Patent ID: 7880088

Claim:
A power electronic switching device comprising: power electronic switching circuitry on a first side of a support, the power electronic switching circuitry having a plurality of terminals; first and second conductors coupled directly to the terminals of the switching circuitry; an energy storage or filtering circuit on a second side of the support, the energy storage or filtering circuit having a plurality of terminals; and an electrical bus system comprising a first conductive bus element defining a first electrical reference plane extending substantially contiguously between the first conductor and the terminals for the energy storage or filtering circuit, a second conductive bus element defining a second electrical reference plane extending substantially contiguously between the second conductor and the terminals for the energy storage or filtering circuit, and at least one insulative layer disposed intermediate the first and second bus elements to electrically isolate the elements from one another, wherein the first and second bus elements extend generally in parallel with one another between the respective conductors and terminals, and wherein the electrical bus system is disposed along an edge of the support between the first and second sides.