Study of Sensorless Load Estimation Method for Disturbance Compensation Control of Linear Resonant Actuator

抄録

　This paper proposes a feedback control method for a Linear Resonant Actuator (LRA), in which an external load can be estimated using two signals of the back-EMF. Using this estimated load, it becomes possible to reduce the decrease in amplitude of LRAs when the external load suddenly increased. The effectiveness of this method was verified through FEM analysis and measurements.