ECE201_11_Jung

ECE201_11_Jung - ECE 201 Lecture 11 Source Transformations...

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Unformatted text preview: ECE 201 Lecture 11 Source Transformations Announcements Two-Terminal Networks • A two-terminal network is a network of circuit elements with only two terminals available for connection with other circuits • Examples of two-terminal networks Two-terminal network + + V-I Characteristic of Two-Terminal Networks The v-i characteristic of a two-terminal network is the voltage drop v across it expressed as a function of the current i through it ( using the passive sign convention ). Two-terminal network Two-terminal network To obtain the v-i characteristic by experiment: • Connect the two-terminal network to an independent current source with adjustable i • Measure v for different i • Plot the graph of v as a function of i • A resistor with resistance R • By Ohm’s Law, • v-i characteristic is a line through the origin V-I Characteristic of Resistors Slope R • An independent voltage source with voltage V s • v is fixed for any i : • v-i characteristic is a horizontal line V-I Characteristic of Independent Voltage Source + •...
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This note was uploaded on 04/04/2011 for the course ECE 201 taught by Professor Bobo during the Spring '09 term at Bradley.

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ECE201_11_Jung - ECE 201 Lecture 11 Source Transformations...

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