Inductive interface circuits having ripple-reduction loops

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12176862
APP PUB NO 20240146253A1
SERIAL NO

18051934

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Abstract

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An amplifier circuits inductive/magnetic sensor interface can include a main signal path including one or more amplifiers configured to receive an input signal and to produce an output signal based on the input signal. The input signal may include a square-wave demodulated signal having an associated modulation frequency and an undesired frequency component at twice the modulation frequency of the square-wave demodulated signal. The amplifier circuit may include a gain feedback loop configured to set a gain of the amplifier circuit. The amplifier circuit may include a ripple reduction feedback loop configured to receive an intermediate signal on the main signal path and extract the undesired frequency component of the intermediate signal to produce a filtered version of the intermediate signal and provide the filtered version of the intermediate signal to the main signal path.

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Patent Owner(s)

  • ALLEGRO MICROSYSTEMS, LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aguirre, Pablo Montevideo, UY 3 2
Romero, Hernán D Buenos Aires, AR 41 146

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