Posts Tagged ‘led driver’

How to design a power efficient LED driver

Choice of LED driver topology can improve the power efficiency of LED backlight systems in mobiles and other battery-powered systems, writes Jan Enenkel of austriamicrosystems  In the latest generation of smartphones, which feature large displays suitable for showing web pages and video, the LED backlight system is one of…

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Intersil develops LED LCoS-based pico-projector

Intersil has developed a pico projector system, which it claims is the smallest production-ready LED liquid crystal on silicon (LCoS) based design, writes Richard Wilson. Developed for embedded or accessory pico projector applications, the firm’s reference design is based on Micron’s E330 5.5 cubic cm qHD…

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Simple LED lighting chip offers switch dimming

Supertex has introduced an LED lighting chip with switch dimming. The IC, dubbed HV9801A, dims LED lamp brightness to one of four preset levels through rapid toggling of a light switch, writes Steve Bush. Light levels progress up and down sequentially and if the switch is turned off for more…

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Linear LED driver powers 20A constant current

One to note maybe: LED driver powers 20A constant current, says Linear Technlogy.

It has introduced a synchronous step-down DC-DC converter that will deliver a 20A current to drive high current LEDs, writes Richard Wilson.

The LT3743 will drive up to 20A of continuous LED current from a…

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