Thévenin's theorem
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Thévenin's theorem [tā·vȯ′naz ‚thir·əm]

(electricity)

A theorem in network problems which allows calculation of the performance of a device from its terminal properties only: the theorem states that at any given frequency the current flowing in any impedance, connected to two terminals of a linear bilateral network containing generators of the same frequency, is equal to the current flowing in the same impedance when it is connected to a voltage generator whose generated voltage is the voltage at the terminals in question with the impedance removed, and whose series impedance is the impedance of the network looking back from the terminals into the network with all generators replaced by their internal impedances. Also known as Helmholtz's theorem.

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Thévenin's theorem (redirected from Thevenin equivalent)

Thévenin's theorem
(redirected from Thevenin equivalent)