Patents by Inventor Johannes Lambertus Franciscus Van Der Veen

Johannes Lambertus Franciscus Van Der Veen 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).

  • Inductive coupling system with capacitive parallel compensation of the mutual self-inductance between the primary and the secondary windings
    Patent number: 6498456
    Abstract: To improve the performance of an inductive coupling system, the magnetic coupling between the primary (4) and secondary (8) windings is increased by adding auxiliary windings (26,28) on the primary (2) and/or secondary (6) yokes of the assembly near the air gap (18) between the yokes. Capacitors (30,32) are connected to the auxiliary windings (26, 28) which, together with the inductance of the auxiliary windings, resonate at the operating frequency of the primary AC voltage (Vp). The effect is an improved magnetic coupling between the primary and secondary windings (4, 8) without increasing the size of the magnetic assembly.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: December 24, 2002
    Assignee: Koninklijke Philips Electronics N.V
    Inventors: Wilhelmus Gerardus Maria Ettes, Jorge Luiz Duarte, Johannes Lambertus Franciscus Van Der Veen
  • Inductive coupling system with capacitive parallel compensation of the mutual self-inductance between the primary and the secondary windings
    Publication number: 20020130642
    Abstract: To improve the performance of an inductive coupling system, the magnetic coupling between the primary (4) and secondary (8) windings is increased by adding auxiliary windings (26,28) on the primary (2) and/or secondary (6) yokes of the assembly near the air gap (18) between the yokes. Capacitors (30,32) are connected to the auxiliary windings (26, 28) which, together with the inductance of the auxiliary windings, resonate at the operating frequency of the primary AC voltage (Vp). The effect is an improved magnetic coupling between the primary and secondary windings (4, 8) without increasing the size of the magnetic assembly.
    Type: Application
    Filed: February 27, 2002
    Publication date: September 19, 2002
    Inventors: Wilhelmus Gerardus Maria Ettes, Jorge Luiz Duarte, Johannes Lambertus Franciscus Van Der Veen