| 摘要 |
PURPOSE:To perform correct dimming by displaying the lighting level and confirming the lighting level changed when a push button switch is pushed. CONSTITUTION:When the push button switch 5 of a dimming wall switch is pushed, the lighting level is changed in sequence according to the clock oscillated from an oscillating circuit 8, and the clock is counted by a counter 9. At the same time, charges of a capacitor 14 are discharged, a transistor 15 is excited, an indicator 6 is turned on, and the change of the lighting level is displayed. If the push of the switch 5 is stopped when the desired lighting level is attained while the indicator 6 is observed, the dimming data are sent to a transmitting line 2 by the one-shot from a one-shot circuit 10 and the output from a latch 11, and only the final data thus set are processed. Correct dimming can be performed, and the occupied time of the transmitting line is shortened. |
