Drivers for UPS

It is a common misconception that most power MOSFETs or IGBTs can be driven directly from a logic circuit or microcontroller. The reality is that most of these high-power transistors require current and voltage levels that far exceed the capacity of control electronics. Essentially, a gate driver is a power amplifier which serves as an interface between a low-power PWM signal and the gate of an IGBT/MOSFET transistor.