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The theorem results in maximum power transfer from the power source to the load, but not maximum efficiency of useful power out of total power consumed. If the load resistance is made larger than the source resistance, then efficiency increases (since a higher percentage of the source power is transferred to the load), but the magnitude of the ...
Like the maximum power theorem, Odum's statement of the maximum power principle relies on the notion of 'matching', such that high-quality energy maximizes power by matching and amplifying energy (1994, pp. 262, 541): "in surviving designs a matching of high-quality energy with larger amounts of low-quality energy is likely to occur" (1994, p ...
Maximum power can refer to: Maximum power transfer theorem in electronics; Maximum power principle in systems theory; Maximum power point tracking in energy extraction, most commonly photovoltaic solar systems
This page was last edited on 22 December 2010, at 16:26 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike License 4.0; additional terms may apply.
As a result of the maximum power theorem, devices transfer maximum power to a load when running at 50% electrical efficiency. This occurs when the load resistance (of the device in question) is equal to the internal Thevenin equivalent resistance of the power source. This is valid only for non-reactive source and load impedances.
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The red curve shows the power in the load, normalized relative to its maximum possible (which occurs when R L == R S). The black curve shows the power transfer efficiency η , which asymptotically approaches the maximum of 100% as the ratio R L / R S {\displaystyle R_{\mathrm {L} }/R_{\mathrm {S} }} increases.
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