One of my least favorite but also most favorite things to work on is PCB layout. It's a dull, mundane, and unglorious task, but at the same time it's perfect for getting into a flow state and zoning out with a podcast or music. When I'm in that zone, a whole day goes by in … Continue reading Feedback Factor: Op-Amps and the Games They Play →

Hi everybody! So today I wanted to show everyone a circuit that I designed and mostly wanted to coin the name for out of a sense of Bob Widlar-esque narcissism, since I couldn't find anything like this while doing research. The Task The project I was tasked with was to take our programmable current source … Continue reading The Bipolar Shrid Pump – Single Supply Bipolar Current Source with Common Mode Feedback →

These 4 terms pretty much completely encapsulate what we concern ourselves with. And yet so many students and even professionals have misconceptions that can lead them astray. So let's nail these terms down and give them concrete meanings that we can all agree on. 1. Charge Charge is the first thing we learn on the … Continue reading Charge, Current, Electrons, and Holes →

I plan on making a longer post about the exact math behind it all, root locus, characteristic roots, Fourier theory, all that jazz, but for the time being I just wanted to post a little thing I made that animates the s-plane, the transfer function, and the frequency spectrum magnitude and phase. I'll probably update … Continue reading S-Plane To Fourier: Cartoon Cartoons →