Patents by Inventor Yuyu Qiao

Yuyu Qiao 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).

  • Flexible rectifier for providing a variety of on-demand voltages
    Patent number: 10790760
    Abstract: A dual voltage power system for selectively providing direct current (DC) at two different voltages. The system includes a plurality of universal rectifiers each of which may be configured to operate under a plurality of operating modes using a plurality of switches which may be controlled by a power shelf controller.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: September 29, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Pedro Angel Fernandez, Bing Cai, Yuyu Qiao
  • Flexible rectifier for providing a variety of on-demand voltages
    Patent number: 9712073
    Abstract: An apparatus comprising a first rectifier, wherein an output of the first rectifier is coupled to a first terminal, a second rectifier, wherein an output of the second rectifier is coupled to a second terminal, a first electronic switch configured to selectively route an alternating current (AC) signal to the first rectifier or the second rectifier, an inverter configured to operate in the event that the first electronic switch does not receive the AC signal to receive a direct current (DC) signal, and convert the DC signal to a second AC signal, a second electronic switch configured to selectively route the DC signal from the first terminal or the second terminal to the inverter, and a third electronic switch configured to selectively route the second AC signal to the first rectifier or the second rectifier.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: July 18, 2017
    Assignee: Futurewei Technologies, Inc.
    Inventors: Pedro Angel Fernandez, Bing Cai, Yuyu Qiao
  • Flexible Rectifier for Providing a Variety of On-Demand Voltages
    Publication number: 20170133944
    Abstract: A dual voltage power system for selectively providing direct current (DC) at two different voltages. The system includes a plurality of universal rectifiers each of which may be configured to operate under a plurality of operating modes using a plurality of switches which may be controlled by a power shelf controller.
    Type: Application
    Filed: January 26, 2017
    Publication date: May 11, 2017
    Inventors: Pedro Angel Fernandez, Bing Cai, Yuyu Qiao
  • Flexible Rectifier for Providing a Variety of On-Demand Voltages
    Publication number: 20140070611
    Abstract: An apparatus comprising a first rectifier, wherein an output of the first rectifier is coupled to a first terminal, a second rectifier, wherein an output of the second rectifier is coupled to a second terminal, a first electronic switch configured to selectively route an alternating current (AC) signal to the first rectifier or the second rectifier, an inverter configured to operate in the event that the first electronic switch does not receive the AC signal to receive a direct current (DC) signal, and convert the DC signal to a second AC signal, a second electronic switch configured to selectively route the DC signal from the first terminal or the second terminal to the inverter, and a third electronic switch configured to selectively route the second AC signal to the first rectifier or the second rectifier.
    Type: Application
    Filed: July 31, 2013
    Publication date: March 13, 2014
    Applicant: Futurewei Technologies, Inc.
    Inventors: Pedro Angel Fernandez, Bing Cai, Yuyu Qiao