Patent · US Active

Circuit containing a transformer and corresponding method

US11841394B2 · kind B2 · utility

0Cited by

3References

17Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Marcus Nuebling · Olching, DE
Jaafar Mejri · Ottobrunn, DE

Key dates

Filing date	Oct 12, 2020
Grant date	Dec 12, 2023
Priority date	—
Expiry date	Apr 8, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH03K17/56
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A circuit is provided, comprising a transformer having a first coil that is arranged on a substrate and a second coil that is arranged on the substrate above the first coil, and a dielectric between the first coil and the second coil. The circuit furthermore comprises a guard ring around the transformer. The circuit furthermore comprises a diagnostic circuit (55) that is configured so as to ground the guard ring in a normal operating mode and to measure a measurement voltage or a measurement current at a measurement impedance between the guard ring and the ground potential in a diagnostic operating mode.

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