Closed-loop transfer function: Difference between revisions

Revision as of 09:40, 9 December 2011

Revision as of 19:14, 20 March 2012

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A '''closed-loop transfer function''' in [[control theory]] is a mathematical expression ([[algorithm]]) describing the net result of the effects of a closed ([[feedback]]) [[loop (telecommunication)|loop]] on the input [[signal (information theory)|signal]] to the circuits enclosed by the loop.

== Overview ==

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An example of a closed-loop transfer function is shown below:

The summing node and the ''G''(''s'') and ''H''(''s'') blocks can all be combined into one block, which would have the following transfer function:

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Let's define an intermediate signal Z shown as follows:

[[Image:Closed_Loop_Block_DerivClosed Loop Block Deriv.png]]

Using this figure we can write

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[[Category:Control theory]]

[[Category:Cybernetics]]

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