Schutzschaltung

Details

Veröffentlichungs-Nr.

EP3694108

Aktenzeichen

EP20154525

Anmeldetag

30. Januar 2020

Veröffentlichung

28. Dezember 2022

Erteilung

28. Dezember 2022

Rechtsraum

EP

IPC

H03K19/003

Abstract

A circuit including a device (fig. 2: 104) including a first and second node (fig. 2: P or P_internal, N or N_internal; fig. 3: Boost, Drop). The device operating in at least an enabled mode and a disabled mode. The circuit including a voltage control circuit (fig. 2: 202, 204; fig. 3: 300). The voltage control circuit (fig. 3: 300) including a current source (322) for sourcing current to or sinking current (326) from the first node during the disabled mode and a voltage difference detector (302) including an output (Vo1) for providing an indication of a measured voltage difference between the first node (fig. 2, 3: HVN) and the second node (fig. 2, 3: LVN). The voltage control circuit includes a current source control circuit (304) including a first input (V+) to receive the indication of the measured voltage difference (Vo1) and an output (Vo2) to control current sourced (322) to or sinked (326) from the first node by the current source to limit a voltage difference between the first and second node (fig. 3: HVN, LVN) based on a comparison (304) between the indication of the measured voltage difference (Vo1) and an indication of a target voltage difference (V1).

Anmelder

Firma

NXP USA, Inc.

Land

🇺🇸 USA

Fachgebiete