Piezo-electric sensor reset

In described examples, each node between adjacent capacitive elements of a stack of series-coupled capacitive elements is biased during a reset mode, where each of the capacitive elements includes piezoelectric material. A strain-induced voltage is generated across each of the capacitive elements. E...

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Bibliographische Detailangaben
Hauptverfasser: Zwerg, Michael, Shih, Wei-Yan, Nagaraj, Krishnasawamy, Bartling, Steven C, Elies, Brian, Khanna, Sudhanshu
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:In described examples, each node between adjacent capacitive elements of a stack of series-coupled capacitive elements is biased during a reset mode, where each of the capacitive elements includes piezoelectric material. A strain-induced voltage is generated across each of the capacitive elements. Each of the strain-induced voltages is combined to generate a piezoelectric-responsive output signal during a sensing mode at a time different from the time of the reset mode.