TE Connectivity is unveiling several innovations to its LUMAWISE photo control portfolio providing street lighting manufacturers additional design flexibility. TE’s LUMAWISE base assembly, sleeve and covers together integrate power and signal interface to the dimming receptacle to ensure long-term reliability. This interface can be used in applications such as LED outdoor roadway, street and area lighting […]
Applications
What’s all this stuff about capacitive power supplies for LEDs?
A while back a viewer of our 60-W LED bulb teardowns posted a comment about the complexity of the power supplies found in the bases of these bulbs. We talked about some of the reasons these bulbs contain switching supplies in a previous article. But our latest post elicited this comment from another reader: Well, […]
LED controller handles dense exterior lighting with little EMI
The MAX20078 synchronous buck, high-brightness LED controller from Maxim Integrated Products, Inc. provides both fast response time and low electromagnetic interference (EMI) for exterior LED lighting and improved safety applications. Ideal for matrix lighting designs, the LED controller allows designers to achieve high performance, ease of design, and fast time-to-market. In advanced lighting applications such as matrix […]
Wireless self-powered BLE wall switches handle LED lighting systems
EnOcean has launched a new product line for wireless and self-powered LED lighting controls for open standards under the brand Easyfit, which will be presented at Smart Lighting 2017 Conference (Hamburg, May 30-31, 2017). The Easyfit product line includes wireless and self-powered wall switches based on Bluetooth Low Energy radio standard for LED lighting systems for […]
Prototype, screen-printed, flexible and stretchable batteries for future ready-to-wearables
Charging — let alone recharging — a wearable is a significant challenge. Conventional recharging technologies don’t necessarily translate well to a piece of clothing that will literally go through the ringer in terms of stretching. But now Nanoengineers at the University of California San Diego have developed the first printed battery that is flexible, stretchable and […]
Drivers targeted at 12V and 24V linear LED strips
Appealing to lighting designers, the BCR401U, BCR402U and BCR405U constant current regulators introduced by Diodes Incorporated enable simple driving of low-current LED strips and panels in the commercial and industrial lighting sectors. Targeted at 12V and 24V linear LED strips, these regulators increase light output efficiency as they only require a 1.4V supply, allowing more […]
10-30-W LED Power Supplies Feature White-Tunable Output
LinkCom Manufacturing announces its 10-30 DTW (Dim-to-Warm) Series, the latest addition to the INCORE family of high-performance constant-current LED power supplies. The DTW Series features dual outputs – one typically connected to an LED with a correlated color temperature (CCT) of 2700K and the other with 6500K – with independent dimming control enabling dimming to closely […]
Why do we need all this LED driver stuff, anyway?
The late Bob Pease, a venerated and well-liked engineer at National Semiconductor Corp. (now part of Texas Instruments) once wrote a series of technical musings inspired by questions that mostly younger engineers had to put to him somewhere along the line. We thought back to how Mr. Pease might have reacted when we noticed a […]
24-W LED drivers said to be world’s smallest
Seoul Semiconductor has developed the phase-cut DC LED driver series, with a power density 10X higher than conventional LED drivers. The NanoDriver Series is said to be the world’s smallest miniature converter at just 13.5mm wide, and is available in four versions rated for 16W and 24W output power for operating LED lighting with input […]
Dimming LEDs
As the use of LEDs for area lighting has grown dramatically, with both the use of LED-based replacement bulbs as well as LED-based fixtures for new construction (called luminaires in the trade), the issue of dimming these LEDs becomes more critical. LEDs require a very different technique for dimming than the conventional legacy incandescent bulb. […]
