Patents by Inventor Umberto Gibellini

Umberto Gibellini 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).

  • CURRENT TRANSFORMER WITH IMPEDANCE COMPENSATION AND ASSOCIATED METHOD
    Publication number: 20090237066
    Abstract: An impedance-compensated current transformer comprising a primary winding, a power source electrically coupled through the primary winding; a secondary winding magnetically coupled to the first primary winding, the secondary winding having a secondary winding impedance and a secondary winding resistance; and an impedance-compensation circuit electrically coupled across the secondary winding; wherein the impedance-compensation circuit actively reflects to the secondary winding a virtual impedance which is equal in magnitude and opposite in polarity to the secondary winding impedance.
    Type: Application
    Filed: March 17, 2009
    Publication date: September 24, 2009
    Applicant: FALCO Ltd.
    Inventor: UMBERTO GIBELLINI
  • Current transformer with impedance compensation and associated methods
    Patent number: 7525297
    Abstract: An impedance-compensated current transformer comprising a primary winding, a power source electrically coupled through the primary winding; a secondary winding magnetically coupled to the first primary winding, the secondary winding having a secondary winding impedance and a secondary winding resistance; and an impedance-compensation circuit electrically coupled across the secondary winding; wherein the impedance-compensation circuit actively reflects to the secondary winding a virtual impedance which is equal in magnitude and opposite in polarity to the secondary winding impedance.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: April 28, 2009
    Assignee: FALCO Ltd.
    Inventor: Umberto Gibellini
  • Current transformer with impedance compensation and associated methods
    Publication number: 20070126411
    Abstract: An impedance-compensated current transformer comprising a primary winding, a power source electrically coupled through the primary winding; a secondary winding magnetically coupled to the first primary winding, the secondary winding having a secondary winding impedance and a secondary winding resistance; and an impedance-compensation circuit electrically coupled across the secondary winding; wherein the impedance-compensation circuit actively reflects to the secondary winding a virtual impedance which is equal in magnitude and opposite in polarity to the secondary winding impedance.
    Type: Application
    Filed: December 1, 2005
    Publication date: June 7, 2007
    Inventor: Umberto Gibellini