Patent ID: 11867771
Assignee: INFINEON TECHNOLOGIES AG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 20:
21. A method for detecting an arc, the method comprising:
applying a first wavelet transformation with a first mother wavelet to a chronological sequence of current measurements of a current through a lead, to obtain first wavelet coefficients,
applying a second wavelet transformation with a second mother wavelet different from the first mother wavelet to the chronological sequence of current measurements to obtain second wavelet coefficients, and
determining whether an arc is present based on the first wavelet coefficients and the second wavelet coefficients, wherein the method further comprises:
carrying out the method multiple times for a plurality of sequences of current measurements; and
determining definitively whether the arc is present based on multiple repetitions of the method, wherein a final determination is based on a majority vote.