Patents by Inventor Mingzhi He

Mingzhi He 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).

  • Power management circuit for battery pack
    Patent number: 7737662
    Abstract: A power system for managing charging, discharging and protection of rechargeable batteries is disclosed. The power system mainly includes a power system. The power system includes a switching circuit coupled to the rechargeable batteries to charge and discharge the rechargeable batteries. The power system includes a power management unit to control the switching circuit. The power system includes a temperature sensing circuit to monitor a temperature of the batteries, voltage detectors to monitor voltages of the batteries, and current detectors to monitor a current of the batteries. If an abnormal condition is sensed by the power management unit when the power system is in an operating mode, the power management unit will terminate the operating mode by switching off the switching circuit to protect the batteries and the power system.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: June 15, 2010
    Assignee: O2Micro International Ltd.
    Inventors: Chun Lu, Stefan Maireanu, Luyang Luo, Lin Tang, Mingzhi He, Jianping Xu
  • Power management circuit for battery pack
    Publication number: 20080150488
    Abstract: A power system for managing charging, discharging and protection of rechargeable batteries is disclosed. The power system mainly includes a power system. The power system includes a switching circuit coupled to the rechargeable batteries to charge and discharge the rechargeable batteries. The power system includes a power management unit to control the switching circuit. The power system includes a temperature sensing circuit to monitor a temperature of the batteries, voltage detectors to monitor voltages of the batteries, and current detectors to monitor a current of the batteries. If an abnormal condition is sensed by the power management unit when the power system is in an operating mode, the power management unit will terminate the operating mode by switching off the switching circuit to protect the batteries and the power system.
    Type: Application
    Filed: December 26, 2006
    Publication date: June 26, 2008
    Inventors: Chun Lu, Stefan Maireanu, Luyang Luo, Lin Tang, Mingzhi He, Jianping Xu