ENERGY HARVESTER USING LARGE-AMPLITUDE VIBRATION

摘要

Provided is an energy harvester having high energy harvest efficiency. According to an embodiment of the present invention, an energy harvester using large displacement vibration includes: a cantilever having a fixed end and a free end; soft magnetic material which is installed in the free end of the cantilever and has predetermined weight; a magnet unit which is separated from the soft magnetic material by a first distance, is installed vertical to a longitudinal direction of the cantilever, and includes first and second permanent magnets which are installed to be separated by a second distance, respectively; a current generation unit which generates a current by converting mechanical energy into electrical energy according to the tilting of the cantilever; and a charge unit which stores the generated current.