Thévenin's theorem for linear electrical networks to simplify the analysis of complex electrical circuits.
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To find the Thevenin equivalent for the circuit containing dependent sources shown in the figure1 [closed]
To find the Thevenin equivalent for the circuit containing dependent sources shown in the figure1.
STEP 1 : To calculate the Thevenin voltage, \$V_{Th}\$
\$i=\frac{5-3v}{2000}\$
Thevenin voltage, ...
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3answers
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Thevenin Equivalent Circuit
QUESTION:
I'm having a hard time figuring up what the Thevenin Voltage is along with Thevenin Resistance for this circuit below. I'm also confused on what I'm suppose to do when there is a current ...
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1answer
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Calculate current in branch using Thévenin's theorem
E1 = 20 V
E2 = 5 V
R1 = 10 Ω
R2 = 20 Ω
R3 = 10 Ω
R4 = 10 Ω
R5 = 5 Ω
Calculate Ix.
It's obvious that the Thévenin's theorem should have been used, but the implementation is a bit ...
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2answers
87 views
Finding Thevenin equivalent
I'm looking to find the Thevenin equivalent of two parallel voltage sources where each source has some internal resistance as well for simulation in Matlab. I don't know where and how exactly to put a ...
3
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2answers
151 views
How to find Thevenin resistance?
I've got a question, and I just keep getting myself confused when I try to solve it.
I've attached the picture of the circuit (sorry it's so dodgy, paint is hard! :P)
And the question is:
replace ...
5
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1answer
158 views
What is the Thévenin equivalent of the mains power supply?
Thévenin's theorem says that any voltage source can be modeled as an ideal source in series with some complex impedance. How does one quantify this model for AC mains supplies? What parameters are ...
1
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3answers
147 views
Parallel resistor not affecting rest of the circuit
I have been asked the following question:
The resistance, r, is not known in fig(1a), why does its value not affect potential at b?
By Thévenin's theorem, any arbitrary voltage source can be ...
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1answer
200 views
Thevenin equivalent with dependent and independent generators
Considering the following circuit
When calculating the Thevenin equivalent when I calculate the Thevenin resistance value Rth
Why do I have to consider the controlled voltage generator?
And ...
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2answers
179 views
What is the equivalent thevenin resistance of a digital output port on an Arduino Uno R3
How would I determine the thevenin equivalent resistance?
3
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2answers
602 views
Finding a diode's operation point (Q-point)
I'm struggling with what should be a fairly simple excercise, I have to determine the diode's Q-point using the load line method given the diode's characteristic curve, however if you look at the ...
3
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4answers
411 views
Impedance matching confusion
A long time ago I understood this, but right now it totally escapes me.
Taking an audio amplifier for example. Say it drives a speaker which is 8 ohms at all frequencies. Taking the amplifier as a ...
4
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1answer
521 views
Thevenin equivalent circuit with current and voltage source
I have the circuit below and I have to calculate complex current i1using thevenin equivalent circuit method:
I tried to follow the rules and open the terminal ...
2
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1answer
124 views
Total resistance of circuit
Hi I'm struggling a bit with obtaining the total resistance of this circuit, I know it's an easy one I'm just a bit confused on how the resistors are merged using parallel and series operations, ...
4
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1answer
824 views
Questions about Thevenin's Theorem
I am reading up on Thevenin's Theorem and this has prompted a few questions that I hope somebody will be able to answer.
This is the tutorial I am reading.
The circuit below is then given as an ...
2
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2answers
1k views
Are I/O pin internal resistances equal to the Thevenin resistance?
I'm trying to find the Thevenin resistance of an I/O pin for the ATmega644. I see on the datasheet that there is a 20-50 kohm range of internal pull-up resistance. So with that, I can create a ...
2
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1answer
988 views
How do I decide which method to use in circuit analysis?
I'm an Electrical Engineering student, and circuit analysis can be really confusing to me. I sort of understand the concepts of solving circuits, but I don't really know when to use which method. Are ...
2
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1answer
242 views
Where does the power dissipation go in this Thévenin equivalent?
The circuit below contains an AC current source and an ideal transformer along with some passive elements. I marked the points A and B, because I'm trying to find the power dissipated in the terminal ...
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1answer
243 views
Calculating symbolic input impedance of Multiple Feedback Low-Pass filters
I am trying to design a filter and I am Following this guide. The second step is determining the input impedance of the circuit.
The filter is a MFB Low-Pass type:
And its transfer function in ...
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2answers
550 views
Calculating Thevenin equivalent circuit with series current source
Wikipedia writes this about calculating the output current \$I_{AB}\$ when finding the Thevenin equivalent:
2a. Replace voltage sources with short circuits, and current sources with open circuits.
...
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2answers
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computing Impedance related with Voltage Vx
I have a circuit like:
How do you get Thevenin ( \$V_x = I_x * R\$) circuit?
I have these formulas, but I am a little stucked...
\$\ I_0 + Ix = (\frac{V\pi}{r\pi}) + gmV\pi \$ ...
3
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1answer
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How to find the Thévenin voltage?
How do I find the Thévenin voltage in this diagram?
In parallel the voltage remains the same, so should it be 10 volts across AB?
I am given that since \$R_3\$ and \$R_4\$ are not connected on one ...
