Power House

  • Congratulations to the winners: Robert Cich, M. Eric Carr, Aidan Talerico, and Andrew! Edit: Click here to read all APEC 2014 blog posts on Power House. This year during APEC, we wanted to give back to our fans by offering a chance to win 1 of 4...
  • Let's talk about it! The Engineer It videos from Texas Instruments are instructional, how-to videos on a variety of technical topics. We've devoted this space to talk about a series of Engineer It videos devoted to testing power supplies. The...
  • You heard, right? The incandescent light bulb that we have known for over 100 years will not be produced any more in the United States. Actually, the 100W incandescent has been phased out since 2012 and the 75W has been phased out since 2013. But maybe...
  • The exhibit at Florida’s Fort Myer’s airport, when I landed there last week, consisted of classic automobiles produced by Henry Ford. The antique Ford cars from almost a century ago were on display on the airport concourse. The cars looked...
  • As this is my first blog post, I want to take a second and let you know why this blog is important to me. I know that not everyone who uses PoE can be part of the IEEE committee and this is one more way to reach out and ask for feedback on what is important...
  • It’s no mistake that when you think of MSP430, Texas Instrument's flagship microcontroller, low power is one of the first things that comes to mind. After all, this is why MSP430 is such a popular choice for battery-powered applications. By...
  • My first switching power supply design was a 150W DC to AC inverter for automotive. It was in 1999; my manager stepped in the lab and gave me a nice looking metal box with a cigarette plug adapter at one end of it and AC outlet at the other end. He told...
  • Part of the engineer lifestyle is a box, or bag, or drawer full of old but still functional power adapters and battery chargers. The gear they once powered is long gone but these little gems wait patiently for something to do, a load to power. In the...
  • As the next meeting of the IEEE802.3 study groups and task forces is still a week or so away, I thought I would spend a little time talking about the IEEE802.3bu task force. If you recall from my previous post , the 802.3bu task force is the result...
  • A common concern in LED lighting has been keeping THD (Total Harmonic Distortion) below 10%. Power sources act as non-linear loads and draw a distorted waveform that contains harmonics. These harmonics can cause interference in the working of other electronic...