Electronic device and control method

An electronic device for controlling an LRA (Linear Resonant Actuator) includes a signal generator, a mixer, a driver, a sensor, and a DSP (Digital Signal Processor). The signal generator generates a digital signal. The mixer generates a mixed signal according to the digital signal and a pilot signa...

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Bibliographische Detailangaben
Hauptverfasser:	HSIAO, MING-JUN, YANG, TSUNG-HAN, WANG, YENIH, WU, TSUNG-NAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES BASIC ELECTRONIC CIRCUITRY CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SELECTING RESONANT CIRCUITS TUNING RESONANT CIRCUITS
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Beschreibung
Zusammenfassung:	An electronic device for controlling an LRA (Linear Resonant Actuator) includes a signal generator, a mixer, a driver, a sensor, and a DSP (Digital Signal Processor). The signal generator generates a digital signal. The mixer generates a mixed signal according to the digital signal and a pilot signal. The driver drives the LRA according to the mixed signal. The sensor detects a current flowing through the LRA, so as to generate a sensing current signal. The DSP includes a low-pass filter. The low-pass filter processes the sensing current signal, so as to generates a low-frequency signal. The DSP controls a gain value of the signal generator according to the low-frequency signal.