| 摘要 |
PURPOSE:To prevent a power source battery from being heavily loaded, by shifting the timing of a hand motor driving output and an alarm output so that they are not simultaneously applied. CONSTITUTION:A coincidence output, which is generated by a coincidence circuit 18 when alarm time set in an alarm time set circuit 17 is reached, is supplied through an inhibit circuit 15 to put an alram drive circuit 20 into operation. The circuit 15 is blocked by a drive pulse supplied from a frequency divider circuit 3 to a hand revolving step motor 15 to shift the timing of an alarm outut when a hand motor drive output is applied. As a result, the driving of the motor 15 and the generation of the alarm output are not simultaneously effected and a power source battery is protected from heavy load. Therefore, the lifetime of the battery is lengthened. |
