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Help with circuit

  1. Jan 25, 2010 #1
    Hi

    A year ago I took an Electronics course using https://www.amazon.com/Electronic-D...sr_1_1?ie=UTF8&s=books&qid=1264470203&sr=8-1" book.

    So few days ago I realized that I didn't remember anything about the subject and then started studying again from the ground up and chose the Sedra/Smith Microelectronics book for the task. So in this book I stumbled upon a different way of modeling the circuits, like this one:

    http://img42.imageshack.us/img42/5637/diodecircuit.png

    My question is: How do I rewrite this kind of circuit in a closed loop manner? The other book that I mentioned usually provided the closed loop circuit, so it was a trivial task to analyze them. But this one I have no idea, and the introductory chapter doesn't mention anything about it...

    Thanks in advance.
     
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Jan 25, 2010 #2

    vk6kro

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    Science Advisor

    This sort of thing?

    http://dl.dropbox.com/u/4222062/diode%20problem.PNG [Broken]
     
    Last edited by a moderator: May 4, 2017
  4. Jan 25, 2010 #3
    So you're saying that I must plug all the voltage sources of my circuit to that GND? And how about the other GND in that picture? the Potential Difference will be calculated between the point after the 10k resistor and the the junction between the 2 voltage sources and the other diode?
     
  5. Jan 25, 2010 #4

    vk6kro

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    Science Advisor

    Yes.
    The other terminal of voltage sources shown like this is earthed, and all earths can be considered joined together.

    The diagram in the book actually shows the components laid out according to the potentials at various points in the circuit, relative to earth.

    You may get a surprise when you work out what V is.
     
  6. Jan 25, 2010 #5
    Excellent!

    Thank you so much.
     
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