Patents by Inventor Ningfan Zhong

Ningfan Zhong 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).

  • High-gain quasi-resonant DC-DC converter based on voltage doubling rectifier circuit
    Patent number: 11496054
    Abstract: The present invention relates to the technical field of high-gain DC-DC converters, and disclosed is a high-gain quasi-resonant DC-DC converter based on a voltage doubling rectifier circuit. On the basis of a half-bridge quasi-resonant high-gain circuit topology and by combining a bidirectional positive and negative voltage doubling rectifier circuit, the present invention provides a high-gain DC-DC converter. The converter can further improve output voltage gain and reduce output voltage ripples, and can improve the system efficiency while reducing the number of turns of a high-frequency transformer; moreover, the converter can achieve soft-switching control, thereby having the advantages of low voltage and current stress, high efficiency, and the like.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: November 8, 2022
    Assignee: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Ningfan Zhong, Zhenhai Zhang, Jianbo Wei
  • HIGH-GAIN QUASI-RESONANT DC-DC CONVERTER BASED ON VOLTAGE DOUBLING RECTIFIER CIRCUIT
    Publication number: 20220209672
    Abstract: The present invention relates to the technical field of high-gain DC-DC converters, and disclosed is a high-gain quasi-resonant DC-DC converter based on a voltage doubling rectifier circuit. On the basis of a half-bridge quasi-resonant high-gain circuit topology and by combining a bidirectional positive and negative voltage doubling rectifier circuit, the present invention provides a high-gain DC-DC converter. The converter can further improve output voltage gain and reduce output voltage ripples, and can improve the system efficiency while reducing the number of turns of a high-frequency transformer; moreover, the converter can achieve soft-switching control, thereby having the advantages of low voltage and current stress, high efficiency, and the like.
    Type: Application
    Filed: April 28, 2020
    Publication date: June 30, 2022
    Inventors: Ningfan Zhong, Zhenhai Zhang, Jianbo Wei