A METHOD FOR DETECTING MAX OSCILLATING FREQUENCY OF A SMALL-SIZED OSCILLATORY APPARATUS AND DEVICE THEROF

摘要

PURPOSE: A device for detecting a maximum vibration frequency is provided to detect a maximum vibration frequency of a small vibration device and to maintain the vibration strength of a product in which the small vibration device is attached. CONSTITUTION: A device for detecting a maximum vibration frequency comprises a comparator(350) and a computation module(340). The comparator receives first residual vibration signals and second residual vibration signals. The computation module sets a maximum vibration frequency of a vibration device based on an output value of the comparator. The first residual vibration signals and second residual vibration signals are transmitted to the comparator to the vibration device as remained vibration when a signal applying is stopped after the signals for driving the vibration device are applied. [Reference numerals] (100) Vibrating device; (310) Host unit; (320) Driving unit; (330) Vibrating device driving module; (340) Calculation module; (350) Comparator; (360) Timer; (AA) Communication wire; (BB) Control signals; (CC) Driving signals; (DD) Driving signal 1; (EE) Driving signal 2