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:
Jul. 18, 2017
Filed:
Jul. 03, 2014
Texas Instruments Incorporated, Dallas, TX (US);
James Hall, Parker, TX (US);
Jianbai Jenn Wang, Mountain View, CA (US);
Cuiling Gong, Dallas, TX (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
A piezoelectric energy harvester device has a cantilevered structure with a rectangular proof mass portion defined by holes through a substrate along three sides of a proof mass portion and supported by a thinned hinge portion for free pivotal movement relative to an anchor portion. Elongated strips of piezoelectric energy harvesting units are formed in side-by-side spaced positions on the hinge portion and aligned parallel or perpendicular to a stress direction. Multiplexing electronics coupled to contact pads on the anchor portion selectively connects different strip combinations to power management circuitry, responsive to variations in vibration magnitude or modes.