发明名称 |
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.
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申请公布号 |
US2013082571(A1) |
申请公布日期 |
2013.04.04 |
申请号 |
US201213633195 |
申请日期 |
2012.10.02 |
申请人 |
SEIKO EPSON CORPORATION;SEIKO EPSON CORPORATION |
发明人 |
TABATA KUNIO;OSHIMA ATSUSHI;YOSHINO HIROYUKI;IDE NORITAKA;ONO YASUHIRO;HIRABAYASHI ATSUYA |
分类号 |
H02N2/18 |
主分类号 |
H02N2/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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