Patents by Inventor Narender Reddy Katukuri

Narender Reddy Katukuri 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).

  • Control of four-leg transformerless uninterruptible power supply
    Patent number: 8093746
    Abstract: A system and method for managing a 4 leg transformerless Uninterrupted Power Supply is disclosed. The system comprises a 3 leg inverter modulation signal generator that applies signals to a modulation circuit that generates a 4th leg modulation signal based on the applied 3 leg inverter modulation signal characteristics. The determined 4th modulation signal modifies the 3 leg inverter modulation signals and rectifier modulation signals, which are applied to corresponding inverter and rectifier sections of an Uninterruptible Power Supply.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: January 10, 2012
    Assignee: General Electric Company
    Inventors: Krishna Murali Dora, Silvio Colombi, Prabhakar Krishna Nerella, Narender Reddy Katukuri, Yashomani Y. Kolhatkar
  • CONTROL OF FOUR-LEG TRANSFORMERLESS UNINTERRUPTIBLE POWER SUPPLY
    Publication number: 20110141783
    Abstract: A system and method for managing a 4 leg transformerless Uninterrupted Power Supply is disclosed. The system comprises a 3 leg inverter modulation signal generator that applies signals to a modulation circuit that generates a 4th leg modulation signal based on the applied 3 leg inverter modulation signal characteristics. The determined 4th modulation signal modifies the 3 leg inverter modulation signals and rectifier modulation signals, which are applied to corresponding inverter and rectifier sections of an Uninterruptible Power Supply.
    Type: Application
    Filed: December 16, 2009
    Publication date: June 16, 2011
    Inventors: Krishna Murali Dora, Silvio Colombi, Prabhakar Krishna Nerella, Narender Reddy Katukuri, Yashomani Y. Kolhatkar