admin 6 Report post Posted May 11, 2017 This topic is to clarify the specs of T1 transformer used in http://www.electronics-lab.com/project/power-supply-brushless-motor-drivers/ T1 is a Standard EMI/RFI Transformer for electromagnetic noise, any 15/16mm transformer with 1mH inductance will work. This transformer is used to reduce EMI/RFI noise and doesn't provide isolation from mains voltage. I am attaching here the datasheet of the transformer. pmcu.pdf Share this post Link to post Share on other sites