DRIVING METHOD AND DRIVING APPARATUS OF A PIEZOELECTRIC DEVICE BY PERIODICAL SWEEPING OF MULTIPLE FREQUENCY, CAPABLE OF MAXIMIZING THE PRODUCTIVITY OF APPLIANCES

摘要

PURPOSE: A driving method and a driving apparatus of a piezoelectric device by periodical sweeping of multiple frequencies are provided to maximize the operation stability of appliances and improve productivity of a piezo-electric resonator.;CONSTITUTION: A driving apparatus of a piezoelectric device(206) by periodical sweeping of multiple frequencies sweeps the frequency of driving signals of a frequency synthesizer(204) at fixed time intervals. A processor device(201) transfers the control signals to the frequency synthesizer to set up the step of the frequency sweep. The drive unit of the piezo-electric resonator drives a piezo-electric resonator by removing the sweep cycle of frequency, retaining time, and the transition intervals.;COPYRIGHT KIPO 2010