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# extra3 - v s/R 1 v i 1-1/R v=0 when v R =v S Confusing Yep...

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+ - Rest of the circuit i B A v + v S R 1 Circuit A + v R - - i v R 1 + v R - v i + v S A v S v S - i v i + -v S -v S -v S -v S v s /R 1 A -v S - + - i v i i note: 1) passive sign convention 2) each plot corresponds to a specific subcircuit R 1 1 + v R R R R - v A A A - v A A A - 1/R v i 1 1/R But i A = -i, so flip source over and use negative voltage Now let’s consider the output of the combined voltage source and resistor (note that I’ve flipped the reference on v to adhere to passive sign convention within the subcircuit). i v R 1 + - Finally, let’s flip the reference direction on v to put the "the rest of the circuit" in terms of passive sign convention as viewed by the subcircuit. Thereby flipping the plot relative to the vertical axis.
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Unformatted text preview: v s /R 1 v i 1-1/R v=0 when v R =v S Confusing? Yep. Too many steps and lots of opportunity for mistakes. But you have to know how to manipulate plots. Starting from scratch, return to Circuit A at the top of this sheet, forgetting about the preceding plots. Determine what v leads to i=0, next find what i leads to v=0, finally plot these two points in the i-v plane (much easier). p3-8 revisited, repeat for Circuit B Rest of the circuit i B A v i S i R Circuit B R 2...
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## This note was uploaded on 07/17/2008 for the course EE 205 taught by Professor Coifman during the Spring '08 term at Ohio State.

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