2020-07-14 - Yoelit Hiebert

Artificial lighting disrupts wildlife

Artificial lighting results in behavior disruption, injury, and death to thousands of animals each year.

2020-07-02 - Robert Heider

Should you use a 555 or a Schmitt trigger?

Which should be used, the 555 or the Schmitt trigger? It depends.

2020-06-29 - Brian Dipert

Is it time to upgrade to 4K UHDTV?

10 years later, and for 1/3 the price, this engineer still ended up with a notable TV upgrade.

2020-06-12 - Leti

Researchers break throughput record for LiFi using single GaN blue μ-LED

Data-transmission rate of 7.7Gbps positions Lifi as possible replacement for Wi-Fi with further R&D and industrial standardization to ensure interoperability…

2020-06-05 - Susan Nordyk

GaN switcher ICs boost power output

Additions to the InnoSwitch3-MX series of isolated switchers enable PSU designs with continuous output power of up to 75 W…

2020-06-03 - Yoelit Hiebert

Using LEDs for germicidal disinfection

The COVID-19 pandemic has increased awareness of UV disinfection, and the number of LED-based germicidal lighting products being developed.

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…