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Transformers are sometimes used to match the impedances of circuits with different impedances.

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Posted by waqasahmad

For details:

en.wikipedia.org/wiki/Impedance_mismatch

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Posted by sagitraz

When maximum power load can be transfered in a network source is called impedance matching.

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Posted by HamidAliKhan

plz visit the following link

http://www.freepatentsonline.com/5661438.html

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Posted by Hash007

Impedance Matching is nothing but in a network source to load maximum power can be transfered it is called impedance matching.

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Posted by curtis