Systeme und Verfahren zur Strommesswiderstandseinbauprüfung

Details

Veröffentlichungs-Nr.

EP3736577

Aktenzeichen

EP19210388

Anmeldetag

20. November 2019

Veröffentlichung

2. August 2023

Erteilung

2. August 2023

Rechtsraum

EP

IPC

G01R1/20G01R35/02

Abstract

A solid-state power controller (SSPC) system with a built-in-test circuit includes a SSPC field-effect transistor (FET) switch (104). The system includes a current sense resistor (106) electrically connected to the SSPC FET switch in series. A resistor (108) is electrically connected to the current sense resistor in series. A switch (110) is electrically connected to the resistor in series. A method for testing a current sense resistor value in a solid-state power controller (SSPC) system includes determining a cycle count, generating a new bit with a processing unit, and outputting the new bit to a switch operatively connected to the processing unit to at least one of turn the switch on or turn the switch off. The method includes reading a load current with the processing unit to determine whether a current sense resistor electrically coupled to the switch is operating within a desired resistance range.

Anmelder

Firma

Hamilton Sundstrand Corporation

Land

🇺🇸 USA

Fachgebiete