Balun
Electrical device / From Wikipedia, the free encyclopedia
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A balun /ˈbælʌn/ (from "balanced to unbalanced", originally, but now derived from "balancing unit")[1] is an electrical device that allows balanced and unbalanced lines to be interfaced without disturbing the impedance arrangement of either line.[2] A balun can take many forms and may include devices that also transform impedances but need not do so. Sometimes, in the case of transformer baluns, they use magnetic coupling but need not do so. Common-mode chokes are also used as baluns and work by eliminating, rather than rejecting, common mode signals.
For other uses, see Balun (disambiguation).
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