Sensor Switch with Spread Spectrum Sensing Signal and Synchronous Rectifier

A capacitive sensor including a sensor electrode connected to a signal generation circuit and a signal evaluation circuit. The signal generation circuit contains a signal generator that is a noise generator or a pseudo-noise generator, the signal evaluation circuit includes a synchronous rectifier....

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Bibliographische Detailangaben
Hauptverfasser:	Christ, Bernhard, Oldendorf, Dirk, Hüttenhofer, Kilian, Schüler, Jens
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS BASIC ELECTRONIC CIRCUITRY ELECTRICITY MEASURING 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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Beschreibung
Zusammenfassung:	A capacitive sensor including a sensor electrode connected to a signal generation circuit and a signal evaluation circuit. The signal generation circuit contains a signal generator that is a noise generator or a pseudo-noise generator, the signal evaluation circuit includes a synchronous rectifier. The synchronous rectifier is connected for synchronization to the signal generator.