ECE 201 Circuit Theory I1 Thevenin Equivalent for a circuit containing a dependent source.

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Presentation transcript:

ECE 201 Circuit Theory I1 Thevenin Equivalent for a circuit containing a dependent source

ECE 201 Circuit Theory I2 Determine the Thevenin voltage V Th + V Th - I 20 I

ECE 201 Circuit Theory I3 Determine the Thevenin resistance R Th 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 I4 Thevenin Resistance (continued) ITIT Apply voltage V T and determine the current I T. The Thevenin Resistance will be R Th = V T / I T.

ECE 201 Circuit Theory I5 Thevenin Resistance (continued) ITIT I 20 I

ECE 201 Circuit Theory I6 The Thevenin Equivalent Circuit