Notes concerning “Electronics”

• Notes on simulating a ZVS converter (Baxandall converter) 02021-01-16 (6 minutes)
• A ghetto linear voltage regulator from discrete components 02021-01-21 (updated 02021-01-27) (10 minutes)
• Trying to design a simple switchmode power supply using Schmitt-trigger relaxation oscillators 02021-01-26 (updated 02021-01-27) (32 minutes)
• Snap logic, revisited, and four-phase logic 02021-02-08 (9 minutes)
• Can you do direct digital synthesis (DDS) at over a gigahertz? 02021-02-08 (updated 02021-02-24) (30 minutes)
• Energy autonomous computing 02021-02-18 (updated 02021-12-30) (58 minutes)
• Panelization in PCB manufacturing 02021-02-25 (updated 02021-02-26) (7 minutes)
• Refreshing Flash memory periodically for archival 02021-03-02 (1 minute)
• Bench supply 02021-03-19 (updated 02021-12-30) (25 minutes)
• Failing to stabilize the amplitude of an opamp phase-delay oscillator 02021-03-23 (updated 02021-03-24) (10 minutes)
• A bargain-basement Holter monitor with a BOM under US$2.50 02021-04-07 (updated 02021-07-27) (33 minutes)
• Logarithmic low-power SERDES 02021-04-08 (4 minutes)
• Notes on pricing of locally available oscilloscopes 02021-04-16 (updated 02021-07-27) (2 minutes)
• Can you get JLCPCB to fabricate a CPU for you affordably from “basic” parts? 02021-04-17 (updated 02021-12-30) (9 minutes)
• A boiler for submillisecond steam pulses 02021-04-28 (updated 02021-12-30) (10 minutes)
• Three phase logic 02021-04-30 (updated 02021-07-27) (9 minutes)
• A four-dimensional keyboard matrix made of linear voltage differential transformers (LVDTs) to get 30 or 180 keys on five pins 02021-05-12 (updated 02021-12-30) (4 minutes)
• Planetary screw potentiometer 02021-05-12 (updated 02021-12-30) (1 minute)
• Broken hard disks are the cheapest source of ultraprecision components 02021-06-02 (updated 02021-06-12) (3 minutes)
• Micro impact driver 02021-06-02 (updated 02021-06-12) (2 minutes)
• Flux-gate downconversion in a loopstick antenna? 02021-06-15 (updated 02021-07-27) (2 minutes)
• Notes on what would be needed to drive a PS/2 keyboard from an Arduino 02021-06-20 (updated 02021-12-30) (12 minutes)
• Arc maker 02021-08-07 (updated 02021-12-30) (11 minutes)
• Power transistors 02021-08-07 (updated 02021-12-30) (12 minutes)
• Constant current buck 02021-08-10 (updated 02021-08-15) (4 minutes)
• Weighing balance design 02021-09-06 (updated 02021-12-30) (9 minutes)
• Switching kiloamps in microseconds 02021-09-09 (updated 02021-12-30) (1 minute)
• Three phase differential data 02021-09-22 (updated 02021-12-30) (4 minutes)
• Liquid dielectrics for hand-rolled self-healing capacitors 02021-09-30 (updated 02021-12-30) (3 minutes)
• Ranking MOSFETs for, say, rapid localized electrolysis to make optics 02021-10-11 (updated 02021-12-30) (8 minutes)
• An even simpler offline power supply than a capacitive dropper, with a 7¢ BOM 02021-10-14 (updated 02021-12-30) (7 minutes)
• Triggering a spark gap with an exploding wire 02021-10-19 (updated 02021-12-30) (1 minute)
• Triggering a spark gap with low jitter using ultraviolet LEDs? 02021-10-20 (updated 02021-10-23) (8 minutes)
• Implementation and applications of low-voltage Marx generators with solid-state avalanche breakdown? 02021-10-20 (updated 02021-12-31) (39 minutes)
• Viscoelastic probing 02021-11-04 (updated 02021-12-30) (2 minutes)
• A simple 2-D programmable graphics pipeline to unify tiles and palettes 02021-11-18 (updated 02021-12-30) (6 minutes)
• Simplest blinker 02021-12-01 (updated 02021-12-30) (9 minutes)
• Capacitive linear encoder sensors 02021-12-11 (updated 02021-12-30) (7 minutes)
• MOSFET body diodes as Geiger counter avalanche detectors? 02021-12-17 (updated 02021-12-30) (1 minute)