Integrated circuit fields canceller system
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United States of America Patent
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Nov 14, 2017
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N/A
app pub date -
Jan 12, 2016
filing date -
Jan 12, 2016
priority date (Note) -
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Abstract
The present disclosure relates to a circuit for suppressing unwanted magnetic interference. The circuit can have a transformer having a first coil, a first pair of input terminals, and a first pair of output terminals. The transformer can produce a first magnetic field. The circuit can also have a harmonic trap. The harmonic trap can have a second coil and a second pair of input terminals operably coupled to the first pair of input terminals. The harmonic trap can produce a second magnetic field opposing the first magnetic field. The harmonic trap can suppress electrical signals of at least one of the first input terminals and the first output terminals of the transformer at a resonant frequency of the harmonic trap. The harmonic trap can also suppress the first magnetic field in a far field.
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