| 摘要 |
<p>PURPOSE: A lighting and dimming apparatus of a street light is provided to prevent the supply of the lighting voltage from being instantaneously blocked when converting into the dimming, thereby preventing the street light from being instantaneously turned off. CONSTITUTION: A 12V power supply unit (1) supplies the relay driving power of DC12V. A 5V power supply unit (2) supplies the DC power source of 5V. A microprocessor (3) receives the DC power source from the 5V power supply unit. The microprocessor lights a power lamp and an operation lamp. The microprocessor controls the internal operation by lighting and dimming. [Reference numerals] (1) 12V power supply unit; (2) 5V power supply unit; (3) Micro processor; (4) Deeming conversion unit; (5) OFF preventing unit when deeming; (6) Lighting unit; (7) Detection unit of blackout time; (8) Lighting control unit</p> |
