Patents by Inventor Fang Sheng-Hsien

Fang Sheng-Hsien 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).

  • System and method for limiting losses in an uninterruptible power supply
    Patent number: 8450876
    Abstract: Aspects of the invention are directed to systems and method for limiting losses in an uninterruptible power supply. In one aspect, the present invention provides an uninterruptible power supply (UPS) comprising an input to receive input power having an input voltage, an output to provide output power having an output voltage, a neutral line, an automatic voltage regulation (AVR) transformer coupled to the input and the output of the UPS and having an input, an output, a core and at least one switch controllably coupled to at least one of the core, the input and the output, and a means for isolating the core of the AVR transformer from the neutral line when the input voltage is substantially equal to a defined output voltage.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: May 28, 2013
    Assignee: Schneider Electric IT Corporation
    Inventors: Fred William Rodenhiser, Vishwas Mohaniraj Deokar, Namwook Paik, Fang Sheng-Hsien
  • SYSTEM AND METHOD FOR LIMITING LOSSES IN AN UNINTERRUPTIBLE POWER SUPPLY
    Publication number: 20130002029
    Abstract: Aspects of the invention are directed to systems and method for limiting losses in an uninterruptible power supply. In one aspect, the present invention provides an uninterruptible power supply (UPS) comprising an input to receive input power having an input voltage, an output to provide output power having an output voltage, a neutral line, an automatic voltage regulation (AVR) transformer coupled to the input and the output of the UPS and having an input, an output, a core and at least one switch controllably coupled to at least one of the core, the input and the output, and a means for isolating the core of the AVR transformer from the neutral line when the input voltage is substantially equal to a defined output voltage.
    Type: Application
    Filed: July 2, 2012
    Publication date: January 3, 2013
    Applicant: AMERICAN POWER CONVERSION CORPORATION
    Inventors: Fred William Rodenhiser, Vishwas Mohaniraj Deokar, Namwook Paik, Fang Sheng-Hsien
  • System and method for limiting losses in an uninterruptible power supply
    Patent number: 8212402
    Abstract: Aspects of the invention are directed to systems and method for limiting losses in an uninterruptible power supply. In one aspect, the present invention provides an uninterruptible power supply (UPS) comprising an input to receive input power having an input voltage, an output to provide output power having an output voltage, a neutral line, an automatic voltage regulation (AVR) transformer coupled to the input and the output of the UPS and having an input, an output, a core and at least one switch controllably coupled to at least one of the core, the input and the output, and a means for isolating the core of the AVR transformer from the neutral line when the input voltage is substantially equal to a defined output voltage.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: July 3, 2012
    Assignee: American Power Conversion Corporation
    Inventors: Fred William Rodenhiser, Vishwas Mohaniraj Deokar, Namwook Paik, Fang Sheng-Hsien
  • SYSTEM AND METHOD FOR LIMITING LOSSES IN AN UNINTERRUPTIBLE POWER SUPPLY
    Publication number: 20100188066
    Abstract: Aspects of the invention are directed to systems and method for limiting losses in an uninterruptible power supply. In one aspect, the present invention provides an uninterruptible power supply (UPS) comprising an input to receive input power having an input voltage, an output to provide output power having an output voltage, a neutral line, an automatic voltage regulation (AVR) transformer coupled to the input and the output of the UPS and having an input, an output, a core and at least one switch controllably coupled to at least one of the core, the input and the output, and a means for isolating the core of the AVR transformer from the neutral line when the input voltage is substantially equal to a defined output voltage.
    Type: Application
    Filed: January 27, 2009
    Publication date: July 29, 2010
    Applicant: American Power Conversion Corporation
    Inventors: Fred William Rodenhiser, Vishwas Mohaniraj Deokar, Namwook Paik, Fang Sheng-Hsien