公开(公告)号：US11933822B2

公开(公告)日：2024-03-19

申请号：US17574188

申请日：2022-01-12

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Jorge L. Reynaga ,  Marco A. Janko ,  Emmanuel A. Marchais ,  John L. Melanson

IPC: G01R19/00 ,  G01R27/02 ,  G08B6/00 ,  H02P29/00

CPC classification number: G01R19/0046 ,  G01R27/02 ,  G08B6/00 ,  H02P29/00

Abstract: A method for estimating actuator parameters for an actuator, in-situ and in real-time, may include driving the actuator with a test signal imperceptible to a user of a device comprising the actuator during real-time operation of the device, measuring a voltage and a current associated with the actuator and caused by the test signal, determining one or more parameters of the actuator based on the voltage and the current, determining an actuator type of the actuator based on the one or more parameters, and controlling a playback signal to the actuator based on the actuator type.