CurrentTransformerWithCallbacks

Coil, Current Transformer (CT) based AC current measurements using fast ADC sampling of waveform

Author
dirkx-currentcoil@webweaving.org
Website
https://github.com/dirkx/CurrentTransformerWithCallbacks
Category
Signal Input/Output
License
Apache 2.0
Library Type
Contributed
Architectures
esp32

Mesure currents, iRMS and similar with a current transformer or coil. Requires a simple bias circuit that ensures that the votlages fed to the ADC is swinging around a certain dc-offset; and this is then ran through a resistor to turn the current into a voltage. Actual curernt measurement is then made by fast sampling the waveform. Assumes relatively slow AC curernts (few 100Hz), such as typical household mains power supplies (50hz, 60hz)

Downloads

Filename Release Date File Size
CurrentTransformerWithCallbacks-2.0.0.zip 11.70 KiB
CurrentTransformerWithCallbacks-1.0.0.zip 2019-01-06 11.70 KiB