Patent · US Active

Devices and methods for voltage supply monitoring

US11422201B1 · kind B1 · utility

2Cited by

2References

20Claims

0Family size

Assignee

NXP USA, Inc. · US

Inventors

Sebastian Raschbacher · Treuchtlingen, DE
Hubert M. Bode · Haar, DE
Mark Lehmann · Munich, DE
Xianghua Shen · Unterhaching, DE

Key dates

Filing date	Mar 18, 2021
Grant date	Aug 23, 2022
Priority date	—
Expiry date	Mar 18, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG05F1/46
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An integrated circuit, can comprise a first power supply terminal configured to supply a first voltage, a second power supply terminal configured to supply a second voltage, a first supply monitor including a detector having a first input and a second input, and configured to provide a fault indicator based on a comparison between the first and second inputs, and switching circuitry configured to during a normal operating mode, couple a voltage derived from the first voltage to the first input and a voltage derived from the second voltage to the second input, and during a self-test mode, couple the voltage derived from the second voltage to the first input and the voltage derived from the first voltage to the second input.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.