Method and apparatus for dual notch ripple filtering
US9893705B2 · kind B2 · utility
0Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2014 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Dec 28, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2007/013
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a self-coupled transformer, a first band stop filter and a tank circuit connected in series with the first band stop filter between first and second windings of the self-coupled transformer. An inductor of the tank circuit acts as an out-of-phase third winding of the self-coupled transformer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.