| 摘要 |
First and second complementary voltage signals are operatively coupled across a series circuit comprising first and second sense resistors and a circuit element therebetween. An output signal responsive to the self-impedance of the circuit element is generated responsive at least one of a voltage across the first sense resistor and a voltage across the second sense resistor, and at least one of the first and second complementary voltage signals is controlled responsive to the output signal so as to provide for attenuating at least one noise signal having a frequency that is substantially different from a frequency of the first and second complementary voltage signals.
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