Patents by Inventor Fengmin XIE

Fengmin XIE 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).

  • Patent number: 12388275
    Abstract: A charging/discharging overcurrent protection circuit and method. The circuit includes: an internal resistance sensing module, for sensing total internal resistance of serial charge/discharge switch transistors according to a preconfigured ratio in a charging/discharging state; a voltage selection module, connected to the internal resistance sensing module, for switching between different links according to a voltage gating switch so as to be connected to the internal resistance sensing module, to output a charging detection voltage and a charging reference voltage in a charging state, and output a discharging detection voltage and a discharging reference voltage in a discharging state; and an overcurrent signal generation module, connected to the voltage selection module, for switching between different inputs according to an input gating switch so as to generate a charging/discharging overcurrent protection signal according to a comparison result.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: August 12, 2025
    Assignee: Shenzhen Injoinic Technology Co., Ltd.
    Inventors: Chuan Xiao, Fengmin Xie
  • Publication number: 20230261485
    Abstract: A protection circuit for series-connected batteries is provided, including: a plurality of battery modules connected in series between an anode and a cathode of a battery pack, wherein each of the plurality of battery modules includes a single battery, a protection switch, and a single-battery protection module, wherein each single battery is connected in series with the corresponding protection switch, wherein each single-battery protection module is configured to generate an off signal and protect the corresponding battery module in response to the off signal; an off-signal level-shifting module, which transmits an off signal of one of the plurality of battery modules to the other battery modules; a transient-voltage suppression module, connected between the anode and cathode of the battery pack, for voltage deburring and decreasing a change rate of a total voltage across the anode and cathode of the battery pack.
    Type: Application
    Filed: April 10, 2023
    Publication date: August 17, 2023
    Applicant: SPINTROL TECHNOLOGY (SHENZHEN) CO., LTD.
    Inventors: Chuan XIAO, Fengmin XIE
  • Publication number: 20230065691
    Abstract: A charging/discharging overcurrent protection circuit and method. The circuit includes: an internal resistance sensing module, for sensing total internal resistance of serial charge/discharge switch transistors according to a preconfigured ratio in a charging/discharging state; a voltage selection module, connected to the internal resistance sensing module, for switching between different links according to a voltage gating switch so as to be connected to the internal resistance sensing module, to output a charging detection voltage and a charging reference voltage in a charging state, and output a discharging detection voltage and a discharging reference voltage in a discharging state; and an overcurrent signal generation module, connected to the voltage selection module, for switching between different inputs according to an input gating switch so as to generate a charging/discharging overcurrent protection signal according to a comparison result.
    Type: Application
    Filed: July 14, 2020
    Publication date: March 2, 2023
    Applicant: SPINTROL TECHNOLOGY (SHENZHEN) CO., LTD.
    Inventors: Chuan XIAO, Fengmin XIE