Patents by Inventor Zichen Feng

Zichen Feng 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).

  • BOOST CONVERTER WITH WIDE AVERAGE CURRENT LIMITING RANGE
    Publication number: 20240113621
    Abstract: A boost converter that provides a wide average current limiting range includes a switch coupled to an inductor output and a power input, a diode coupled to the inductor output and an output terminal load and configured to conduct current in only one direction away from the inductor output and toward the output terminal, a clamp circuit coupled to the diode and the switch, and a minimum time off module coupled to the diode and the switch. The clamp circuit is configured to clamp an inductor output current to a reference current while the converter is operating in a continuous conduction mode (CCM) of operation. The minimum time off module is configured to cause the inductor output current to be zero for at least a time Toff while the converter is operating in a pulse frequency modulation (PFM) mode of operation.
    Type: Application
    Filed: September 30, 2022
    Publication date: April 4, 2024
    Inventors: Jian Liang, Chen Feng, Zichen Feng
  • END COVER ASSEMBLY, AIR CYLINDER, TREAD CLEANER AND RAILWAY VEHICLE
    Publication number: 20240092318
    Abstract: An end cover assembly, an air cylinder, a tread sweeper and a railway vehicle.
    Type: Application
    Filed: October 9, 2020
    Publication date: March 21, 2024
    Inventors: Qingbing GOU, Anxu WU, Chang FENG, Yuchen ZHANG, Bo WU, Hao XU, Zichen WANG, Xun CHEN, Dongdong WANG, Meng WAN