CPC H02N 2/06 (2013.01) [G06F 3/016 (2013.01); G06F 3/0202 (2013.01); G06F 3/041 (2013.01); H02N 2/026 (2013.01)] | 19 Claims |
1. An actuator feedback system comprising:
a case;
a button part of which at least a portion moves with respect to the case;
a vibrator connected to the button part and comprising a magnetic body;
a coil configured to generate a magnetic field in the vibrator; and
a controller configured to apply, based on a magnitude or a direction of an induced electromotive force generated in the coil as the button part is manipulated by a user, a current to the coil to move the vibrator,
wherein the controller comprises:
an input detection unit configured to detect the induced electromotive force generated in the coil when the button part is manipulated; and
a signal control unit configured to determine, based on information on the induced electromotive force detected by the input detection unit, a time point when the vibrator starts to be moved.
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