Patents by Inventor Hengbiao Wang

Hengbiao 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).

  • Voltage adjustment method, and voltage pre-regulator power supply circuit and system
    Patent number: 9325238
    Abstract: A voltage adjustment method, and a voltage pre-regulator power supply circuit and system, that implements highly-efficient output of a power supply in a quasi straight-through state and increases voltage output precision of a circuit. The voltage adjustment method includes receiving a to-be-adjusted voltage through a positive wire input end and a negative wire input end; changing, in a control mode in which a connection time is fixed and a disconnection time is adjusted, a duty cycle for the to-be-adjusted voltage to obtain a primary adjusted voltage; and changing, in a control mode in which a disconnection time is fixed and a connection time is adjusted, a duty cycle for the primary adjusted voltage to obtain an output voltage. The present disclosure is applied to a non-isolated direct-current quasi straight-through pre-regulator power supply.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: April 26, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Pinhua Zhu, Hengbiao Wang, Wenzong Cao
  • Voltage Adjustment Method, and Voltage Pre-Regulator Power Supply Circuit and System
    Publication number: 20140327417
    Abstract: A voltage adjustment method, and a voltage pre-regulator power supply circuit and system, that implements highly-efficient output of a power supply in a quasi straight-through state and increases voltage output precision of a circuit. The voltage adjustment method includes receiving a to-be-adjusted voltage through a positive wire input end and a negative wire input end; changing, in a control mode in which a connection time is fixed and a disconnection time is adjusted, a duty cycle for the to-be-adjusted voltage to obtain a primary adjusted voltage; and changing, in a control mode in which a disconnection time is fixed and a connection time is adjusted, a duty cycle for the primary adjusted voltage to obtain an output voltage. The present disclosure is applied to a non-isolated direct-current quasi straight-through pre-regulator power supply.
    Type: Application
    Filed: July 18, 2014
    Publication date: November 6, 2014
    Inventors: Pinhua Zhu, Hengbiao Wang, Wenzong Cao