Bidirektionale Strombegrenzungsschaltung

Details

Veröffentlichungs-Nr.

EP4797473

Anmeldetag

21. Januar 2026

Veröffentlichung

26. August 2026

Rechtsraum

EP

IPC

H02H3/087, H02H9/02, H02M1/32

Abstract

The disclosure relates to bidirectional current limiting circuits for use in aircraft electric power distribution system and methods for operating such bidirectional current limiters. A bidirectional current limiting circuit (400) comprises first and second parallel current paths (401, 402) connected between first and second terminals (403, 404), the first current path (401) comprising a first current limiting device (405) connected in series with a measurement inductor (406), the second current path (402) comprising a damping resistor (407) in series with a second current limiting device (408), wherein the first current limiting device is a first JFET (405), the circuit (400) further comprising a controller (409) connected to a gate of the first JFET (405), the controller (409) connected to receive a voltage measurement across the measurement inductor (406) and provide a first gate voltage to the first JFET (405) to restrict current through the first path (401) if the voltage measurement exceeds a voltage threshold.

Anmelder

Firma

Rolls-Royce plc

Land

🇬🇧 Großbritannien

Fachgebiete