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This is an old revision of this page, as edited by 97.97.254.92 (talk) at 18:58, 25 August 2007 (removed statement calling ZIR a 'method of analysis.'). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

In electrical circuit theory, the Zero Input Response or ZIR is the behavior or response of a circuit with zero inputs. The ZIR results only from the initial state of the circuit and not from any external drive. The ZIR is also called the natural response, and the resonant frequencies of the ZIR are called the natural frequencies.

The total response of the circuit is the superposition of the ZIR and the ZSR, or Zero State Response.

See also

Zero State Response

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