Active LC filter damping circuit with galvanic isolation
US7535303B1 · kind B1 · utility
0Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2006 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Aug 1, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/541
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for providing electrical power through two terminals to a load wherein a portion of a LC filter circuit is connectable to each of the terminals. A feedback circuit having a sense capacitor is operably couplable to both portions of the LC output filter. The feedback circuit provides a feedback signal when a frequency of AC voltage across the sense capacitor substantially reaches the resonant frequency of the LC output filter so as to actively damp the voltage across the load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.