hello gyus i want to design an AC motor controller using PWM with an 220V input at 60hz. do you have any circuit relating to this problem? the flow chart as far as i study goes like this from the AC source 220V goes down to a converter that will convert AC to DC signal down to the PWM circuit then PWM Ckt is connected to an inverter that will invert DC to AC signal then an AC motor 220V input will be connected. i have already consulted someone about this and it is possible. i'm also planing to put an error correction on this to so that the Voltage reading really matches the RPM of the motor. can anyone help me with this? its for my project design in our class. thanks guys.