Stromdetektor-Leerlauferfassung in einem Mehrphasigen Abwärtsspannungsregler

Details

Veröffentlichungs-Nr.

EP3605118

Aktenzeichen

EP19188280

Anmeldetag

25. Juli 2019

Veröffentlichung

7. September 2022

Erteilung

7. September 2022

Rechtsraum

EP

IPC

G01R31/42G01R31/54H02M3/158

Abstract

A multiphase voltage regulator includes a plurality of power stages (108), a plurality of current sense circuits (118), a controller (104) and a current sense interface (120) running between the controller (104) and one or more of the current sense circuits (118). The current sense interface (120) includes a separate line (122) for each current sense circuit (118) coupled to the current sense interface (120) and which is configured to support single-ended or differential current sense. The regulator also includes a plurality of pullup circuits (124), each of which is connected to one of the current sense interface lines (122) and has a higher impedance than the line to which it is connected. A fault detection circuit (126) of the controller determines if an individual one of the current sense interface lines (122) has an open fault, based on the pullup circuit (124) connected to the line with the open fault pulling up the voltage on the line (122) by more than a predetermined amount.

Anmelder

Firma

Infineon Technologies Austria AG

Land

🇦🇹 Österreich

Fachgebiete