| 摘要 |
<p>When an electronic timepiece is in the power-saving mode for stopping indication of the present time, it is decided whether the charging voltage fed from a large capacitor (48) is higher or lower than a predetermined reference voltage. If it is higher, the large capacitor has stored the electric power necessary for returning from the power-saving mode to the indication mode; therefore, when power generation is detected, the present time-return processing is effected. On the other hand, if the charging voltage is lower than the predetermined reference voltage, supply of the power source voltage to a control circuit is stopped, thereby suppressing wasteful consumption of the electric energy stored in the large capacitor. This ensures that when the power generator starts generation of power, the electronic timepiece is quickly restarted.</p> |
