Stromversorgungssystem und Verfahren zur Behandlung von Fehlern in Ungeerdeten Geräten

Details

Veröffentlichungs-Nr.

EP4583388

Aktenzeichen

EP24222028

Anmeldetag

20. Dezember 2024

Veröffentlichung

9. Juli 2025

Rechtsraum

EP

IPC

H02M1/32H02M3/335

Abstract

The present disclosure relates to a power supply system with built-in fault detection comprising: a transformer comprising a primary side and a secondary side, wherein the primary side and the secondary side are galvanically isolated and wherein an input voltage is supplied to the primary side of the transformer; one or more switching elements connected to the primary side of the transformer; a controller configured to control switching of the one or more switching elements to control an output voltage on the secondary side of the transformer; an isolation capacitor connected between the secondary side of the transformer and the primary side of the transformer; fault circuitry connected to the isolation capacitor and configured to detect a switching pattern propagated through a short circuit between the primary side and secondary side of the transformer and further propagated through the isolation capacitor. The disclosure further relates to an electrical apparatus comprising the power supply system and to a method of handling faults in a non-earthed electrical apparatus.

Anmelder

Firma

Axis AB

Land

🇸🇪 Schweden

Fachgebiete