8. AngelGdo

    New Member

    Nov 30, 2014
    2
    0
    Hey!
    We're in the same boat! Literally, I'm working on the same project!
     
  9. AngelGdo

    New Member

    Nov 30, 2014
    2
    0
    I think your design should look a little more like this:
    [​IMG]

    Let me know if you notice any issues with my design, or if you think of an oscillator that can be used to generate 2Vpp @ 10KHz
     
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