Shared Projects by AnalogGuy

https://github.com/JRG-Analog/BUFFER2025 A high current open loop buffer Board is designed to use 40x40x100mm aluminum heatsink, with 40mm square fan for cooling.

Description: The circuit is an open loop buffer, that is, no feedback. Phase shift induced by load impedance does not affect stability. This was originally built to test PSRR on devices which require an input capacitor, but it can be used for many other experiments.

Performance: IOUT ±10A; BW 60MHz, rl = 0.5Ω, 1VRMS, +8V/-3V; ZOUT = 250mΩ

An adjustable current load 100µA to 10A. Named Larry Load for its originator, it is designed to fit in a 1590XX enclosure. See documentation at github/JRG-Analog/Larry_Load_2025

This is a battery powered test fixture which converts the voltage or impedance seen at its inputs to an audible tone, about 200Hz to 1.6kHz. Power comes from three AAA batteries, and the unit turns itself off an on automatically. Power consumption in standby is TBDµA, and when making a 200Hz tone the current is TBDmA. With 20 minutes of use per day, 5 days per week, 50 weeks per year, the batteries should last TBD years, but of course the batteries' self-discharge will likely force their replacement within a few years.