公开(公告)号：US06400062B1

公开(公告)日：2002-06-04

申请号：US09532328

申请日：2000-03-21

申请人： Christopher F. Gallmeyer ,  Larry G. Waterfield

发明人： Christopher F. Gallmeyer ,  Larry G. Waterfield

IPC分类号： H01L4108

CPC分类号： H02N2/062

摘要： A control system for temperature compensating a piezoelectric device. The control system includes a temperature compensating circuit that is operable to receive a control signal corresponding to a desired position of the piezoelectric device and compensate the control signal in response to an estimated temperature proximate the piezoelectric device. A piezoelectric device control circuit is operable to receive the temperature compensated control signal and generate a control signal that is adapted to drive the piezoelectric device to the desired position. The temperature proximate the piezoelectric device may be estimated from an estimated ferroelectric polarization of the piezoelectric device or from a temperature sensor.

公开(公告)号：US06285115B1

公开(公告)日：2001-09-04

申请号：US09576401

申请日：2000-05-22

申请人： Christopher F. Gallmeyer ,  Larry G. Waterfield

发明人： Christopher F. Gallmeyer ,  Larry G. Waterfield

IPC分类号： H01L4106

CPC分类号： H02N2/062

摘要： A control system for controlling position and velocity of a piezoelectric device. The control system includes a position control circuit that is operable to receive a control signal corresponding to a desired position of the piezoelectric device, and to compare the control signal to an estimated position of the piezoelectric device. The position control circuit generates a position error control signal that is adapted to drive the piezoelectric device to the desired position. The control system may further include a velocity control circuit that is operable to receive the position error control signal and generate a control signal that is adapted to drive the piezoelectric device to the desired position and at the desired velocity according to a predetermined velocity profile.

摘要翻译： 一种用于控制压电装置的位置和速度的控制系统。 控制系统包括位置控制电路，其可操作以接收对应于压电装置的期望位置的控制信号，并将控制信号与压电装置的估计位置进行比较。 位置控制电路产生适于将压电装置驱动到所需位置的位置误差控制信号。 控制系统还可以包括速度控制电路，其可操作以接收位置误差控制信号并产生适于根据预定速度分布将压电装置驱动到期望位置并以所需速度驱动的控制信号。