LED’s and photovoltaic cells play increasingly prominent roles in our world. Both are semiconductor diodes. The LED or light-emitting diode emits light while the photovoltaic cell converts light to electricity. The LED is a diode that emits light only when forward-biased. Under a forward voltage bias, electrons cross from the n-region and recombine with the […]
Lighting
Super-small white-chip LEDs feature high luminous intensity
ROHM Semiconductor introduced their new CSL1104WB ultra-compact, high luminous intensity white chip LEDs. The products are optimized for applications requiring high brightness white light emissions, such as IoT devices, drones, and other battery-equipped applications. In recent years, high luminous intensity (2.0cd) white LEDs have been increasingly adopted to improve visibility in a range of applications […]
Project: Implementing a 4xN LED driver
by Dialog Semiconductor LED displays are widely used in systems ranging from digital clocks, counters, timers, electronic meters, basic calculators, and other electronic devices capable of displaying numerical information. Figure 1 depicts an example of a 7-segment LED display which can show decimal numbers and characters. As each segment on the LED display can be […]
Want to kill Covid? 30 sec under 285-nm UV-LEDs will do it
Researchers from Tel Aviv University found that UV light at a wavelength of 285 nm was almost as efficient in disinfecting the Covid virus as a wavelength of 265 nm, requiring less than half a minute to destroy more than 99.9% of the coronaviruses. They say this result is significant because the cost of 285-nm […]
AC-DC convection cooled sealed power supplies handle 400 W
Bel Power Solutions announces the ABS400/MBS400 Series of convection cooled power supplies which are sealed and fully potted, offer IP66/67 ingress protection, and fit 1U applications. These power supplies may be mounted for conduction or convection cooling and are rated at 300 W in still air and 400 W with conduction via the optional heat […]
Eval board wrings out LED power modules, includes analog and PWM dimming
With the MagI³C-LDHM (LED Step Down High Current Module) Power Module, Würth Elektronik now has the perfect solution for LED power supply in its portfolio. To make it even easier for developers to use these DC-DC converters with integrated controller IC, inductors, and capacitors—Würth Elektronik now offers an LDHM Evaluation Board. It integrates an efficient […]
Smart lighting base supports presence, light and activity detection
The LUMAWISE Endurance N Enhanced Base from TE Connectivity makes it simple to integrate innovations in street lighting controls. As smart cities become smarter and require more complex systems, LUMAWISE offers a streamlined product platform that supports modularity across lighting control products. LUMAWISE supports applications such as presence, light, and activity detection as well as […]
PLCC-packaged LEDs feature homogeneous color perception
Würth Elektronik has doubled its product range of SMT assembly white top view LEDs to 30 models. The 3014, 3030, and 5630 packages of the WL-SWTP product group have been expanded to include the “A series”. These new LEDs in PLCC packages feature the best possible lumen per watt ratio and MacAdam binning, thus achieving […]
eGaN 170-V FETs optimized for synchronous rectification apps
Efficient Power Conversion Corporation advances the performance capability while lowering the cost of off-the-shelf gallium nitride transistors with the introduction of the EPC2059 (6.8 mΩ, 170 V) eGaN FET. This device is the latest in a family of 100 V – 200 V solutions suitable for a wide range of power levels and price points. […]
Automotive sequential LED controller IC cuts cost and size
The MAX25605 sequential LED controller from Maxim Integrated Products, Inc. allows easy and cost-effective addition of automotive sequential LED lighting features. It saves development time and reduces design complexity by eliminating the need for a microcontroller or software. In addition, the MAX25605 reduces design space by up to 50 percent and slashes bill-of-materials (BOM) costs […]
