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.
Halloween isn’t just a time for creative costumes. Thanks to the element14 online design community, the holiday this year also brings us a number of creative electronic device design ideas aimed at making your Halloween party a unique experience.
On April 15, 2010, President Barack Obama gave a major speech at the Kennedy Space Center in Florida, announcing that the US would send astronauts to Mars by the mid-2030s. But in order to do so, NASA would first need to ramp up its capabilities through missions directed toward "a series of increasingly demanding targets," i.e. asteroids.
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.