公开(公告)号：US20170179947A1

公开(公告)日：2017-06-22

申请号：US14970694

申请日：2015-12-16

Applicant: Texas Instruments Incorporated

Inventor： Yogesh Kumar Ramadass

IPC: H03K17/687

CPC classification number: H03K17/687 ,  H03K17/162 ,  H03K17/567 ,  H03K2217/0036

Abstract: Embodiment of the inventive subject matter include an apparatus comprising a first switch, a second switch, a third switch, and a transistor. The first switch is coupled to a first voltage device and the transistor to selectively electrically connect the first voltage device to the transistor to provide a first charge to the transistor. The second switch is coupled to a second voltage device and the transistor to selectively electrically connect the second voltage device to the transistor to remove charge from the transistor. The third switch is coupled to the third voltage device and the transistor to selectively couple the third voltage device to the transistor to provide a second charge to the transistor.

公开(公告)号：US09344014B2

公开(公告)日：2016-05-17

申请号：US14015647

申请日：2013-08-30

Applicant: Texas Instruments Incorporated

Inventor： Dennis Darcy Buss ,  Yogesh Kumar Ramadass

IPC: H01L41/113 ,  H02N2/18

CPC classification number: H02N2/181 ,  H01L41/1136 ,  H02N2/188

Abstract: Piezoelectric harvesting devices are disclosed herein. An embodiment of a harvesting device includes a cantilever having a resonant frequency associated therewith, wherein the cantilever vibrates when in the presence of a vibration source, and wherein the harvesting device generates a current upon vibration of the cantilever. The generated current is present at an output. A bias flip circuit is used to tune the resonant frequency of the harvesting device based on measurements of the vibration source that causes the cantilever to vibrate, wherein the bias flip circuit includes a switch that connects and disconnects an inductor to the output.

Abstract translation: 本文公开了压电收获装置。 收获装置的实施例包括具有与其相关联的共振频率的悬臂，其中当存在振动源时悬臂振动，并且其中收获装置在悬臂振动时产生电流。 产生的电流存在于输出端。 偏置翻转电路用于基于导致悬臂振动的振动源的测量来调谐收获装置的谐振频率，其中偏置翻转电路包括将电感器连接到输出端的开关。