DRIVE SENSE CIRCUIT

A drive sense circuit (DSC) includes an analog front end (AFE) circuit, a filter circuit, and a data processing circuit. The AFE circuit includes a signal source circuit and a comparison circuit. The signal source circuit, when enabled and coupled to a sensor, provides an analog drive signal to the...

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Bibliographische Detailangaben
Hauptverfasser:	Gray, Patrick Troy, Seger, JR., Richard Stuart, Van Ostrand, Daniel Keith, Gray, Michael Shawn
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS BASIC ELECTRONIC CIRCUITRY CALCULATING COMPUTING CONTROLLING COUNTING ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS PULSE TECHNIQUE REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	A drive sense circuit (DSC) includes an analog front end (AFE) circuit, a filter circuit, and a data processing circuit. The AFE circuit includes a signal source circuit and a comparison circuit. The signal source circuit, when enabled and coupled to a sensor, provides an analog drive signal to the sensor, which affects an electrical property of the analog drive signal. The comparison circuit compares the analog drive signal as effected by the sensor to a reference signal and produces an analog sensed signal that represents the effected electrical property of the analog drive signal. The filter filters the analog sensed signal to produce a filtered sensed signal. The data processing circuit operably generates a digital value representative of sensed characteristic of the sensor based on the filtered sensed signal.