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Thévenin's theorem and its dual, Norton's theorem, are widely used to make circuit analysis simpler and to study a circuit's initial-condition and steady-state response. [ 8 ] [ 9 ] Thévenin's theorem can be used to convert any circuit's sources and impedances to a Thévenin equivalent ; use of the theorem may in some cases be more convenient ...
In general, the concept of source transformation is an application of Thévenin's theorem to a current source, or Norton's theorem to a voltage source. However, this means that source transformation is bound by the same conditions as Thevenin's theorem and Norton's theorem; namely that the load behaves linearly, and does not contain dependent ...
Edward Lawry Norton. In direct-current circuit theory, Norton's theorem, also called the Mayer–Norton theorem, is a simplification that can be applied to networks made of linear time-invariant resistances, voltage sources, and current sources. At a pair of terminals of the network, it can be replaced by a current source and a single resistor ...
Norton's theorem states that any two-terminal linear network can be reduced to an ideal current generator and a parallel impedance. Thévenin's theorem states that any two-terminal linear network can be reduced to an ideal voltage generator plus a series impedance.
Mathematically, current and voltage sources can be converted to each other using Thévenin's theorem and Norton's theorem. In the case of a nonlinear device , such as a transistor , the term "output impedance" usually refers to the effect upon a small-amplitude signal, and will vary with the bias point of the transistor, that is, with the ...
A single impedance has two terminals to connect to the outside world, hence can be described as a 2-terminal, or a one-port, network.Despite the simple description, there is no limit to the number of meshes, [note 6] and hence complexity and number of elements, that the impedance network may have.
As a result of studying Kirchhoff's circuit laws and Ohm's law, he developed his famous theorem, Thévenin's theorem, [1] which made it possible to calculate currents in more complex electrical circuits and allowing people to reduce complex circuits into simpler circuits called Thévenin's equivalent circuits.
Edward Lawry Norton (July 28, 1898 – January 28, 1983) was an accomplished engineer and scientist. He worked at Bell Labs and is known for Norton's theorem . His areas of active research included network theory, acoustical systems, electromagnetic apparatus, and data transmission.