Patent ID: 11863085
Assignee: AVL LIST GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. Converter assembly for converting a DC voltage into an N-phase AC voltage or vice versa, comprising
a connected inverter unit having a number M of electronically controllable half bridges for least one, preferably for each of the N phases, wherein M is greater than one,
a control unit controlling the half bridges which is designed to activate the half bridges in a phase-offset manner with a substantially constant switching frequency fT, wherein,
to damp electrical common-mode interference, the phases are connected to a respective winding of a common-mode choke with a common magnetic core, and wherein
the outputs of the half bridges which supply the same phase are in each case interconnected via interleaving chokes,
wherein a first LC filter stage and a second LC filter stage are provided, wherein the first LC filter stage is formed by the interleaving chokes and a resistance-damped capacitor circuit, and the second LC filter stage is formed by the common-mode choke and a resistance-damped capacitor circuit.