Patents by Inventor Ruiping Zhu

Ruiping Zhu 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).

  • Output protection circuit of a power converter
    Patent number: 8000116
    Abstract: An output protection circuit used for a power converter having an operational amplifier, a diode, a number of voltage-dividing resistors, and a switch tube. In this circuit, the voltage-dividing resistors are connected in series to form a voltage-dividing network, of which one node is connected to a reference level end Vref of a PWM control module of the converter, while the other node is grounded. A voltage dividing point M is coupled to an inverting input end of the operational amplifier AR1.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: August 16, 2011
    Assignee: Mornsun Guangzhou Science & Technology Ltd.
    Inventor: Ruiping Zhu
  • OUTPUT PROTECTION CIRCUIT OF A POWER CONVERTER
    Publication number: 20100054003
    Abstract: An output protection circuit used for a power converter having an operational amplifier, a diode, a number of voltage-dividing resistors, and a switch tube. In this circuit, the voltage-dividing resistors are connected in series to form a voltage-dividing network, of which one node is connected to a reference level end Vref of a PWM control module of the converter, while the other node is grounded. A voltage dividing point M is coupled to an inverting input end of the operational amplifier AR1.
    Type: Application
    Filed: March 10, 2008
    Publication date: March 4, 2010
    Inventor: Ruiping Zhu