This is the simple version of a white LED lamp that can be directly powered from mains. It can give ample light even for reading purpose. Capacitor Cx along with diodes D1 through D4 forms the AC step ...

The circuit below illustrates powering a LED (or two) from the 120 volt AC line using a capacitor to drop the voltage and a small resistor to limit the inrush current. Since the capacitor must pass ...

ANSAN, Korea--(BUSINESS WIRE)--Seoul Semiconductor, a leading global innovator of LED products and technology, announces a comprehensive series of AC LED modules that use the company’s patented Acrich ...

True to the history of other types of semiconductor products, LEDs offer better performance at a lower cost with every passing year. So much so, in fact, that the other elements of a conventional LED ...

High-brightness LEDs are an inexpensive, robust, and green replacement for halogen light bulbs. This Idea for Design shows you how to apply an AC LED driver to convert the usual 12 or 24 V AC ...

LEDs, or light-emitting diodes, are essential components in near-eye displays like virtual reality and augmented reality headsets and smart glasses, along with electronics like cameras and medical ...

International Rectifier has introduced a high-voltage, high-frequency buck regulator control IC for ac-dc offline, non-isolated applications requiring multiple light-emitting diode (LED) circuits or ...