Hi @TomGeorge ,
Thanks for info.
Phase-to-phase voltage is 24 Vpp (so amplitude 12 V). See below a screenshot of a simulation.
I need to be able to measure currents in the range [-3.2, 3.2] A.
I'm not using Arduino, but an STM32 NUCLEO-G431RB board. I actually posted my question in another topic on this forum, because I was curious if the solution provided there would work for my application (A simple circuit to measure AC current using INA219 - #8 by jim-p). This new topic was created by OP.
The hardware setup is basically the P-NUCLEO-IHM03 from ST: https://www.st.com/en/evaluation-tools/p-nucleo-ihm03.html. The difference being that I'm using a different motor (CubeMars GL40 KV70) and I want to use separate current sensors for extended current range measurement capability (the method provided by ST in their package is based on shunt resistors on the low-side MOSFETs, can only measure currents up to about 1.5A).
I want to implement my own algorithm. I'm using the STM32 Cube IDE with C programming.
Thanks.