gradientdescent.dev - Build. Measure. Understand.A personal engineering lab documenting projects and experiments in electronics, embedded systems, edge computing, and high-performance computing.https://gradientdescent.dev/EXP-014 · MOSFET Switching Loss vs. Gate Resistancehttps://gradientdescent.dev/experiments/exp-014-mosfet-switching-loss/https://gradientdescent.dev/experiments/exp-014-mosfet-switching-loss/How much switching energy does each additional ohm of gate resistance cost? Measured turn-on/turn-off losses across five gate resistor values.Mon, 31 Aug 2026 00:00:00 GMTBUILD-007 · Adjustable Linear Bench Supplyhttps://gradientdescent.dev/projects/build-007-bench-supply/https://gradientdescent.dev/projects/build-007-bench-supply/A 0–18 V, 2 A adjustable linear supply with current limiting, built to replace a wall-wart collection and to learn analog power design.Fri, 28 Aug 2026 00:00:00 GMTNOTE-026 · Why Decoupling Capacitors Need Short Return Pathshttps://gradientdescent.dev/notes/note-026-decoupling-caps/https://gradientdescent.dev/notes/note-026-decoupling-caps/The loop area between a decoupling cap and its IC sets the inductance that decides whether the cap works at all.Sat, 22 Aug 2026 00:00:00 GMTBUILD-004 · Breadboard Computerhttps://gradientdescent.dev/projects/build-004-breadboard-computer/https://gradientdescent.dev/projects/build-004-breadboard-computer/An 8-bit breadboard computer built module by module - clock, registers, ALU, control logic - to understand computer architecture from wires up.Sat, 15 Aug 2026 00:00:00 GMTASSAY-003 · Sustained Jetson Inference Under a 15 W Power Envelopehttps://gradientdescent.dev/research/assay-003-jetson-15w/https://gradientdescent.dev/research/assay-003-jetson-15w/Characterizing sustained vision-model throughput, thermals, and clock behavior on a Jetson Orin Nano held at a strict 15 W budget for one hour.Mon, 10 Aug 2026 00:00:00 GMTNOTE-019 · What a Scope Probe's Ground Spring Actually Doeshttps://gradientdescent.dev/notes/note-019-ground-spring/https://gradientdescent.dev/notes/note-019-ground-spring/Swapping the alligator ground lead for the ground spring removed 80% of the ringing I was about to debug in the circuit.Wed, 05 Aug 2026 00:00:00 GMTEXP-009 · Measuring RC Time Constants on the Benchhttps://gradientdescent.dev/experiments/exp-009-rc-time-constants/https://gradientdescent.dev/experiments/exp-009-rc-time-constants/Do measured RC charge curves match theory once probe loading is accounted for? A first calibration of bench technique against known values.Mon, 20 Jul 2026 00:00:00 GMT