Power generation unit, electronic apparatus, transportation device, battery, and method of controlling power generation unit

摘要

A power generation unit includes a first piezoelectric device having a pair of electrodes, a second piezoelectric device stacked on the first piezoelectric device, a switch electrically connected between the pair of electrodes, a current detection section adapted to detect a current generated in the second piezoelectric device, and a control section adapted to control the switch, and the control section electrically connects the switch for a predetermined period in at least either one of a case in which the current detected by the current detection section reaches a level one of equal to and higher than a first reference value or a case in which the current reaches a level one of equal to and lower than a second reference value.

主权项

1. A power generation unit comprising:
a first piezoelectric device having a pair of electrodes; a second piezoelectric device stacked on the first piezoelectric device; a switch electrically connected between the pair of electrodes; a current detection section adapted to detect a current generated in the second piezoelectric device; and a control section adapted to control the switch, wherein the control section electrically connects the switch for a predetermined period in at least either one of a case in which the current detected by the current detection section reaches a level one of equal to and higher than a first reference value or a case in which the current reaches a level one of equal to and lower than a second reference value.