Michael Dunn

's profile
image
Editor in chief

Michael Dunn is editor-in-chief of EDN, and has been messing with electronics almost as long as he's been walking. He got his first scope around age 15, and things have been going downhill ever since. Scopes now vie with wine racks, harpsichords, calculators, and 19th century pianos for space. Over the years, he's designed for the automotive, medical, industrial, communications, and consumer industries, as both freelancer and employee, working with analog, digital, micros, and software. Since 2000, he's run the TekScopes Yahoogroup, now with over 5,000 members. He was previously editor-in-chief of Scope Junction: http://edn.com/collections/4422580/Scope-Junction-blogs


Michael Dunn

's contributions
  • 06.12.2017
  • Embedded resistance measurement
  • Easier to just measure resistances across the three legs and solve the equations. Though I think I've seen the technique above – or similar – used for in-circuit measurements of components. *That's* useful! :-)
  • 06.06.2017
  • Analog or digital: Choose your oscilloscope inputs
  • Looks gorgeous, though sad they're still "nickel & diming" on the serial decodes, especially given the included jitter analysis! I wonder just how *many* nickels & dimes serial is. And if you can just pay for common UART/I2C/SPI without having to fork over for the rest!
  • 05.31.2017
  • Double µC’s PWM frequency & resolution
  • You mention harmonics, but only point out the elimination of the first (i.e., doubling frequency). In the example shown, other harmonics are also eliminated – a triangle wave has a much easier-to-filter spectrum than a ramp.
  • 09.01.1997
  • Going toastal
  • We just restored this article, and thought it worth sharing, for those whose memory of reading it wasn't as fresh as yours. Where do you think articles/blogs come from? The sky? No...from people. Are you a person? If yes, then perhaps consider contributing instead of complaining. http://www.edn.com/aboutus
  • 05.26.2017
  • Is iPad scope worth professional pricetag?
  • Even "big name" traditional scopes beat out this module. Some examples from Tektronix: MSO2024B $3610 4ch 16 dig 200MHz 1GSa 1MPoint (no DDS) MDO3024 $4590 4ch (opt dig) 200MHz 2.5GSa 10MPoints (opt SA & DDS)
  • 03.17.2017
  • Your other hobbies: Engineering-like?
  • Wow, check out the paper gates & adder! https://www.youtube.com/watch?v=yvANcR4mQ7M It's a bit confusing because of the layout – just pay close attention to the signal labels...