Patents by Inventor Linus Sheng

Linus Sheng 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).

  • Charge pump
    Patent number: 9531262
    Abstract: This application discusses, among other things apparatus and methods for a voltage boost circuit. In an example, a voltage boost circuit can include first and second inverters, sharing a first supply node, and sharing a second supply node, a first charge transfer capacitor, configured to couple a first clock signal to the first inverter output, a second charge transfer capacitor, configured to couple a second clock signal to the second inverter output, the second clock signal being out-of-phase with the first clock signal, a first gate drive capacitor, configured to couple the first clock signal to the second inverter input, and a second gate drive capacitor, configured to couple the second clock signal to the first inverter input.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: December 27, 2016
    Assignee: Analog Devices Global
    Inventors: Roger Peppiette, Yanfeng Lu, Bin Shao, Linus Sheng
  • CHARGE PUMP
    Publication number: 20150194879
    Abstract: This application discusses, among other things apparatus and methods for a voltage boost circuit. In an example, a voltage boost circuit can include first and second inverters, sharing a first supply node, and sharing a second supply node, a first charge transfer capacitor, configured to couple a first clock signal to the first inverter output, a second charge transfer capacitor, configured to couple a second clock signal to the second inverter output, the second clock signal being out-of-phase with the first clock signal, a first gate drive capacitor, configured to couple the first clock signal to the second inverter input, and a second gate drive capacitor, configured to couple the second clock signal to the first inverter input.
    Type: Application
    Filed: January 3, 2014
    Publication date: July 9, 2015
    Applicant: Analog Devices Technology
    Inventors: Roger Peppiette, Yanfeng Lu, Bin Shao, Linus Sheng
  • Charge transfer apparatus and method
    Patent number: 8860500
    Abstract: An apparatus for transferring charge has a first charge pump path with a plurality of stages having first capacitors, and a second charge pump path, also with a plurality of stage having second capacitors, in parallel with the first charge pump path. The first and second charge pump paths are coupled to share a common output node. The apparatus also has a timing circuit coupled with the first and second charge pump paths. Among other things, the timing circuit is configured to cause at least one of the first capacitors to periodically charge at least one of the second capacitors.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: October 14, 2014
    Assignee: Analog Devices Technology
    Inventors: Linus Sheng, Christopher W. Mangelsdorf
  • Charge Transfer Apparatus and Method
    Publication number: 20140022007
    Abstract: An apparatus for transferring charge has a first charge pump path with a plurality of stages having first capacitors, and a second charge pump path, also with a plurality of stage having second capacitors, in parallel with the first charge pump path. The first and second charge pump paths are coupled to share a common output node. The apparatus also has a timing circuit coupled with the first and second charge pump paths. Among other things, the timing circuit is configured to cause at least one of the first capacitors to periodically charge at least one of the second capacitors.
    Type: Application
    Filed: July 19, 2013
    Publication date: January 23, 2014
    Applicant: Analog Devices Technology
    Inventors: Linus Sheng, Christopher W. Mangelsdorf