Patents by Inventor Mahendrakumar Lipare

Mahendrakumar Lipare 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).

  • Single-battery power topologies for online UPS systems
    Patent number: 9024476
    Abstract: A power converter includes a first power input to receive AC input power, a second power input to receive backup power, a first DC bus configured to provide a positive DC output voltage, a second DC bus configured to provide a negative DC output voltage, and a power conversion circuit coupled to the first DC bus and the second DC bus. The power conversion circuit has an inductor, a first switch device coupled in series with the inductor, a second switch device coupled in series with the first switch device, and a bypass relay coupled in parallel with the second switch device. The power conversion circuit is switchably coupled to the first power input and the second power input, and is operable to charge the inductor and generate the positive and negative DC output voltages.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: May 5, 2015
    Assignee: Schneider Electric IT Corporation
    Inventors: Rajesh Ghosh, Mahendrakumar Lipare, Damir Klikic
  • SINGLE-BATTERY POWER TOPOLOGIES FOR ONLINE UPS SYSTEMS
    Publication number: 20130026835
    Abstract: A power converter includes a first power input to receive AC input power, a second power input to receive backup power, a first DC bus configured to provide a positive DC output voltage, a second DC bus configured to provide a negative DC output voltage, and a power conversion circuit coupled to the first DC bus and the second DC bus. The power conversion circuit has an inductor, a first switch device coupled in series with the inductor, a second switch device coupled in series with the first switch device, and a bypass relay coupled in parallel with the second switch device. The power conversion circuit is switchably coupled to the first power input and the second power input, and is operable to charge the inductor and generate the positive and negative DC output voltages.
    Type: Application
    Filed: July 28, 2011
    Publication date: January 31, 2013
    Applicant: AMERICAN POWER CONVERSION CORPORATION
    Inventors: Rajesh Ghosh, Mahendrakumar Lipare, Damir Klikic