EE302 Thevenin - Norton

# EE302 Thevenin - Norton - • In case there are dependent...

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Thevenin’s and Norton’s Equivalents Maximum Power Transfer Theorem

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Summary To find Thevenin’s or Norton’s equivalent: 1. Identify the load resistor (or the resistor across which the equivalent needs to be determined), and remove it. 2. Find the open circuit voltage, V oc , across the output terminals (for Thevenin’s), or the short circuit current, I sc (for Norton’s). Set V oc = V th , or I sc = I N 3. For Rth or RN (remember Rth = RN): Remove all independent sources – short voltage and open current sources Find equivalent resistance between output terminals

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Unformatted text preview: • In case there are dependent sources, use test voltage method. Some tips…. When only dependent sources are present: 1. Vth = 0V 2. Rth : negative Summary Using maximum power transfer theorem: 1. Usually you need to find thevenin’s equivalent because when RL = Rth, there is maximum power transfer. 2. Identify which resistor is the load. 3. Find the Thevenin’s equivalent for the rest of the circuit. 4. Maximum power Pmax = V th 2 /4R th...
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## This note was uploaded on 08/30/2010 for the course EE 302 taught by Professor Mccann during the Fall '06 term at University of Texas.

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EE302 Thevenin - Norton - • In case there are dependent...

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