| 摘要 |
PURPOSE:To enable the automatic setting of load in the case in which a timepiece of 1-cycle 12-hours is used as a 24-hour time switch by setting the output of a T-FF in accordance with the signal from a photosensitive switch when said switch operates. CONSTITUTION:A T-ff 14 is made operating at time (a), and when a signal 4 is outputted from a hotosensitive switch 15 upon turning on, the signal 4 is made into a signal 5 with a monostable multivibrator 24. The signal 5 and the output 3 of the FF14 are coupled and are fed back to the FF14 through an OR circuit 21. Then, the output of the FF14 changes from L to H level and the anticipated operating state is obtained. |
