LED Luminaries

LED news and insight from our technology editor Steve Bush, who has been messing with LED lighting for more years than he would care to remember.


ON Semi drives LEDs with constant current

Migration from incandescent lighting to solid state alternatives is continuing, but if LED adoption is to reach applications such as replacement lamps in the domestic environment or automotive interiors, new driver and control techniques are needed, argues Steve Sheard of ON Semiconductor in an analysis piece on Electronics Weekly. 


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Power chip for 75W LED lighting

Power Integrations has introduced chips for mains-powered LED lighting up to 75W. The single stage design has both power factor correction (PFC) and a constant current regulation, and is aimed at high-bay, car park and street lamps. There are two devices: LNK410EG (dimming) and LNK420EG (non-dimming), plus…

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Rohm 4-pin LED lights have new thermal design

Rohm Semiconductor has a high brightness 4-pin PLCC4 LED range of devices with operating temperature range (-40°C to 100°C) with improved derating characteristics compared to PLCC 2 packages, writes Richard Wilson.

A gold-plated frame is utilized for superior sulfuration resistance.

There are three different models: – the…

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NXP evaluation system to simplify RGB LED power stage design

NXP Semiconductors has introduced its first development platforms for DALI and DMX512 wired lighting control systems based on the ARM Cortex-M0 processor, writes Steve Bush.

The evaluation systems feature an NXP LPC1100XL series microcontroller, which is designed to handle the communication requirements for intelligent lighting projects using DALI and…

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Plessey to make white power LEDs in Plymouth

Plessey has acquired University of Cambridge spin-out CamGaN, and will be using its technology to make white power LEDs in Plymouth. Its critical intellectual property is a way of growing LED-quality GaN on silicon substrates. “This technology is the product of substantial R&D investment over the…

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LED lighting to be a $10bn power supply market in 2016

The power supply market for LED lighting is forecast to reach $10bn in 2016, according to a report from IMS Research, writes Richard Wilson.

The report predicts that the rapid uptake of LED lighting will result in a potential market of four billion power supply units by 2016, worth $10bn…

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Electronics Weekly's guide to LED heatsinking

Check out the latest in the Electronics Weekly’s ‘big guides’ to LED technology – specifically, to LED heatsinking. Steve Bush, our Technology Editor, begins: In the early days of power LEDs, many lighting firms rushed out solid-state luminaries only to find them failing in service.The problem was heatsinking…

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