A SECRET WEAPON FOR VFD PANEL

But, if we lessen the frequency to 30Hz, then we must also lessen the voltage to 240V so that you can retain the V/Hz ratio. How are we gonna reduce the voltage if the only voltage Now we have is 650VDC?This is called Pulse Width Modulation or PWM. Visualize that we could control the force in a very drinking water line by turning the valve on and o