| 摘要 |
PURPOSE:When a feeding circuit is controlled to make the feeding according to the output of the detected signal of a human body with a human body detecting means, to make it possible to light lighting fitting automatically giving no surprise to whom going to enter into a lighting controlled area by increasing gradually the rise current at the beginning of the feeding. CONSTITUTION:When the detected signal P of a human body is outputted from a human body detecting device 12, a control circuit 14 outputs a lighting signal T to turn a feeding circuit on. Where, resistances R1, R2 and a capacitor C are provided in the output circuit of a timer 23 composing the control circuit 14. The resistance R1 and the capacitor C in the control circuit 14 construct a RC circuit which delays the rise of the lighting signal T outputted from the timer 23 to transmit the signal to a light emitting diode 19B, as the result, the rise current is supplied to a lighting fitting 11 at the beginning of the feeding of the feeding circuit 134 can be increased gradually. |
