HOW MUCH YOU NEED TO EXPECT YOU'LL PAY FOR A GOOD VFD CONTROL PANEL

The DC voltage is then synthesized back into three-period AC output voltage by way of a number of switches or transistors. The most common ones in use today are insulated gate bipolar transistors (IGBT). These rapid switching IGBTs are operated quickly to make a sq. wave making use of pulse width modulation (PWM).This is referred to as Pulse Width