| 摘要 |
<p>PURPOSE: To improve the property of separating a voltage supplied to a lighting system from a control signal superimposed on the voltage. CONSTITUTION: The output stage of a control device 1 having a general DC power supply 6 is connected via a DC power output line 3 to the input stage of a lighting system 2 having an inverter lighting circuit 10. A transmission circuit 8 which superimposes a control signal on a DC voltage output to the DC power output line 3 is provided on the side of the control device 1, and a reception circuit 11 which demodulates the control signal superimposed on the DC voltage is provided on the side of the lighting system 2. Therefore, the property of separating the DC voltage, i.e., the voltage supplied to the lighting system 2, from the control signal superimposed on the voltage is improved.</p> |
