2020-05-06 - Benabadji Mohammed Salim

Simplify the battery gauge with a 1-dot bar graph display

This display uses a cheap six-pin microcontroller and a tri-color LED to realize a simple alternative to the usual four-LED…

2020-04-29 - Yoelit Hiebert

Testing solid-state lighting reliability

LED light sources continue to improve in reliability and overall performance, but still require additional research.

2020-04-27 - Brian Dipert

Teardown: Voice-activated, Wi-Fi-connected dimmer switch

Want to put "smart" lighting in your house? This smart dimmer combines a dual-microphone array and speaker, voice-command processing, and…

2020-03-31 - Yoelit Hiebert

DOE lighting workshop explores lighting science and systems

This year’s DOE Lighting R&D Workshop covered topics like lighting for plants and human health, and integration of lighting and…

2020-02-25 - Yoelit Hiebert

MicroLED displays: the challenges and advantages

MicroLED displays could replace LCDs and OLEDs in big-screen TVs in the not-too-distant future, if manufacturing challenges can be overcome.

2020-02-14 - Francesc Estragués and Ralf Ohmberger, Monolithic Power Systems

Ensure EMC compliance in automotive LED design

The switch-mode power supplies LEDs require create an EMC compliance issue that needs to be addressed.

2020-01-31 - Vijay Deshpande

Solar day lamp designs use passive and active current-limiting circuits

This Design Idea provides complete instructions for designing solar day lamps using both passive and active current limiting circuits.

2019-12-27 - Brian Dipert

Teardown: Bluetooth-enhanced LED bulb

See how this Bluetooth LED light bulb compares to the wireless smart LED bulbs we've already dissected.

2019-12-02 - Yoelit Hiebert

Li-Fi: An attractive alternative to Wi-Fi

The wireless communication technology is implemented in a space by way of LED lighting assemblies that include signal-processing circuitry and…

2019-10-23 - Brian Dipert

Teardown: Wi-Fi LED light bulb

After dissecting a Zigbee-based smart LED light bulb, our teardown engineer puts one based on a different wireless protocol (Wi-Fi)…