Inventors:
Richard Waters - San Diego CA, US
Mark Fralick - San Diego CA, US
Hugo Jazo - San Diego CA, US
Brad Chisum - San Diego CA, US
Assignee:
The United States of America, as represented by the Secretary of the Navy - Washington DC
International Classification:
H02K 33/00
H02K 35/00
US Classification:
310 15, 310 1203, 310 36, 310319, 310338, 310339, 290 1 R, 32420715
Abstract:
An energy harvester comprising: a substrate; two magnets coupled to the substrate in close proximity to each other with like magnetic poles facing each other creating a flux gap; a coil coupled to the substrate and disposed within the flux gap, wherein the coil and the magnets are coupled to the substrate such that substrate acceleration causes relative elastic motion between the magnets and the coil thereby exposing the coil to a changing magnetic flux; and a resonant frequency tuner coupled to the substrate and configured to adjust the resonant frequency between the coil and the magnets.