Texas Instruments Inc. introduced a new
single-stage LED lighting pulse width
modulation (PWM) controller. The TRIAC-dimmable solution regulates LED current
and also achieves near unity power factor. The reference design can achieve 85
percent efficiency, which enables high-density, small form factor designs. The TPS92210 is designed for general
lighting applications, such as commercial and residential recessed, troffer,
light bulb replacement, architectural and display lighting.
features flexible operation modes such as peak primary current, constant
on-time and frequency modulation. The constant on-time mode provides
single-stage power factor correction for improved efficiency.
cascoded MOSFET configuration results in 10 percent lower switching losses with
fast and easy high-voltage start-up compared to competitive devices.
Continuous linear TRIAC dimming provides flicker-free, uniform control.
Multiple protection features, such as over voltage protection without
optocouplers, thermal shutdown and advanced over current, safely shut down the
system if fault conditions exist.
Programmable fault response, full shutdown and shutdown restart provide added
flexibility for fault response.
The engineers and inventors of the post WWII period turned their attention to advancements in electronics, communication, and entertainment. Breakthrough inventions range from LEGOs and computer gaming to the integrated circuit and Ethernet -- a range of advancements that have little in common except they changed our lives.
The age of touch could soon come to an end. From smartphones and smartwatches, to home devices, to in-car infotainment systems, touch is no longer the primary user interface. Technology market leaders are driving a migration from touch to voice as a user interface.
Soft starter technology has become a way to mitigate startup stressors by moderating a motor’s voltage supply during the machine start-up phase, slowly ramping it up and effectively adjusting the machine’s load behavior to protect mechanical components.
A new report from the National Institute of Standards and Technology (NIST) makes a start on developing control schemes, process measurements, and modeling and simulation methods for powder bed fusion additive manufacturing.
If you’re developing a product with lots of sensors and no access to the power grid, then you’ll want to take note of a Design News Continuing Education Center class, “Designing Low Power Systems Using Battery and Energy Harvesting Energy Sources."
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.