Leistungsvorrichtungssystem

Details

Veröffentlichungs-Nr.

EP4737918

Anmeldetag

29. Oktober 2024

Veröffentlichung

6. Mai 2026

Rechtsraum

EP

IPC

G01R31/26, H03K17/18

Abstract

A power device system (100) comprising: a power device (101) and a controller (102), the power device (101) comprising: a power switch (103); and a control terminal driver (104), and wherein the power device (101) is configured to operate in both a ramp-up and ramp-down diagnostic mode in which the control terminal driver (104) is respectively configured to: apply a test current at the first node of the conduction channel (105) of the power switch (103); apply a first driver voltage that is less than or greater than the threshold voltage at control terminal (106) of the power switch (103); increase or decrease, respectively, the first driver voltage until a voltage drop or voltage increase, respectively is detected; and measure the first driver voltage at which the voltage drop is detected as a ramp-up threshold voltage or ramp-down threshold voltage, respectively, wherein the controller (102) is configured to determine a state of health of the power switch (101) based on the ramp-up threshold voltage and the ramp-down threshold voltage.

Anmelder

Firma

NXP USA, Inc.

Land

🇺🇸 USA