Patent ID: 7446459
Filing Date: 2008-11-04
Classification: H01L,H02N

Abstract:
1. A hybrid piezoelectric energy harvesting transducer system, which system comprises: a. first and second symmetric, pre-curved piezoelectric elements in the form of sheets, each of which presents a convex and a concave major surface, the first and second symmetric, precurved piezoelectric elements being mounted separately at their ends on a frame so that the concave major surfaces of the piezoelectric elements are positioned opposite to each other; b. a linear piezoelectric element in the form of a sheet having no curvature, the linear piezoelectric element mounted separately at its ends on the frame and positioned thereon between the first and second pre-curved piezoelectric elements and spaced therebetween; c. the first and second pre-curved piezoelectric elements and the linear piezoelectric element all communicating with electrical energy harvesting circuitry having contact points which are located on the frame where the individual piezoelectric elements are mounted thereon;