Patent ID: 8232738

Claim:
A printed circuit board (PCB) comprising: a bridge rectifier for rectifying an AC voltage to a rectified AC voltage; a light-emitting diode (LED) light source, wherein a terminal of said LED light source receives said rectified AC voltage; and a first switch coupled to said LED light source in series and for controlling a current through said LED light source according to a predetermined current reference, wherein said first switch is controlled linearly, wherein said LED light source is powered on and regulated when a signal indicative of said rectified AC voltage is greater than a DC voltage, and wherein said LED light source is powered off when said signal indicative of said rectified AC voltage is less than said DC voltage; wherein the PCB further comprising a current path coupled in parallel with said LED light source, and an illuminated switch coupled between an AC power source and said bridge rectifier, wherein a current flows from said bridge rectifier through said current path to ground if said illuminated switch is turned off.