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lecture12 - N N oc I R v = N oc N I v R = N sc I i = sc N i...

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1 Norton’s Theorem Norton Equivalent Circuit Any two-terminal linear network, composed of voltage sources, current sources, and resistors , can be replaced by an equivalent two-terminal network consisting of an independent current source in parallel with a resistor. Network of Sources and Resistors Arbitrary Network Arbitrary Network . . . . a a b b + v - + v - i i Network of Sources and Resistors . . a b I N R N Norton equivalent circuit Finding I N and R N (I) We can derive the Norton equivalent circuit from a Thevenin equivalent circuit simply by making a source transformation V Th I N R Th R N Th Th N Th N R V I R R = = Finding I N and R N (II) I N R N a b o o + v oc - I N R N a b o o i sc . . a b Network of Sources and Resistors + v oc - . . a b i sc Network of Sources and Resistors
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Unformatted text preview: N N oc I R v = N oc N I v R = N sc I i = sc N i I = 2 Summary To determine the Thevenin or Norton equivalent circuits, we need to calculate any two of the following three: v oc i sc R eq sc oc N Th sc N oc Th i v R R i I v V = = = = Example Determine the Thevenin and Norton equivalent circuits at terminals a-b of the following circuit. If a load with R L =10 is connected across terminals, whats the power delivered to the load? What is the power if R L =22.5 and R L =50 ?...
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lecture12 - N N oc I R v = N oc N I v R = N sc I i = sc N i...

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