Patents by Inventor Chunyi FENG

Chunyi 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).

  • Multipath current source switching device
    Patent number: 9819195
    Abstract: The present disclosure discloses a multipath current source switching device, including a switching control unit, N current paths, and N loads. Each current path is formed by a constant current source circuit and a switching circuit. One terminal of a first load is coupled to a load power supply, and the other terminal of the first load is coupled to an output terminal of a constant current source circuit of a first current path and one terminal of a second load; one terminal of an ith load is coupled to the other terminal of an (i?1)th load and an output terminal of a constant current source circuit of an ith current path; and the switching control unit controls an output current of a corresponding constant current source circuit through a corresponding switching circuit.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: November 14, 2017
    Assignee: SICHUAN SUNFOR LIGHT CO., LTD
    Inventors: Ning Ning, Yongming Jia, Wenbin Chen, Chunyi Feng, Dongming Li, Mian Yang, Zhengyong Feng, Wentao Long
  • LED lighting drive circuit
    Patent number: 9485821
    Abstract: An LED lighting drive circuit supplies power for N groups of LED loads. The LED lighting drive circuit comprises N current paths, N groups of LEDs, and a constant current section. The LED lighting drive circuit enables the current of LED lamps to change in a sinusoidal half-wave form with the utility AC input, and keeps the current a constant effective value.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: November 1, 2016
    Assignees: SICHUAN SUNFOR LIGHT CO., LTD., UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
    Inventors: Dongming Li, Mian Yang, Zhengyong Feng, Wentao Long, Ning Ning, Dejun Yu, Chunyi Feng, Yongming Jia
  • LED LIGHTING DRIVE CIRCUIT
    Publication number: 20160165689
    Abstract: An LED lighting drive circuit supplies power for N groups of LED loads. The LED lighting drive circuit comprises N current paths, N groups of LEDs, and a constant current section. The LED lighting drive circuit enables the current of LED lamps to change in a sinusoidal half-wave form with the utility AC input, and keeps the current a constant effective value.
    Type: Application
    Filed: July 21, 2014
    Publication date: June 9, 2016
    Inventors: Dongming LI, Mian YANG, Zhengyong FENG, Wentao LONG, Ning NING, Dejun YU, Chunyi FENG, Yongming JIA
  • MULTIPATH CURRENT SOURCE SWITCHING DEVICE
    Publication number: 20150357823
    Abstract: The present disclosure discloses a multipath current source switching device, including a switching control unit, N current paths, and N loads. Each current path is formed by a constant current source circuit and a switching circuit. One terminal of a first load is coupled to a load power supply, and the other terminal of the first load is coupled to an output terminal of a constant current source circuit of a first current path and one terminal of a second load; one terminal of an ith load is coupled to the other terminal of an (i?1)th load and an output terminal of a constant current source circuit of an ith current path; and the switching control unit controls an output current of a corresponding constant current source circuit through a corresponding switching circuit.
    Type: Application
    Filed: December 27, 2013
    Publication date: December 10, 2015
    Inventors: NING NING, Yongming JIA, Wenbin CHEN, Chunyi FENG, Dongming LI, Mian YANG, Zhengyong FENG, Wentao LONG
  • Breast pump
    Patent number: D965136
    Type: Grant
    Filed: December 24, 2021
    Date of Patent: September 27, 2022
    Inventor: Chunyi Feng