Patent ID: 9173257
Filing Date: 2015-10-27
Classification: H05B,Y02B

Abstract:
1. A simple to use dimming control for a Low Voltage LED lamp configured to fit within a conventional single-gang electrical receptacle, comprising: at least one low-voltage LED lamp; a dimmer controller for connection to an AC-DC power supply for providing a selectable DC control voltage; a Pulse Width Modulator (PWM) connected to said LED lamp, said PWM being responsive to said DC control voltage to produce output pulses having widths corresponding to said selectable DC control voltage to modify the power delivered to the LED lamp and to thereby control the intensity of the light emitted by the LED lamp; wherein said PWM includes a micro-controller to modulate the duty cycle of said output pulses to drive said LED lamp to switch it between “on” and “off” conditions to regulate the total amount of time in each cycle of output power that the lamp is illuminated and to thereby control the intensity of the light produced by said LED lamp; wherein said micro-controller is connected to said LED lamp through a switch; wherein said LED lamp is a multicolor lamp having multiple sets of LEDs; and said micro-controller is connected to each set of LEDs through a corresponding switch to control the intensity of the light produced by each set of LEDs; and further including a second micro-circuit connected through said corresponding switches to individually control each of said LED sets to select which set or sets can be activated by said first-named micro-processor.