Patent · US Active

Methods and devices for detecting an electrical arc

US11867771B2 · kind B2 · utility

0Cited by

0References

21Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Felix Kaiser · Munich, DE
Christoph Grund · Munich, DE
Goran Keser · Munich, DE
Christopher Roemmelmayer · Munich, DE

Key dates

Filing date	Jan 31, 2022
Grant date	Jan 9, 2024
Priority date	—
Expiry date	Apr 18, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG01R31/52
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Methods and devices for detecting electrical arcs are provided. A first wavelet transformation with a first mother wavelet is applied to a chronological sequence of current measurements (80) of a current through a lead, to obtain first wavelet coefficients. In addition, a second wavelet transformation with a second mother wavelet different from the first mother wavelet is applied to the chronological sequence in order to obtain second wavelet coefficients. On the basis of the first wavelet coefficients and the second wavelet coefficients, it is then determined whether an arc (10; 11; 24) is present.

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