公开(公告)号：US09274602B2

公开(公告)日：2016-03-01

申请号：US13663907

申请日：2012-10-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mayank Garg ,  David Hernandez ,  Brandon Beckham

IPC: H02P1/00 ,  H02P6/08 ,  G06F3/01

CPC classification number: G06F3/016

Abstract: An apparatus and method for controlling a haptic actuator. A haptic actuator controller can includes driver input amplifier, an actuator feedback amplifier, an actuator driver, and a gain controller. The actuator driver is configured to drive a haptic actuator based on a difference of output of the input amplifier and output of the actuator feedback amplifier. The gain controller is configured to determine a boost interval for initiating motion of the haptic actuator, the boost interval based on a boost threshold back-electromotive-force (BEMF) voltage value exceeding a BEMF voltage generated by the haptic actuator. The gain controller is also configured to apply boost gains in the input amplifier and the feedback amplifier during the boost interval. The boost gains are higher than gains applied subsequent to the boost interval to maintain motion of the haptic actuator.

Abstract translation: 一种用于控制触觉致动器的装置和方法。 触觉致动器控制器可以包括驱动器输入放大器，致动器反馈放大器，致动器驱动器和增益控制器。 致动器驱动器被配置为基于输入放大器的输出和致动器反馈放大器的输出的差来驱动触觉致动器。 增益控制器被配置为基于超过由触觉致动器产生的BEMF电压的升压阈值反电动势（BEMF）电压值来确定用于启动触觉致动器的运动的升压间隔。 增益控制器还被配置为在升压间隔期间在输入放大器和反馈放大器中施加升压增益。 升压增益高于在升压间隔之后施加的增益以维持触觉致动器的运动。

公开(公告)号：US20140118126A1

公开(公告)日：2014-05-01

申请号：US13663907

申请日：2012-10-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mayank Garg ,  David Hernandez ,  Brandon Beckham

IPC: G08B6/00

CPC classification number: G06F3/016

Abstract: An apparatus and method for controlling a haptic actuator. A haptic actuator controller can includes driver input amplifier, an actuator feedback amplifier, an actuator driver, and a gain controller. The actuator driver is configured to drive a haptic actuator based on a difference of output of the input amplifier and output of the actuator feedback amplifier. The gain controller is configured to determine a boost interval for initiating motion of the haptic actuator, the boost interval based on a boost threshold back-electromotive-force (BEMF) voltage value exceeding a BEMF voltage generated by the haptic actuator. The gain controller is also configured to apply boost gains in the input amplifier and the feedback amplifier during the boost interval. The boost gains are higher than gains applied subsequent to the boost interval to maintain motion of the haptic actuator.

Abstract translation: 一种用于控制触觉致动器的装置和方法。 触觉致动器控制器可以包括驱动器输入放大器，致动器反馈放大器，致动器驱动器和增益控制器。 致动器驱动器被配置为基于输入放大器的输出和致动器反馈放大器的输出的差来驱动触觉致动器。 增益控制器被配置为基于超过由触觉致动器产生的BEMF电压的升压阈值反电动势（BEMF）电压值来确定用于启动触觉致动器的运动的升压间隔。 增益控制器还被配置为在升压间隔期间在输入放大器和反馈放大器中施加升压增益。 升压增益高于在升压间隔之后施加的增益以维持触觉致动器的运动。