| 摘要 |
PURPOSE:To make fine control possible, by controlling the conduction phase of a thyristor by the timing signal for the continuous light adjustment mode in the remote control unit of the illumination load. CONSTITUTION:Terminal equipments 15a-15d discriminate signals agreeing with addresses of their own stations from signals transmitted from signal transmission line 13 and are set to the control mode corresponding to the control signal. Illumination loads 17a-17k are connected to terminal equipments 15a-15d through plural light adjusting equipments 16a-16f. Light adjusting equipments 16a-16f have thyristors and change their conduction angles according to the light adjustment mode. In case of the continuous light adjustment mode, conduction angles of thyristors are controlled by the timing signal which is given through timing signal transmission line 14 and can be varied arbitrarily in the half period of the power source waveform, thereby obtaining continuous light adjustment. |
