Patent ID: 9479105
Filing Date: 2016-10-25
CPC Classification: G01R,H02M,H02P,H04B

Claim Text:
1. A poly-phase motor drive comprising: an input filter having a poly-phase filter input and a poly-phase filter output, wherein the input filter includes a high-frequency common mode inductor connected to the poly-phase filter input, a plurality of common mode filter components connected to the high-frequency common mode inductor, and a differential mode damped inductive capacitance filter interconnected with the common mode filter components; an active rectifier including a boost inductor, the active rectifier is connected to the filter output and has a DC output; a motor drive inverter connected to the DC output, the motor drive inverter having a poly-phase motor control output; wherein the differential mode filter is a T-type LC filter; wherein the common mode filter components include a high frequency common mode inductor and are connected to a first shunt-type notch filter; and wherein the common mode filter further comprises a first common mode choke inductor and a second common mode choke inductor, wherein said first common mode choke inductor has a first core material and said second common mode choke inductor has a second core material.