公开(公告)号：US09680084B2

公开(公告)日：2017-06-13

申请号：US14246842

申请日：2014-04-07

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Joo Yul Ko ,  Jung Wook Seo ,  Ho kwon Yoon ,  Hong Yeon Cho ,  Boum Seock Kim ,  Kang Heon Hur

IPC: H01L41/04 ,  H01L41/083 ,  H02N2/14

CPC classification number: H01L41/083 ,  B06B2201/55 ,  H01L41/042 ,  H02N2/14

Abstract: A piezoelectric element driving apparatus may apply a predetermined driving signal to a piezoelectric element to drive the piezoelectric element. The driving signal may be an asymmetrical waveform in which amplitudes of first and second polarities thereof are different from each other. An exemplary embodiment in the present disclosure may provide a piezoelectric element driving apparatus and method having a high output while protecting dielectric characteristics of a piezoelectric element by driving the piezoelectric element using an asymmetrical driving signal.

公开(公告)号：US20150188456A1

公开(公告)日：2015-07-02

申请号：US14246842

申请日：2014-04-07

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Joo Yul KO ,  Jung Wook Seo ,  Ho Kwon Yoon ,  Hong Yeon Cho ,  Boum Seock Kim ,  Kang Heon Hur

IPC: H02N2/00 ,  H01L41/09 ,  H01L41/083

CPC classification number: H01L41/083 ,  B06B2201/55 ,  H01L41/042 ,  H02N2/14

Abstract: A piezoelectric element driving apparatus may apply a predetermined driving signal to a piezoelectric element to drive the piezoelectric element. The driving signal may be an asymmetrical waveform in which amplitudes of first and second polarities thereof are different from each other. An exemplary embodiment in the present disclosure may provide a piezoelectric element driving apparatus and method having a high output while protecting dielectric characteristics of a piezoelectric element by driving the piezoelectric element using an asymmetrical driving signal.

Abstract translation: 压电元件驱动装置可以向压电元件施加预定的驱动信号以驱动压电元件。 驱动信号可以是不对称波形，其中第一和第二极性的振幅彼此不同。 本公开的示例性实施例可以提供一种具有高输出的压电元件驱动装置和方法，同时通过使用非对称驱动信号驱动压电元件来保护压电元件的介电特性。