Multi-level active filter

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7405498
APP PUB NO 20070109823A1
SERIAL NO

11435181

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A multi-phase active filter includes a group of power cells electrically connected in a three-phase configuration, a precharging circuit, and a controller that controls the voltage delivered to the plurality of power cells. Each power cell includes an inverter having a pair of direct current (DC) terminals, at least one capacitor electrically connected in parallel with the inverter, and an energy dissipating circuit that is electrically connected in parallel with the inverter. The energy dissipating circuit of each power cell self-regulates DC voltage within the cell.

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Patent Owner(s)

Patent OwnerAddress
SIEMENS ENERGY & AUTOMATION INC3333 OLD MILTON PARKWAY ALPHARETTA GA 30202

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hammond, Peter Greensburg, PA 26 379
Rastogi, Mukul Monroeville, PA 23 545
Simms, Stan Delmont, PA 2 14

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Patent Citation Ranking

  • 3 Citation Count
  • H02J Class
  • 3.87 % this patent is cited more than
  • 17 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges78335208103241801 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8091 - 100100 +051015202530354045505560657075808590

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