Categories

PCB a Week 17: USB Spypow

Posted on Friday, July 19th, 2013 in project logs by DP

SpyPow-Render

Mats continues his challenge of designing one PCB every week.  In week 17  he came up with USB Spypow, it displays the actual charge rates of a USB device:

Yesterday I saw the “The Practical Meter” on Kickstarter – a small unit that is placed inline with the USB when charging your phone and shows the actual charging power (in watts) on a row of LEDs.
I wanted to have a go at it as well so I did the following last evening.

This entry was posted on Friday, July 19th, 2013 at 11:00 am and is filed under project logs. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

3 Responses to “PCB a Week 17: USB Spypow”

  1. The power of DP! – I already got good suggestions for some serious improvements from Bertho.

  2. Lee says:

    That’s brilliant!
    Looks great, too.

  3. johnson says:

    that’s really wonderful..how can i get to design one(pcb)

Leave a Reply

Notify me of followup comments via e-mail. You can also subscribe without commenting.

Recent Comments

  • David Haile: You are a smart person and absolutely correct. That kind of current needs a lead acid car battery behind it. Still, it does have its...
  • KH: The solution discussed in the linked article is wrong. It's a largish Lipo (2500mAh) and he thinks 77uA is acceptable... ha ha ha ha ha....
  • Dave: I never had to opportunity to learn or use this stuff when I was in college (I'm sooo old that op-amps were just being developed...
  • Matthias: Aww yeah.
  • Samuel: Have a nice week everyone