Mesh - Making sense of EE / 2nd edition Node and Mesh...

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Recall that our methods for analysis of simplest circuits, which can be reduced to parallel and series connections, were all based on KCL, KVL, and Ohm's law. Here we start working with circuits that do not reduce to series and parallel connections. The more advanced methods for circuit analysis are also based on the same foundation – KCL, KVL, and Ohm's law . The most powerful method, applicable to any circuit, is the node voltage equations. The big idea is simple: charges are neither created nor destroyed at any node thus the algebraic sum of currents leaving the node must equal zero. Each current is calculated from Ohm's law using the given resistances between nodes and the node voltages, which are either known (in very simple circuits) or unknown (leading to a set of simultaneous equations). The second method is mesh currents. It is also powerful and – in some circuits – helps to get answers faster than node voltages. The big idea is also simple: since energy is conserved, the algebraic sum of voltage drops around any closed loop must be zero. To
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This note was uploaded on 12/06/2010 for the course EECS 314 taught by Professor Ganago during the Spring '07 term at University of Michigan.

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Mesh - Making sense of EE / 2nd edition Node and Mesh...

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