Patents by Inventor Edrick C. G. Wong

Edrick C. G. Wong 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).

  • Systems and methods for bidirectional two-port battery charging with boost functionality
    Patent number: 10673260
    Abstract: The disclosed embodiments provide a charging system for a portable electronic device. The charging system includes a first bidirectional switching converter connected to a first power port of the portable electronic device, a low-voltage subsystem in the portable electronic device, and a high-voltage subsystem in the portable electronic device and a second bidirectional switching converter connected to a second power port of the portable electronic device, the low-voltage subsystem, and the high-voltage subsystem. The charging system also includes a control circuit that operates the first and second bidirectional switching converters to provide and receive power through the first and second power ports and convert an input voltage received through the first or second power port into a set of output voltages for charging an internal battery in the portable electronic device and powering the low-voltage subsystem and the high-voltage subsystem.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: June 2, 2020
    Assignee: Apple Inc.
    Inventors: Thomas C. Greening, Kamran M. Hasan, Edrick C. G. Wong
  • Systems and Methods for Bidirectional Two-Port Battery Charging with Boost Functionality
    Publication number: 20190013683
    Abstract: The disclosed embodiments provide a charging system for a portable electronic device. The charging system includes a first bidirectional switching converter connected to a first power port of the portable electronic device, a low-voltage subsystem in the portable electronic device, and a high-voltage subsystem in the portable electronic device and a second bidirectional switching converter connected to a second power port of the portable electronic device, the low-voltage subsystem, and the high-voltage subsystem. The charging system also includes a control circuit that operates the first and second bidirectional switching converters to provide and receive power through the first and second power ports and convert an input voltage received through the first or second power port into a set of output voltages for charging an internal battery in the portable electronic device and powering the low-voltage subsystem and the high-voltage subsystem.
    Type: Application
    Filed: August 24, 2018
    Publication date: January 10, 2019
    Inventors: Thomas C. Greening, Kamran M. Hasan, Edrick C. G. Wong
  • Systems and methods for bidirectional two-port battery charging with boost functionality
    Patent number: 10097017
    Abstract: The disclosed embodiments provide a charging system for a portable electronic device. The charging system includes a first bidirectional switching converter connected to a first power port of the portable electronic device, a low-voltage subsystem in the portable electronic device, and a high-voltage subsystem in the portable electronic device and a second bidirectional switching converter connected to a second power port of the portable electronic device, the low-voltage subsystem, and the high-voltage subsystem. The charging system also includes a control circuit that operates the first and second bidirectional switching converters to provide and receive power through the first and second power ports and convert an input voltage received through the first or second power port into a set of output voltages for charging an internal battery in the portable electronic device and powering the low-voltage subsystem and the high-voltage subsystem.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: October 9, 2018
    Assignee: Apple Inc.
    Inventors: Thomas C. Greening, Kamran M. Hasan, Edrick C. G. Wong
  • SYSTEMS AND METHODS FOR BIDIRECTIONAL TWO-PORT BATTERY CHARGING WITH BOOST FUNCTIONALITY
    Publication number: 20160380455
    Abstract: The disclosed embodiments provide a charging system for a portable electronic device. The charging system includes a first bidirectional switching converter connected to a first power port of the portable electronic device, a low-voltage subsystem in the portable electronic device, and a high-voltage subsystem in the portable electronic device and a second bidirectional switching converter connected to a second power port of the portable electronic device, the low-voltage subsystem, and the high-voltage subsystem. The charging system also includes a control circuit that operates the first and second bidirectional switching converters to provide and receive power through the first and second power ports and convert an input voltage received through the first or second power port into a set of output voltages for charging an internal battery in the portable electronic device and powering the low-voltage subsystem and the high-voltage subsystem.
    Type: Application
    Filed: February 23, 2016
    Publication date: December 29, 2016
    Inventors: Thomas C. Greening, Kamran M. Hasan, Edrick C. G. Wong