The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 05, 2021
Filed:
Dec. 09, 2016
Koninklijke Philips N.v., Eindhoven, NL;
Mark Thomas Johnson, Eindhoven, NL;
David Andrew Fish, Eindhoven, NL;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
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 () 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 () 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 () 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.