Trends in technology that make your designs a byte more efficient.
    • Aug 2, 2013

    Moving to a New Home! Analog Wire...

    Well… it’s moving time again! With my new focus on high performance analog and signal integrity, I am moving to the famous TI blog – Analog Wire. All the original Energy Zarr Blog content will be available via our archive on the E2E community for your reading pleasure. I look forward to blogging on the new venue and I hope you enjoy...
    • Jun 12, 2013

    Industrial Strength – Part III

    In my prior two post ( Part I and Part II ) on designing industrial strength systems I discussed thermal management issues and various methods for hardening designs against EMI and ESD. In the last installment I discussed system failures due to lightning effects and other electromagnetic susceptibility issues. These failures can be subtle and only slightly...
    • May 14, 2013

    Industrial Strength Design – Part II

    In part 1 of this blog series I talked about harsh environments which include mines, mills, chemical plants, et. al. Designing for those environments means taking into consideration extremes which normal products (e.g. consumer goods) would never experience. We covered (briefly) some thermal issues found in these environments, but beyond high temperatures...
    • Apr 29, 2013

    Industrial Strength Design - Part I

    When you think of engineering for industrial applications , my first thought goes to environmental conditions of applications such as steel mills. There are motor controllers working right next to (or attached to) giant electric furnaces and smelters, huge overhead cranes and massive electric fields. It’s just another day at the office, huh? You...
    • Apr 16, 2013

    Revitalizing Op-Amp Topologies

    If you are as old as I am, you may remember the quintessential “Op-Amp Cook Book” by Walter Jung (I have an autographed copy) or the must have “Intuitive IC Op-Amps” by Tom Frederiksen (I also have an autographed copy). Many of the useful circuits in both of these works employ split supply op-amps such as the LM741 . In the early...
    • Apr 9, 2013

    To Be Single or Differential, That is the Question

    Whether 'tis nobler to signal via complementary means, or to take arms against a sea of noise… ah, but I take literary license with Shakespeare. But it does raise a real question… should a designer use differential or single ended methods for carrying analog signals? The answer also contains a question… which is, “it depends...
    • Feb 12, 2013

    Everything is Part of the Circuit

    Now I’m sure as engineers we have all studied circuit modeling. SPICE is an amazing tool to emulate how your final circuit might perform… but what’s really interesting is that passive components such as resistors, capacitors, inductors and wires (conductors) are far more than that as frequency increases! It is also important to revisit...
    • Jan 17, 2013

    Where Did I Go Wrong? The System Edition

    In my previous blog “ Where Did I Go Wrong? Funny Mistakes in Electrical Engineering ” I discussed some simple, yet devastating things that led to circuit failures. In this post, I’m going to touch on a couple items that caused several system wide failures and yes… one is energy related. So sit back, enjoy a cup of your favorite...
    • Dec 10, 2012

    Tis the Season to Save Energy

    In my never ending quest to lower our carbon footprint, I bring you good tidings of progress made and lessons learned. Recently my wife and I became “empty nesters” and our two daughters are learning that a one degree change in the thermostat can affect their electric bill. You may have read some of my previous posts such as “ Saving...
    • Nov 20, 2012

    The Top 5 Reasons to be Thankful for CMOS

    Tis the season to be thankful… November 22 nd marks Thanks Giving Day in the US where people gather around a table to consume a feast and give thanks for friends and family. The engineering community has much to be thankful for as well. The number “zero” for instance… without zero, the ability to represent large numbers would...