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 ...

Editor's Note: Here's another take on the transformerless AC line power supply, which finds use in some well-insulated, low-power devices. Our technical reviewer pointed out that C ac should be an ...

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 ...

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 ...

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 ...

Abstract: This paper studies the driving of white light emitting diodes (LEDs) from very low voltages in the 1.2 to 2 V range. The proposed idea is based on replacing the standard Schottky diode used ...

Abstract: This paper presents the design and validation of a 3-phase inverter connected to an induction AC motor, which is integrated in a curtain control module. The circuit was modeled using bond ...