ILLUMINATION APPARATUS USING OPTICAL FIBER AND ITS CONTROL SYSTEM

摘要

PURPOSE: An illumination apparatus using optical fiber and its control system is provided to achieve a high efficiency of light emitting diodes, while reducing size and cost. CONSTITUTION: An illumination apparatus comprises a power supply unit(1) for supplying power to a micro controller(3); an input/output interface unit(2) for transmitting input signals inputted from a signal selection button or a color adjust button to the micro controller; an input current control circuit(4) for controlling the value of current determining the brightness of light emitting diodes(LED); an LED switching and pulse width modulation control unit(5) for determining the intensity and color of overall optical output by turning on/off the LEDs; an LED unit(6) constituted by R,G,B LEDs; and an over-voltage over-current protection circuit(7) for protecting LEDs.