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

Patent metadata

Field	Value
Publication number	US-9112433-B2
Application number	US-201213633187-A
Country	US
Kind code	B2
Filing date	Oct 2, 2012
Priority date	Oct 3, 2011
Publication date	Aug 18, 2015
Grant date	Aug 18, 2015

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, a displacement detection section adapted to detect that the deforming member is displaced beyond a predetermined level, an inductor electrically connected to the piezoelectric device, a switch disposed between the piezoelectric device and the inductor, and a control section adapted to set the piezoelectric device and the inductor to an electrically conductive state via the switch if the displacement detection section detects that the deforming member is displaced beyond the predetermined level.

First claim

What is claimed is:

1. A power generation unit comprising:
a deforming member adapted to deform while switching a deformation direction;
a piezoelectric device provided to the deforming member,
a displacement detection section adapted to detect that the deforming member is displaced beyond a predetermined level;
an inductor electrically connected to the piezoelectric device;
a switch disposed between the piezoelectric device and the inductor
a capacitor electrically conn…

Assignees

• Seiko Epson Corp

Inventors

• Ide Noritaka
• Hirabayashi Atsuya
• Tabata Kunio
• Oshima Atsushi
• Yoshino Hiroyuki

Classifications

• H02N2/181 Primary

  Electricity · mapped topic

• H01L41/1136

  Electricity · mapped topic

• H10N30/306

  Electricity · mapped topic