Schaltung und Verfahren zur Versorgungsspannungs-Störsignaldetektion

Details

Veröffentlichungs-Nr.

EP4711965

Anmeldetag

26. September 2024

Veröffentlichung

18. März 2026

Rechtsraum

EP

IPC

(HEO DONGHUN et al.)

Abstract

A glitch detection circuit (200) is arranged detect a glitch on a digital supply (150) and comprises a glitch sense threshold generator (132), a path delay circuit (133) comprising two parallel paths, wherein the first path provides a first output of a slow signal path of the digital supply to be detected that is used as a positive glitch threshold signal (530) and the second path provides a second output of a slow signal path of the digital supply to be detected that is used as a negative glitch threshold signal (540). A comparator circuit (134) is arranged to compare the digital supply to be detected with the first output of a slow signal path and the second output of a slow signal path; wherein the output of the comparator circuit indicates a power glitch on the digital supply in response to the positive or negative glitch threshold signals.

Anmelder

Firma

NXP B.V.

Land

🇳🇱 Niederlande