Monitoring non-uniform capacitor and IGBT degradation with current sensors
US11428750B1 · kind B1 · utility
2Cited by
11References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2020 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Jun 3, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/2642
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods of detecting non-uniform aging and degradation of power assembly units are disclosed. The system may include a first power assembly unit and a second power assembly unit adjacent to the first power assembly unit. Each of the first and second power assembly units has a coupling capacitor and a number of electrical components. The system may further include a current sensor in between the coupling capacitors of the first and second power assembly units to detect a current spike in the coupling capacitors and the electrical components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.