LAMP DRIVER, LIGHTING SYSTEM AND METHOD

摘要

The present invention provides a lamp driver, a lighting system and a method. The method comprises the steps of measuring a line voltage; determining a voltage range between two threshold voltages wherein the measured line voltage lies; determining a reference signal Sref corresponding to the voltage range, the reference signal indicating a percentage of the maximum light source power; and controlling the light source power at a value that substantially equals the reference signal Sref.