QPT is the first company to work out and patent a set of innovations that enable high power, high voltage GaN transistors to be used in VFDs at their ultrafast frequencies and thus unlock their full potential to deliver power savings.
The key, patented innovations are called qDrive™, ZEST™, and qSense™ and they come together in our qGaN and qSensor modules. See QPT Patents. Two qGaN modules implement a half bridge that drives a single phase of a motor – three of these half bridges are used to drive a motor in a Y-configuration.
It is important to understand that these innovations come together to form a holistic, integrated approach that upgrades the VFD design to cope with having GaN transistors running at full throttle. Otherwise, it would be like bolting a jet engine onto a standard car!