Diagnoseverfahren mit Kurzgeschlossenem Schalter

Details

Veröffentlichungs-Nr.

EP4328603

Aktenzeichen

EP23156901

Anmeldetag

15. Februar 2023

Veröffentlichung

31. Juli 2024

Erteilung

31. Juli 2024

Rechtsraum

EP

IPC

G01R31/42G01R31/52G01R31/327

Abstract

A switch short-circuited diagnosis method includes steps of: determining an initial voltage interval of multiple voltage intervals according to voltage relationships of voltages of a first phase wire, a second phase wire, and a third phase wire; performing a switch short-circuited diagnosis of a first bidirectional switch module (11) in the three consecutive voltage intervals from the initial voltage interval, and including steps of: turning on a first switch branch, a second switch branch, or a third switch branch of the first bidirectional switch module (11) according to relationships of the voltage of the first phase wire, the voltage of the second phase wire, and the voltage of the third phase wire, determining whether an overcurrent occurs to diagnose whether the first switch branch, the second switch branch, or the third switch branch of the first bidirectional switch module (11) is in a short-circuited state, and performing the switch short-circuited diagnosis for the next voltage interval.

Anmelder

Firma

Delta Electronics, Inc.

Land

🇹🇼 Taiwan

Fachgebiete