Slides and Talks on Bald Engineer

STOP! Using the Wrong Capacitors | Teardown 2024

Thu, 20 Jun 2024 02:04:11 +0000

Learn more about Teardown 2024 Google Slides Download Slides (PDF) Links Circuit Break Podcast #434: The Other VCC Circuit Break Podcast #141: It Depends MLCCs with James Lewis YouTube: Bald Engineer’s Capacitor Videos Hioki USA: Unlocking the Secrets of Capacitor Impedance Plots Murata: SimSurfing Yageo Group / KEMET: K-SIM

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Preserving history with KiCad - KiCon 2019

Sat, 27 Apr 2019 15:47:06 +0000

View the presentation on SlideShare Classic, vintage, or retro computer systems are well documented on sites like Wikipedia. Their historic position is well known. Their schematics are even published from original documentation. But how useful are those schematics in their current form? (Spoiler, not much.) Presented at KiCon 2019. Download Slides (8mb)

Oscilloscope Triggering: HDDG #22 Presentation

Thu, 29 Jun 2017 23:25:28 +0000

During #22 of the Hardware Developers Didactic Galactic meetup, I discussed Oscilloscopes. (Previously James talked about capacitors.) In the presentation, I broke down the internals of an oscilloscope. The presentation started off with a block diagram. Then I discussed the main components: vertical amplifier, A/D, memory controller, some of the computer side stuff, and the keynote was on triggering. The trigger circuit of an oscilloscope fascinated me since very early in my HP/Agilent career. When I saw trigger modes like Pulse, Violation, Rise Time, and “Runt,” I thought: Wow, this must be the most complicated circuit in the scope! While it isn’t trivial, it very clever how just a few pieces of (relatively) simple hardware drive one of the most important aspects of a digital scope.

Hardware Developers Didactic Galactic 0xb: Capacitors (HDDG11)

Fri, 19 Feb 2016 01:39:45 +0000

Hardware Developers Didactic Galactic is a group for hardware designers, hackers, and enthusiasts to discuss hardware-related topics. HDDG11 (or 0xb) featured a presentation from SnapEDA CEO on Footprints and my presentation on Capacitors. Titled “They’re JUST capacitors?” I used content from my time as a KEMET Field Application Engineer. Overview In the presentation, I address the common myth or guideline: “capacitors should be derated 50%.” Comparing Aluminum, Ceramic, and Tantalum we discuss why each technology has a de-rating associated with it. Turns out, they all have different reasons to de-rate.

Engineers

Fri, 17 Jul 2015 13:00:02 +0000

Found this one while going through some old files. One of my favorite volunteering activities is introducing kids to engineering. After judging a FIRST competition, I learned about Central Texas Discover Engineering. They had a program that gave me a chance to spend an entire day talking to middle school kids about engineering. I started the class with a simple question: “What do engineers do? Surprisingly, most of the kids answered pretty well. Then I went through these slides to give them an idea of other types of engineers. Lastly, we did a fun “engineering” activity.

Learn Arduino Programming

Mon, 27 Apr 2015 14:00:49 +0000

When learning to use an Arduino, you have two things to learn: programming and hardware. In the past, I’ve taught some classes on how to program the Arduino. These are the slides I used to explain what the Arduino “Language” is, basic debugging concepts, how to use variables, and basic structures.

Getting started with Energia and the MSP430

Mon, 27 Apr 2015 14:00:16 +0000

An Open Source IDE for TI’s line of MSP430-based boards. Based on the same software as the Arduino project, Energia brings easy of use to an awesome family of microcontrollers.