公开(公告)号：US20140062346A1

公开(公告)日：2014-03-06

申请号：US13145397

申请日：2011-05-03

申请人： Zhihua Feng ,  Yuting Ma ,  Liang Huang ,  Yongbin Liu ,  Weiwei Shao

发明人： Zhihua Feng ,  Yuting Ma ,  Liang Huang ,  Yongbin Liu ,  Weiwei Shao

IPC分类号： H02N2/00

CPC分类号： H02N2/0075 ,  H01L41/042

摘要： A switched capacitor charge pump driver for piezoelectric actuator includes a power source, a first switching capacitor and a piezoelectric actuating circuit, wherein during being at a first state, the first capacitor is charged by the power source; during being at a second state, the first capacitor is discharged to the piezoelectric actuator in the actuating circuit. The switched capacitor charge pump driver for piezoelectric actuator can expand the application of charge controller to a broader frequency range, especially at low frequencies and effectively decrease the hysteresis of piezoelectric stack over a large frequency range even at a quasistatic state. In addition, a method for driving piezoelectric actuator by a switched capacitor charge pump is provided.

摘要翻译： 用于压电致动器的开关电容器电荷泵驱动器包括电源，第一开关电容器和压电驱动电路，其中在处于第一状态时，所述第一电容器由所述电源充电; 在处于第二状态时，第一电容器被放电到致动电路中的压电致动器。 用于压电执行器的开关电容器电荷泵驱动器可以将充电控制器的应用扩展到更宽的频率范围，特别是在低频下，并且即使在准静态下也能在大频率范围内有效地降低压电叠层的滞后。 此外，提供了一种通过开关电容器电荷泵驱动压电致动器的方法。

公开(公告)号：US09093925B2

公开(公告)日：2015-07-28

申请号：US13145397

申请日：2011-05-03

申请人： Zhihua Feng ,  Yuting Ma ,  Liang Huang ,  Yongbin Liu ,  Weiwei Shao

发明人： Zhihua Feng ,  Yuting Ma ,  Liang Huang ,  Yongbin Liu ,  Weiwei Shao

IPC分类号： H02N2/00 ,  H01L41/04

CPC分类号： H02N2/0075 ,  H01L41/042

摘要： A switched capacitor charge pump driver for piezoelectric actuator includes a power source, a first switching capacitor and a piezoelectric actuating circuit, wherein during being at a first state, the first capacitor is charged by the power source; during being at a second state, the first capacitor is discharged to the piezoelectric actuator in the actuating circuit. The switched capacitor charge pump driver for piezoelectric actuator can expand the application of charge controller to a broader frequency range, especially at low frequencies and effectively decrease the hysteresis of piezoelectric stack over a large frequency range even at a quasistatic state. In addition, a method for driving piezoelectric actuator by a switched capacitor charge pump is provided.

摘要翻译： 用于压电致动器的开关电容器电荷泵驱动器包括电源，第一开关电容器和压电驱动电路，其中在处于第一状态时，所述第一电容器由所述电源充电; 在处于第二状态时，第一电容器被放电到致动电路中的压电致动器。 用于压电执行器的开关电容器电荷泵驱动器可以将充电控制器的应用扩展到更宽的频率范围，特别是在低频下，并且即使在准静态下也能在大频率范围内有效地降低压电叠层的滞后。 此外，提供了一种通过开关电容器电荷泵驱动压电致动器的方法。