Power generation unit, electronic apparatus, transportation device, and method of controlling power generation unit
US8941289B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2012 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | Sep 18, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/188
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power generation unit includes: a deforming member adapted to deform while switching a deformation direction; a piezoelectric device provided to the deforming member, and having a pair of electrodes; a displacement sensor adapted to detect a deformation amount of the deforming member, and then output deformation amount information as information related to the deformation amount; an inductor electrically connected to the piezoelectric device; a switch disposed between the piezoelectric device and the inductor; and a switch control section adapted to control the switch so as to set the pair of electrodes to a shorted state for a predetermined period of time when the deformation amount exceeds a predetermined level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.