Patents by Inventor Leon Samuel WANG

Leon Samuel WANG 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).

  • Dual hysteretic control loop of envelope tracking
    Patent number: 10418946
    Abstract: An envelope tracking device includes circuitry that senses a current of an input state of the envelope tracking device. The circuitry also senses an output voltage of the envelope tracking device, and turns on at least one of a first and a second output switches to generate an output current based on at least one of the sensed current and the sensed voltage.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: September 17, 2019
    Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
    Inventors: Xiaofeng Lin, Leon Samuel Wang, Shengyuan Li, Junjie Lu, Xicheng Jiang
  • Method and apparatus for bypassing current generation in parallel with switching regulator
    Patent number: 10326363
    Abstract: A device, a circuit, and a method for current bypass are provided. The device includes circuitry detects an overload condition at a switching regulator output, enables a current bypass path including a linear current source in response to detecting the overload condition, and digitizes a difference between a load current and a switching regulator output current. The linear current source generates an active current assist signal based on the digitized difference between the load current and the switching regulator output current.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: June 18, 2019
    Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
    Inventors: Shengyuan Li, Junjie Lu, Cheng Huang, Xiaofeng Lin, Leon Samuel Wang, Xicheng Jiang
  • METHOD AND APPARATUS FOR BYPASSING CURRENT GENERATION IN PARALLEL WITH SWITCHING REGULATOR
    Publication number: 20180198274
    Abstract: A device, a circuit, and a method for current bypass are provided. The device includes circuitry detects an overload condition at a switching regulator output, enables a current bypass path including a linear current source in response to detecting the overload condition, and digitizes a difference between a load current and a switching regulator output current. The linear current source generates an active current assist signal based on the digitized difference between the load current and the switching regulator output current.
    Type: Application
    Filed: November 16, 2017
    Publication date: July 12, 2018
    Applicant: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Shengyuan LI, Junjie LU, Cheng HUANG, Xiaofeng LIN, Leon Samuel WANG, Xicheng JIANG
  • DUAL HYSTERETIC CONTROL LOOP OF ENVELOPE TRACKING
    Publication number: 20180198415
    Abstract: An envelope tracking device includes circuitry that senses a current of an input state of the envelope tracking device. The circuitry also senses an output voltage of the envelope tracking device, and turns on at least one of a first and a second output switches to generate an output current based on at least one of the sensed current and the sensed voltage.
    Type: Application
    Filed: January 8, 2018
    Publication date: July 12, 2018
    Applicant: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Xiaofeng LIN, Leon Samuel WANG, Shengyuan LI, Junjie LU, Xicheng JIANG