Thevenin Definition and 313 Threads

  1. V

    Finding Thevenin Equivalent at Terminals a-b

    Homework Statement Find the Thevenin equivalent at terminals a-b of the circuit below. http://img153.imageshack.us/img153/6116/chapter4problem40ef4.jpg Homework Equations v = i R, KCL, KVL, R_{TH}\,=\,\frac{V_{OC}}{I_{OC}}.The Attempt at a Solution To get R_{TH}, I removed the independent...
  2. V

    Engineering Solve Thevenin Resistance: R3 Explained

    Hey, For the attached question, the only part I do not understand is why the Thevenin Resistance is equal to R3. I thought it would be (R1 || R2) + R3 Can somebody please explain this? cheers!
  3. F

    Signal Source - (Thévenin, Norton)

    I am troubled by this question. The book for this new course seems to have different terminology then what I am accustom to. I'm stuck on this question, because I don't understand what it is asking. question) A particular signal source produces an output voltage of 30\,mV when loaded by a...
  4. E

    Calculating Thevenin Voltage in Circuit w/Load Resistor

    I was wondering,how do we calculate the thevenin resistance in a circuit with a load resistor?Do we remove the load?How do we calculate the voltage at the load terminals?
  5. E

    Calculating Thevenin Resistance - Load Removal & Voltage at Load Terminals

    I was wondering,how do we calculate the thevenin resistance in a circuit with a load resistor?Do we remove the load?How do we calculate the voltage Lat the load terminals.Like for example in this circuit: http://i75.photobucket.com/albums/i281/esmeco/superpositionandthevenin.jpg I'm a bit...
  6. E

    Superposition and Thevenin theorem

    In exercise i) I had to use the superposition to find the current through R2:removing the voltage source and sticking with the current source,this was my node equation: Eq: v1/1000 + v1/1000 + 0.001=0 Solving for I2 the equation was: V1-0/R2=I2 where I2=-5x10E-4 Removing the current...
  7. T

    How Can I Solve Thevenin Problem 1b?

    Thevenin Law Woudl anyone teach me how to do question 1b? Thanks!
  8. M

    Thevenin Equivalent: HW Problem Solution Check

    i have an attempted solution to a HW problem, and I want to know if it is right or wrong. Could you guys please help me out. I have attached the image as a pdf
  9. P

    Find Thevenin Voltage & Current Across R2: Tricks & Tips Included

    I'm trying to find the current and voltage across R2 using thenenin. http://img209.imageshack.us/img209/4606/thv15ph.png I've managed to find Rth, which is equal to (R1 + R4)||(R3 + R5). That comes out to about 2.9 ohms. I need help with finding the Vth (Vab) though...
  10. F

    Thevenin equivalent of a half-wave rectifier

    [SOLVED] Thevenin equivalent of a half-wave rectifier Hello folks, I'm trying to wrap my head around the process of reducing a half-wave rectifier (w/ filter) with an AC input into a simple Thevenin circuit with a DC equivalent voltage. My brain seems to be stuck in "but the input is not...
  11. A

    Help needed in a particular example of Thevenin case

    I tried every which way, but am getting a wrong answer for the Thevenin equivalent voltage in the following circuit. I tried Norton too, but got a different answer and neither of them matches the correct answer from the book. Please help me :redface: ... I'm too frustrated :( Here's the...
  12. cepheid

    Thevenin equivalent of a network

    Sorry for such a basic question, but I'm having trouble grasping the idea of why the Thevenin equivalent of a network (as seen from two terminals) almost always has a Norton equivalent in the form in which it has been defined. More specifically, I've been trying to work out from staring at the...
  13. O

    Solving Problems with Thevenin: Is My Teacher Wrong?

    Have some problems with thevenin (or my teacher is wrong, which i believe :)). http://www.fmf.nl/~wim/studie/cir1.png example from my book: Vi=15V, R1=6, R2=R3=3 Voc = Vi R2/(R1+R2) = 5 V (potential divider) R2//R3=1.5 Ohm R1+(R2//R3)=7.5 Ohm --> I = 15/7.5 = 2 A Cause R2 and...
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