Invention Grant
- Patent Title: Haptic actuator controller
- Patent Title (中): 触觉执行器控制器
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Application No.: US13663907Application Date: 2012-10-30
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Publication No.: US09274602B2Publication Date: 2016-03-01
- Inventor: Mayank Garg , David Hernandez , Brandon Beckham
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Gregory J. Albin; Frank D. Cimino
- Main IPC: H02P1/00
- IPC: H02P1/00 ; H02P6/08 ; G06F3/01

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.
Public/Granted literature
- US20140118126A1 HAPTIC ACTUATOR CONTROLLER Public/Granted day:2014-05-01
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