Legacy designs often fail to include PFC and where it is included it is often designed as a flyback PFC with bridge rectifier
Our single phase VFD takes a bridgeless approach using just 10 power transistors to realize highly effective motor drives with 110-220VAC inputs
Isolated single phase VFD takes a unique monoblock approach combining the features of PFC, SMPS and motor driver into a single system with just one primary inductor, this unique approach dramatically cuts the number of active devices in the power path, leading to a far more efficient unit
Three phase direct drives combine triple inductor PFC with an inductorless motor switch design to realize the shortest power paths of any motor driver with PFC
In three phase direct drive, the PFC block is required to handle just 20% of the motive load power yielding high efficiency in a small package
Three phase direct drive VFD can buck regulate the voltage supplied to the motor but are unable to boost regulate the voltage
We have an alternate design for three phase direct drive which is buck boost regulating however the PFC section handles the entire motor power and it has larger capacitors
Three phase isolated drive is a monoblock build without the normal bulk capacitors used by traditional approaches, in our design the capacitors serve as EMI filters only
This unique approach allows us to increase reliability & efficiency while reducing size, weight and cost for the equivalent capacity
Three phase isolated drive are regulating, capable of wide input supply voltage

With our isolated drive technology, due to commonality of some circuitry with our inverter/chargers, we have the ability to provide a battery interface for off-grid and critical systems

As our designs focus on symmetric bidirectional capability, all motor controllers utilize active brake technology allowing for significant energy recovery
We do not use wasteful brake resistors