| 摘要 |
An electronic apparatus includes a power generator (20) as a power supply, a capacitor (30) for accumulating generated power, a logic circuit (170) driven by the power from the capacitor, and a power supply cut-off circuit (31). When the power generator starts operating, the power supply cut-off circuit (31) does not supply power to the logic circuit (170) until a voltage of the capacitor (30) reaches a preset voltage. When the voltage of the capacitor (30) becomes equal to or greater than the preset voltage, power is supplied from the capacitor to the logic circuit. Accordingly, a leakage current when power generation starts is prevented, and most of the generated power is accumulated in the capacitor. The capacitor can rapidly accumulate electricity, and the time until activation of an electronic circuit driven by the capacitor is reduced. <IMAGE> |
