Differential and common mode link dampener
US12113507B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2022 |
| Grant date | Oct 8, 2024 |
| Priority date | — |
| Expiry date | Apr 10, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H7/09
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A common mode and a differential mode filter(s) between DC links are provided. Each link has a positive rail and a negative rail. The filter comprises a first inductor respectively connected to each of the positive rail and the negative rail, differential mode damping resistance connected in parallel to each of the first inductor, respectively, and a three-wire choke. The three-wire choke comprises a first wire connected in series with the differential mode damping resistance parallel to the positive rail, a second wire connected in series with the differential mode damping resistance parallel to the negative rail and a third wire connected to common mode damping resistance. The common mode damping resistance is galvanically isolated from differential mode transients flowing through the differential mode damping resistance. The differential mode filter has the differential mode damping resistance, and the common mode filter has the common mode damping resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.