Patents by Inventor Pyboyina Prasad

Pyboyina Prasad has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • UPS frequency converter and line conditioner
    Patent number: 7881079
    Abstract: Systems and methods disclosed herein monitor and control input to a converter in one or more of a UPS, a frequency converter, or a line conditioner. Distortion due at least in part to ripple voltage can be removed from a control signal that controls input current to the converter. The systems and methods described herein afford a simple and effective way to reduce or eliminate one or more of subharmonic oscillation and total harmonic distortion from a converter input current during synchronous and asynchronous modes of operation. The converter may include one or more of a rectifier and an inverter.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: February 1, 2011
    Assignee: American Power Conversion Corporation
    Inventors: Pyboyina Prasad, Rajesh Ghosh, Damir Klikic
  • UPS FREQUENCY CONVERTER AND LINE CONDITIONER
    Publication number: 20090237963
    Abstract: Systems and methods disclosed herein monitor and control input to a converter in one or more of a UPS, a frequency converter, or a line conditioner. Distortion due at least in part to ripple voltage can be removed from a control signal that controls input current to the converter. The systems and methods described herein afford a simple and effective way to reduce or eliminate one or more of subharmonic oscillation and total harmonic distortion from a converter input current during synchronous and asynchronous modes of operation. The converter may include one or more of a rectifier and an inverter.
    Type: Application
    Filed: March 24, 2008
    Publication date: September 24, 2009
    Inventors: Pyboyina Prasad, Rajesh Ghosh, Damir Klikic