Dialog improves LED dimmer compatibility

Dialog Semiconductor has improved its LED light dimming intellectual property. “The first LED driver from this new platform, the iW3688, delivers smooth, flicker and shimmer-free dimming supporting the widest range of phase-cut dimmers. It also eliminates the external bleeder circuit,” said Dialog. Instead of a bleeder circuit (see below) Dialog has integrated digital algorithms that modulate primary FET sw ...

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Passive device improves reliability of LED streetlights

The principle advantages of LED lighting are its long life, which can be as long as 60,000 hours, or 20 years, and inherent energy efficiency. LED streetlights have been shown to use 15% of the energy and give off less heat, while generating more light per watt. LEDs do not contain toxic chemicals such as mercury compared to high-pressure sodium lamps or mercury-vapor lamps. Because of their long lives, the ...

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