HIGH PERFORMANCE INDUCTIVE SENSING ALL DIGITAL PHASE LOCKED LOOP

Front-end circuits that combine inductive and capacitive sensing are described. In one embodiment, an apparatus includes a plurality of inductive elements, an inductive measurement circuit, and a frequency divider circuit. The inductive measurement circuit is to output a first signal with a first fr...

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Bibliographic Details
Main Authors PIMENTA, Matheus, Walsh, Paul M, GÜRLEYÜK, Çagri, MAKINWA, Kofi, SEGUINE, Dennis R, MACSWEENEY, Dermot, O'KEEFFE, Daniel
Format Patent
LanguageEnglish
Published 22.08.2024
Subjects
ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS
BASIC ELECTRONIC CIRCUITRY
DETECTING MASSES OR OBJECTS
ELECTRICITY
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE
MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
PHYSICS
PULSE TECHNIQUE
TARIFF METERING APPARATUS
TESTING
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Summary:Front-end circuits that combine inductive and capacitive sensing are described. In one embodiment, an apparatus includes a plurality of inductive elements, an inductive measurement circuit, and a frequency divider circuit. The inductive measurement circuit is to output a first signal with a first frequency. The first signal is associated with an inductance change of one of the inductive elements. A feedback circuit can maintain the sinusoidal operation of the first signal. The frequency divider circuit can generate a second signal with a second frequency that is lower than the first frequency.
Bibliography:Application Number: US202418608691