Patents by Inventor Ruthard Minkner

Ruthard Minkner 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).

  • Toroidal core current transformer with phase compensation circuit
    Patent number: 8212535
    Abstract: Disclosed is a toroidal core current transformer comprising a primary conductor which penetrates the toroidal core and a secondary winding that is wound around the toroidal core. A measuring shunt (RSh) or a load (Zb) is provided at the secondary end. In order to compensate the phase error (f) between the primary current (IP) and the secondary current (Is), a compensation circuit (K) whose capacity (C) is measured substantially according to equation (I) or (II) is provided at the secondary end. In equation (I) or (II), C represents the capacity of the compensation circuit, ? represents the radian frequency, ? represents the phase error between the primary current and the secondary current, Rsh represents the resistance of an optional measuring shunt, and Zb represents the impedance of an optional load.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: July 3, 2012
    Assignee: Trench France SAS
    Inventors: Ruthard Minkner, Joachim Schmid, Rolf Fluri
  • Toroidal Core Current Transformer with Phase Compensation Circuit
    Publication number: 20100219799
    Abstract: Disclosed is a toroidal core current transformer comprising a primary conductor which penetrates the toroidal core and a secondary winding that is wound around the toroidal core. A measuring shunt (RSh) or a load (Zb) is provided at the secondary end. In order to compensate the phase error (f) between the primary current (IP) and the secondary current (Is), a compensation circuit (K) whose capacity (C) is measured substantially according to equation (I) or (II) is provided at the secondary end. In equation (I) or (II), C represents the capacity of the compensation circuit, ? represents the radian frequency, ? represents the phase error between the primary current and the secondary current, Rsh represents the resistance of an optional measuring shunt, and Zb represents the impedance of an optional load.
    Type: Application
    Filed: February 17, 2006
    Publication date: September 2, 2010
    Applicant: Trench Switzerland AG
    Inventors: Ruthard Minkner, Joachim Schmid, Rolf Fluri