Patents by Inventor Ydo Goinga

Ydo Goinga 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).

  • DC and AC current detection circuit
    Patent number: 8975890
    Abstract: A circuit for detecting a DC current in a conductor (L1) includes a current transformer (CT) having a ferromagnetic core (10), a primary winding comprising the conductor (L1) and at least one secondary winding (W1). The circuit further includes an oscillator (12) for supplying an oscillating signal across the secondary winding and means for detecting a dc offset in the current flowing in the oscillator circuit. The circuit includes a capacitor (C1) in series with the secondary winding, and the detecting means is arranged to detect a non-zero voltage across the capacitor above a certain level.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: March 10, 2015
    Assignee: Shakira Limited
    Inventor: Ydo Goinga
  • DC & AC CURRENT DETECTION CIRCUIT
    Publication number: 20130162242
    Abstract: A circuit for detecting a DC current in a conductor (L1) includes a current transformer (CT) having a ferromagnetic core (10), a primary winding comprising the conductor (L1) and at least one secondary winding (W1). The circuit further includes an oscillator (12) for supplying an oscillating signal across the secondary winding and means for detecting a dc offset in the current flowing in the oscillator circuit. The circuit includes a capacitor (C1) in series with the secondary winding, and the detecting means is arranged to detect a non-zero voltage across the capacitor above a certain level.
    Type: Application
    Filed: September 21, 2011
    Publication date: June 27, 2013
    Applicant: Shakira Limited
    Inventor: Ydo Goinga