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Electronic device including closed-loop controller for haptic actuator and related methods

  • US 10,007,344 B2
  • Filed: 04/12/2016
  • Issued: 06/26/2018
  • Est. Priority Date: 09/30/2015
  • Status: Active Grant
First Claim
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1. An electronic device comprising:

  • a haptic actuator comprising a housing and a field member movable within the housing;

    a driver capable of driving the haptic actuator, and sensing at least one of a drive voltage and drive current for the haptic actuator; and

    a closed-loop controller cooperating with the driver, and capable ofdetermining a calibration of the haptic actuator based upon at least one of the drive voltage and drive current,storing at least one reference pattern of movement for the field member, anddriving the haptic actuator in a closed-loop configuration based upon the determined calibration of the haptic actuator and the stored at least one reference pattern of movement for the field member.

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