ACTUATOR DEVICE BASED ON AN ELECTROACTIVE POLYMER

An active matrix array of electroactive polymer actuators is provided, each electroactive polymer actuator having a switching arrangement. The switching arrangement comprises a first circuit (90) connected to a first terminal of the electroactive polymer actuator, for selectively driving the first t...

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Bibliographische Detailangaben
Hauptverfasser: JOHNSON, Mark Thomas, FISH, David Andrew
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:An active matrix array of electroactive polymer actuators is provided, each electroactive polymer actuator having a switching arrangement. The switching arrangement comprises a first circuit (90) connected to a first terminal of the electroactive polymer actuator, for selectively driving the first terminal of the electroactive polymer actuator to ground or connecting it to an open circuit. A second circuit (92) is connected to a second terminal of the electroactive polymer actuator, for selectively driving the second terminal of the electroactive polymer actuator to ground or connecting it to an open circuit. Furthermore, a pull-up component (50) is permanently connected between a drive voltage and the first terminal of the electroactive polymer generator. By controlling both terminals of the electroactive polymer actuator, it is possible to reduce static power consumption, at least when no voltage is to be stored across the electroactive polymer actuator.