LIGHTING CONTROL DEVICE USING POWER LINE

摘要

PURPOSE: An illuminance lamp control device using a power line is provided to prevent the malfunction of illuminance lamp control by accurately processing signals. CONSTITUTION: A semiconductor switching element(110) is connected between multiple illuminance devices(200) and a power line. A FET(Q1) is connected to the semiconductor switching element in parallel. A control diode(ZD1) is connected to a drain and a gate end of the FET. A microcomputer(120) sets a predetermined trigger signal according to resistance(R1), connected to a source and the gate end of the FET, and a key signal, inputted from a switch part(130), and outputs the set trigger signal to the semiconductor switching element. The switch part comprises multiple switches to input the key signal to the microcomputer. [Reference numerals] (21) Voltage level sensing part; (22A) Control part; (23) Lighting;