This project is about how to make a Variable Frequency Drive for 3 phase squirel cage motors from old OSAKA Air Conditioner
For the project I used arduino Nano board A328p and IPM50 IGBT board from old OSAKA AC - the main part in this board is MITSIBISHI PM50CTJ060-3 IGBT MODULE.
This device is far away from such industrial devices but it works pretty well and can be used for educational purposes.
Wiring diagram is here: VFD_from_old_osaka_ac
Link to youtube video is here: https://youtu.be/at4nRa6RnJ0