Patents by Inventor Tangqian CHENG

Tangqian CHENG 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).

  • Wrapping method for common mode inductor
    Patent number: 10157708
    Abstract: The present disclosure provides a wrapping method for the common inductor. The common mode inductor includes a first coil winding and a second coil winding. The wrapping method for a common mode inductor includes steps of: disposing two isolation blocking sheets at different positions of a magnetic core; wrapping the first coil winding around the magnetic core, wherein the first coil winding is divided into two wrapping areas by one of the isolation blocking sheets; wrapping the second coil winding around the magnetic core, wherein the second coil winding is divided into two wrapping areas by the other one of the isolation blocking sheets, wherein the first coil winding and the second coil winding are symmetrically wrapped.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: December 18, 2018
    Assignee: Delta Electronics (Jiangsu) Ltd.
    Inventor: Tangqian Cheng
  • Switching power supply, EMI filter, common mode inductor and wrapping method for the common mode inductor
    Patent number: 10090100
    Abstract: The present disclosure provides a switching power supply, an EMI filter, a common mode inductor and a wrapping method for the common mode inductor. The common mode inductor includes a first coil winding and a second coil winding. The wrapping method for a common mode inductor includes steps of: disposing two isolation blocking sheets at different positions of a magnetic core; wrapping the first coil winding around the magnetic core, wherein the first coil winding is divided into two wrapping areas by one of the isolation blocking sheets; wrapping the second coil winding around the magnetic core, wherein the second coil winding is divided into two wrapping areas by the other one of the isolation blocking sheets, wherein the first coil winding and the second coil winding are symmetrically wrapped.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: October 2, 2018
    Assignee: Delta Electronics (Jiangsu) Ltd.
    Inventor: Tangqian Cheng
  • WRAPPING METHOD FOR COMMON MODE INDUCTOR
    Publication number: 20180137973
    Abstract: The present disclosure provides a wrapping method for the common mode inductor. The common mode inductor includes a first coil winding and a second coil winding. The wrapping method for a common mode inductor includes steps of: disposing two isolation blocking sheets at different positions of a magnetic core; wrapping the first coil winding around the magnetic core, wherein the first coil winding is divided into two wrapping areas by one of the isolation blocking sheets; wrapping the second coil winding around the magnetic core, wherein the second coil winding is divided into two wrapping areas by the other one of the isolation blocking sheets, wherein the first coil winding and the second coil winding are symmetrically wrapped.
    Type: Application
    Filed: January 15, 2018
    Publication date: May 17, 2018
    Applicant: Delta Electronics (Jiangsu) Ltd.
    Inventor: Tangqian CHENG
  • Switching power supply, EMI filter, common mode inductor and wrapping method for the common mode inductor
    Patent number: 9859866
    Abstract: The present disclosure provides a switching power supply, an EMI filter, a common mode inductor and a wrapping method for the common mode inductor. The common mode inductor includes: a magnetic core; two multilayered coil windings symmetrically wrapped around the magnetic core; and two isolation gaps each of which is formed in respective one of the two multilayered coil windings, and is configured to divide, by beginning from a first layer, the respective one of the multilayered coil windings into two wrapping areas.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: January 2, 2018
    Assignee: Delta Electronics (Jiangsu) Ltd.
    Inventors: Tangqian Cheng, Yingtao Gong, Cong Liu, Jianping Lu, Long Zhang
  • SWITCHING POWER SUPPLY, EMI FILTER, COMMON MODE INDUCTOR AND WRAPPING METHOD FOR THE COMMON MODE INDUCTOR
    Publication number: 20150349628
    Abstract: The present disclosure provides a switching power supply, an EMI filter, a common mode inductor and a wrapping method for the common mode inductor. The common mode inductor includes a first coil winding and a second coil winding. The wrapping method for a common mode inductor includes steps of: disposing two isolation blocking sheets at different positions of a magnetic core; wrapping the first coil winding around the magnetic core, wherein the first coil winding is divided into two wrapping areas by one of the isolation blocking sheets; wrapping the second coil winding around the magnetic core, wherein the second coil winding is divided into two wrapping areas by the other one of the isolation blocking sheets, wherein the first coil winding and the second coil winding are symmetrically wrapped.
    Type: Application
    Filed: April 27, 2015
    Publication date: December 3, 2015
    Inventor: Tangqian CHENG
  • SWITCHING POWER SUPPLY, EMI FILTER, COMMON MODE INDUCTOR AND WRAPPING METHOD FOR THE COMMON MODE INDUCTOR
    Publication number: 20150348699
    Abstract: The present disclosure provides a switching power supply, an EMI filter, a common mode inductor and a wrapping method for the common mode inductor. The common mode inductor includes: a magnetic core; two multilayered coil windings symmetrically wrapped around the magnetic core; and two isolation gaps each of which is formed in respective one of the two multilayered coil windings, and is configured to divide, by beginning from a first layer, the respective one of the multilayered coil windings into two wrapping areas.
    Type: Application
    Filed: April 13, 2015
    Publication date: December 3, 2015
    Inventors: Tangqian CHENG, Yingtao GONG, Cong LIU, Jianping LU, Long ZHANG