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

Claim 14:
15. A controller configured to operate a power converter arrangement in a surge mode, wherein the surge mode occurs when a surge pulse at an input of a first power converter of the power converter arrangement causes a DC link voltage of a DC link capacitor circuit of the power converter arrangement to reach a first voltage threshold,
wherein operating the power converter arrangement in the surge mode comprises:
at least temporarily, operating the first power converter in a reverse mode to transfer energy from the DC link capacitor circuit to an input of the power converter arrangement; and
deactivating a second power converter coupled between the DC link capacitor circuit and an output of the power converter arrangement when the DC link voltage reaches the first voltage threshold,
wherein at least temporarily operating 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.