Patent ID: 11916472
Assignee: INFINEON TECHNOLOGIES AUSTRIA AG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method, comprising:
operating a power converter arrangement in a surge mode, wherein the power converter arrangement comprises: a first power converter comprising an input and an output; a second power converter comprising an input and an output; and a DC link capacitor circuit coupled to the output of the first power converter and the input of the second power converter and providing a DC link voltage, wherein the surge mode occurs when a surge pulse at the input of the first power converter causes the DC link voltage to reach a first voltage threshold,
wherein operating the power converter arrangement in the surge mode comprises:
deactivating the second power converter when the DC link voltage reaches the first voltage threshold; and
operating, at least temporarily, the first power converter in a reverse mode to transfer energy from the DC link capacitor circuit to the input of the first power converter,
wherein operating, at least temporarily, the first power converter in the reverse mode comprises:
deactivating the first power converter when the DC link voltage reaches the first voltage threshold; and
operating the first power converter in the reverse mode when the surge pulse has decayed.