Thevenin equivalent for a circuit containing a dependent source
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Thevenin Equivalent for a circuit containing a dependent source. Determine the Thevenin voltage V Th. + V Th -. I. 20 I. Determine the Thevenin resistance R Th.

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Determine the thevenin voltage v th
Determine the Thevenin voltage V sourceTh

+

VTh

-

I

20 I

ECE 201 Circuit Theory I


Determine the thevenin resistance r th
Determine the Thevenin resistance R sourceTh

De-activate the independent voltage source and excite the circuit from the a-b terminals with either a voltage or current source. Here, use a voltage source – then we will know the dependent voltage and dependent current.

ECE 201 Circuit Theory I


Thevenin resistance continued
Thevenin Resistance (continued) source

IT

Apply voltage VT and determine the current IT.

The Thevenin Resistance will be RTh = VT / IT.

ECE 201 Circuit Theory I


Thevenin resistance continued1
Thevenin Resistance (continued) source

IT

I

20 I

ECE 201 Circuit Theory I


The thevenin equivalent circuit
The Thevenin Equivalent Circuit source

ECE 201 Circuit Theory I


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