My Electronics Projects/Notes

Finished Projects

A Rudimentary Pelletron

An induction-based electrostatic machine built from available house-hold items and pre-existing projects based on the design of a Pelletron (an improved Van de Graaff generator topology).

555 Flyback Driver

I made a simple circuit with a 555-based oscillator for driving a flyback transformer primary coil with some parts that were laying around the garage.

200V Boost Converter

A closed-loop 200V boost converter with a 555 clock and Schmitt trigger feedback.

Some bipolar power supplies

A couple of basic circuits for generating a bipolar supply from a single voltage rail.

Some Notes

Notes on LED Photometry

A page of notes on LED photometry drawing on Forrest Mims’s works.

Basic Magnetics

A page of info on the basics of magnetic materials.

Unfinished Projects/Graveyard

Low Noise Audio TIA

A design for a low noise transimpedance amp and corresponding PCB. Never spun out or tested. Originally intended for use with field mill E-field sensor.

Field Mill E-field Sensor

A mechanical chopper-based E-field sensor (field mill). Testing failed due to 60 Hz noise in environment.