Patent ID: 8325500
Filing Date: 2012-12-04
Classification: H02M

Abstract:
1. An inverter filter for a plurality of phases output by an inverter, said inverter filter comprising: a node; a differential mode filter comprising for each of said plurality of phases output by said inverter: a third terminal which is grounded; and a common mode filter comprising: wherein said differential mode filter is selected from the group consisting of a sine filter and a dV/dt filter, wherein said first capacitor is electrically connected between said second terminal and said node, wherein said plurality of phases are three phases, wherein the inductor for each of said three phases has an inductance, Lf, wherein said three phases include three inductors having a common mode inductance, Lcm, wherein said three inductors form a three-phase, three-leg iron core reactor, and wherein said three phases have a low voltage and 0.05*Lf<Lcm<0.07*Lf, or said three phases have a medium voltage and 0.1*Lf<Lcm<0.22*Lf.