Kurzschluss-Schutzschaltung

Details

Veröffentlichungs-Nr.

EP4733776

Anmeldetag

13. Oktober 2025

Veröffentlichung

29. April 2026

Rechtsraum

EP

Abstract

Embodiments of the present disclosure provides a short-circuit protection circuit, including: a sampling resistor connected to a main loop, a parasitic inductance of the sampling resistor being adapted to generate an inductive signal based on a current in the main loop; a clamping circuit clamping a voltage of the inductive signal to a first threshold voltage to provide a clamping signal; a first compensation rectification circuit and a second compensation rectification circuit adapted to perform power factor compensation and rectification on the clamping signal to convert the clamping signal into an intermediate signal having a predetermined waveform; and an output circuit connected to the first compensation rectification circuit and the second compensation rectification circuit to receive the intermediate signal, and adapted to generate an output signal in response to a voltage of the intermediate signal being greater than a second threshold voltage to indicate that the main loop is short-circuited.

Anmelder

Firma

SCHNEIDER ELECTRIC INDUSTRIES SAS

Land

🇫🇷 Frankreich