Patents by Inventor Dachun YANG

Dachun YANG 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).

  • Pre-charging circuit and pre-charging method for high voltage battery pack
    Patent number: 11404894
    Abstract: Embodiments of the present disclosure relate to the field of battery technologies, and disclose a pre-charging circuit for a high voltage battery pack and a pre-charging method therefor. In some embodiments of the present disclosure, during a charging process, a control module switches on a charging switching module and switches off a charging pre-charging module after determining that a voltage at the first end of the charging switching module and a voltage at the second end of the charging switching module comply with a first constraint relationship; during a discharging process, the control module switches on the main positive switching module and switches off the main positive pre-charging module after determining that a voltage at the first end of the main positive switching module and a voltage at the second end of the main positive switching module comply with a second constraint relationship.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: August 2, 2022
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Dachun Yang, Baohai Du, Yanhui Fu, Qiandeng Li
  • PRE-CHARGING CIRCUIT AND PRE-CHARGING METHOD FOR HIGH VOLTAGE BATTERY PACK
    Publication number: 20200235586
    Abstract: Embodiments of the present disclosure relate to the field of battery technologies, and disclose a pre-charging circuit for a high voltage battery pack and a pre-charging method therefor. In some embodiments of the present disclosure, during a charging process, a control module switches on a charging switching module and switches off a charging pre-charging module after determining that a voltage at the first end of the charging switching module and a voltage at the second end of the charging switching module comply with a first constraint relationship; during a discharging process, the control module switches on the main positive switching module and switches off the main positive pre-charging module after determining that a voltage at the first end of the main positive switching module and a voltage at the second end of the main positive switching module comply with a second constraint relationship.
    Type: Application
    Filed: September 30, 2019
    Publication date: July 23, 2020
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Dachun YANG, Baohai DU, Yanhui FU, Qiandeng LI