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Thévenin equivalent
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Thévenin's theorem
As originally stated in terms of DC resistive circuits only, Thévenin's theorem holds that:
- Any linear electrical network with voltage and current sources and only resistances can be replaced at terminals A-B by an equivalent voltage source Vth in series connection with an equivalent resistance Rth.
- This equivalent voltage Vth is the voltage obtained at terminals A-B of the network with terminals A-B open circuited.
- This equivalent resistance Rth is the resistance obtained at terminals A-B of the network with all its independent current sources open circuited and all its independent voltage sources short circuited.
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