Thinking_J

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Design products for many industries


Thinking_J

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  • 01.19.2016
  • The death of the light switch
  • Beatrice, Self actualization? really? I don't think EDN is your normal audience. Lighting is important .. but I think you have been drinking a bit too much of your own cool-aid.
  • 01.11.2016
  • $9 single-board computer is set to make its debut
  • The link provided.. does show the R8 processor as based on the Coretex-A8 core not the Coretex A13. Having trouble finding any of their processors using the Cortex-A13. Oddly enough, they have a "A13" processor.. that uses the Cortex-A8 core.
  • 12.22.2015
  • Reduce relay coil current with a reset controller IC
  • Another variation I have used. simply use a spare PWM output. allows the relay to be controlled by one transistor (simplest circuit) After the relay has been enabled for set amount of time, switch over to PWM to reduce the current to the coil. ( PWM can be implemented in software or hardware configuration of the uC) A lot of circuit variations in the implementation to address: EMI, turn on/off times, etc. Regardless of variation, it is still (generally) the lowest component count.
  • 12.22.2015
  • Reduce relay coil current with a reset controller IC
  • Clever use of reset IC. However, When ever using the lower hold current to keep a relay energized, one should remember to set the threshold current to withstand expected shock , vibration, temperature range and variations in the relay from the manufacturer. I have found that the "Ideal" or "specified" hold current is often not enough to work under all expected physical conditions. An alternative usage: Use of similar circuit with higher voltages (faster relay "turn-on"). Basically, a simplified low impedance injector driver (peak/hold) There are a few commercial ICs already available for this purpose.
  • 12.01.2015
  • IoT can save billions: The power of one percent
  • "OnStar" predates the term "IoT" by at least 4 years (1995 vs 1999) OnStar does basically everything you described for the car. like so many words in use today, IoT's definition is a bit vague (wiki still includes cars) To most today... it is about taking connectivity to a much smaller scale of devices.
  • 12.01.2015
  • IoT can save billions: The power of one percent
  • Absolutely correct. The GE and Rolls squeeze every bit of performance they can out of their engines.. with what ever technology they can get their hands on. With much of their fuel savings .. squandered by other issues (most of them "human" in nature). Biggest saving in fuel usage by airlines will be when they get rid of their old flight paths based on navigational aids (beacons) and tech put in place 60 years ago. And someone will market this change as a example of "IoT" .. further screwing up the education of the public about technology.
  • 12.01.2015
  • IoT can save billions: The power of one percent
  • Sadly, answers to these valid questions are not needed to blindly put this stuff into place. Just look at most of the "first use" examples of tech advances during the last 50 years. Corollary : Easier to obtain forgiveness than get permission. AKA: apply, become dependent on, then figure out why things go horribly wrong, apply band aids, repeat...
  • 12.01.2015
  • IoT can save billions: The power of one percent
  • "what Ashton perhaps didn't realize precisely how much".. Really? We have some precision being demonstrated here? "do the math" .. on a bunch of conjectures (why use 1%?) and estimations. Small savings applied to large quantities .. makes big numbers. Sure. OK. But don't imply there is any precision or reality in these numbers.
  • 11.25.2015
  • Do you know your colour codes?
  • Ah.. the good old days. Formerly known as: "these trying times" When .... Being color (sorry not a "Brit" using "colour") blind would keep you from being accepted in to of any electronics programs in the military. Steve G: thanks for not repeating the somewhat offensive / most commonly used Mnemonic ditty often taught. I am not normally concerned about being politically correct, but that one really rubbed me the wrong way.
  • 07.23.2012
  • This one really takes the cakeā€”and the schematics
  • Great story.. But I have to ask: With this level of screw ups in this start up.. did they (could they?) survive? I am amazed that some startups survive long enough to produce a successful product and make money for all involved, despite their ineptitude. And when one does, it somehow validates their poor management. They still can't tell the difference between luck and skill.