Electronic device and control method
Number of patents in Portfolio can not be more than 2000
United States of America
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Dec 3, 2024
Grant Date -
Mar 23, 2023
app pub date -
Oct 28, 2021
filing date -
Oct 28, 2021
priority date (Note) -
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Abstract
An electronic device for controlling an LRA (Linear Resonant Actuator) includes a signal generator, a driver, a delay unit, a sensor, and a DSP (Digital Signal Processor). The signal generator generates a digital signal. The driver drives the LRA according to the digital signal. The delay unit delays the digital signal for a predetermined time, so as to generate an estimated voltage signal. The sensor detects the current flowing through the LRA, so as to generate a sensing current signal. The DSP controls the resonant frequency or the gain value of the signal generator according to the estimated voltage signal and the sensing current signal.
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