PIEZOELECTRIC GENERATOR

摘要

A method of extracting electrical energy from mechanical motion includes reusing an elastic portion of energy in a transducer by transferring the elastic portion of energy to another transducer. An apparatus for extracting electrical energy from mechanical motion includes at least two transducers (332) coupled such that an elastic portion of energy in one transducer is transferable to the other transducer. The transducers (332) are coupled by a member (330) defining a waved surface, and each transducer defines a coupler (430) in contact with the waved surface for movement following the waved surface. Couplers (430) of two transducers (332) are positioned such that they move out-of-phase relative to each other.