Patents by Inventor Junxi SU

Junxi SU 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-saving circuit for contactor
    Patent number: 11069499
    Abstract: A power-saving circuit for a contactor includes a coil drive circuit, and further includes a rectification and filtering circuit, a PFC circuit, an auxiliary power supply circuit, and a square wave generation circuit. The square wave generation circuit outputs a first square wave signal to the PFC circuit via a first output end according to a set timing sequence, and outputs a second square wave signal and a third square wave signal to the coil drive circuit via a second output end, so as to respectively control duty cycles of a first switch tube in the PFC circuit and a second switch tube in the coil drive circuit. The auxiliary power supply circuit supplies electric energy to the square wave generation circuit during a holding stage of the contactor.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: July 20, 2021
    Assignee: MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO., LTD.
    Inventors: Junxi Su, Xiangyang Yin
  • Contactor coil control circuit
    Patent number: 10910182
    Abstract: The present application discloses a contactor coil control circuit, including a switch control circuit, a drive circuit, a fast turn-off circuit, a diode D1, a first MOS (Metal Oxide Semiconductor) transistor TR1 and a contactor coil.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: February 2, 2021
    Assignee: MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO., LTD.
    Inventors: Xiangyang Yin, Shengbin Tang, Junxi Su
  • POWER-SAVING CIRCUIT FOR CONTACTOR
    Publication number: 20200258707
    Abstract: A power-saving circuit for a contactor includes a coil drive circuit, and further includes a rectification and filtering circuit, a PFC circuit, an auxiliary power supply circuit, and a square wave generation circuit. The square wave generation circuit outputs a first square wave signal to the PFC circuit via a first output end according to a set timing sequence, and outputs a second square wave signal and a third square wave signal to the coil drive circuit via a second output end, so as to respectively control duty cycles of a first switch tube in the PFC circuit and a second switch tube in the coil drive circuit. The auxiliary power supply circuit supplies electric energy to the square wave generation circuit during a holding stage of the contactor.
    Type: Application
    Filed: August 30, 2016
    Publication date: August 13, 2020
    Applicant: MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO., LTD.
    Inventors: Junxi SU, Xiangyang YIN
  • CONTACTOR COIL CONTROL CIRCUIT
    Publication number: 20190035583
    Abstract: The present application discloses a contactor coil control circuit, including a switch control circuit, a drive circuit, a fast turn-off circuit, a diode D1, a first MOS (Metal Oxide Semiconductor) transistor TR1 and a contactor coil.
    Type: Application
    Filed: August 31, 2016
    Publication date: January 31, 2019
    Applicant: MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO., LTD.
    Inventors: Xiangyang YIN, Shengbin TANG, Junxi SU