Patent ID: 8558482

Claim:
An integrated system for supplying direct current and brightness dimming for light emitting diodes (LEDs) comprising: an LED driver power supply for supplying a constant direct current; an array of one or more LEDs; and an integrated programmable LED current pulse width modulation (PWM) dimming controller comprising: a front control panel for controlling the brightness of the array of one or more LEDs; and an LED current PWM dimming module; wherein the front control panel is secured to the LED current PWM dimming module by a slot-in interface on the LED current PWM dimming module; and wherein the LED current PWM dimming module comprises: an input voltage regulator; an over current protection circuit; an over temperature protection circuit; a microcontroller for generating a pulse-width modulated current; a direct current-to-direct current (DC-DC) buck converter for stepping down the pulse-width modulated current to establish a maximum LED-feeding current to said array of one or more LEDs; and a current selector, coupled to the DC-DC buck converter, for selecting amount of LED-feeding current step down in the DC-DC buck converter.