Power House

  • 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...
  • A major update of TINA-TI is now available for download. Version 9.1 includes new features requested by you, including 565 TI models. This version of TINA TI offers: Up to 5X speed increases over version 7.0 making power design and simulation...
  • 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...
  • How many times have you plugged a nearly dead phone into a charger only to get the message, “charging not supported with this accessory,” or something to that effect? What’s wrong? The connectors all fit. The USB cable works...
  • 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...
  • I remember when I first started working with power management devices over 15 years ago. Quite frankly, I didn't even know what an ‘ LDO ’ was, or even a switching regulator for that matter, since those terms weren't covered in the...
  • Power Optimizers have been introduced to the photovoltaic (PV) market in the past few years and proven that there is a viable market for distributed electronics in PV systems. As of early 2012, more than one million power optimizers from various manufacturers...
  • Previously, I posted part 1 and 2 of a 3 part series on how to test your power supply design: measuring efficiency (part 1) and measuring noise (part 2) . I covered various noise sources and how to properly measure them with an oscilloscope. I also discussed...
  • As my buddy, Brian, mentioned in his blog , these days everyone carries a smart phone or tablet. They are necessary for business emails, personal calls and keeping up with the world. There is always a new craze in games, Angry Birds, Candy Crush, Words...
  • Last week, I posted part 1 of a 3 part series on how to test your power supply design: Testing power supply: measuring efficiency . I covered the fundamentals about testing, including the necessary equipment and how to prepare a circuit for testing. I...