| 摘要 |
PURPOSE: A remote dimming control system for an LED street light using power line communication is provided to effectively control the dimming and the turn on and off of the LED street light by using power line communication in a remote main control center. CONSTITUTION: A protection circuit(301) protects a dimming controller(11a) from an excess current and a surge. A power line coupling part(302) and a power line communication part(303) communicate with a repeater through a power line. An LED constant current circuit(308) supplies a constant current to an LED lamp(11b) by the driving power generated from an LED driving SMPS circuit(307). |
