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Thévenin's theorem
Sign in to saveAlso known as Thevenin's theorem, Helmholtz–Thévenin theorem
theorem in electrical circuit analysis
Wikidata facts
- Part of
- list of theorems
- Named after
- Léon Charles Thévenin
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- Commons category
- Thévenin's theorem
- maintained by WikiProject
- WikiProject Mathematics
- discoverer or inventor
- Hermann von Helmholtz
- studied by
- physics
via Wikidata · CC0
~16 min read
Encyclopedic overview
Fig. 1. Any black box containing only resistances, voltage sources and current sources, can be replaced by a Thévenin equivalent circuit consisting of an equivalent voltage source in series connection with an equivalent resistance. As originally stated in terms of direct-current resistive circuits only, Thévenin's theorem states that "Any linear electrical network containing only voltage sources, current sources and resistances can be replaced at terminals A–B by an equivalent combination of a voltage source Vth in a series connection with a resistance Rth."
The equivalent voltage Vth is the voltage obtained at terminals A–B of the network with terminals A–B open circuited.
Excerpted from Wikipedia’s “Thévenin's theorem” article, available under the CC BY-SA 4.0 licence.