Adaptive Strombegrenzer

Details

Veröffentlichungs-Nr.

EP4749861

Anmeldetag

26. November 2025

Veröffentlichung

27. Mai 2026

Rechtsraum

EP

IPC

H02H9/02, H02H3/00

Abstract

In one embodiment, an adaptive current limiter includes at least one solid-state switch, a voltage clamping circuit, a current sense circuit, and a control circuit. The solid-state switch is configured to selectively enable and disable a current path through the solid-state switch. The voltage clamping circuit is in parallel with the solid-state switch. The current sense circuit is configured to determine a magnitude of a fault current though the current path and a rate of change (di/dt) of the fault current. The control circuit is configured to operate the solid-state switch to selectively enable and disable the current path to maintain the magnitude of the fault current at I_peak within an upper current band and the magnitude of the fault current at I_valley within a lower current band, and modify the upper current band and/or the lower current band based on the di/dt of the fault current.

Anmelder

Firma

ABB SCHWEIZ AG

Land

🇨🇭 Schweiz