Patents by Inventor Mark R. Jekel

Mark R. Jekel 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).

  • Patent number: 5508652
    Abstract: A switching circuit that includes two parallel connected switching transistors. A primary winding of a transformer is connected across the drain electrodes of each of the switching transistors and a secondary winding of the transition transformer is connected to the gate electrodes of the transistor. A capacitor is connected in series with the primary winding to isolate the primary winding from the switching circuit when in a steady state operation. The secondary winding shorts the commonly connected gate electrodes in the steady state condition. The differential in voltage between the drain electrodes is used to activate the primary winding of the transformer which induces a correction voltage in the secondary winding to cause the transistors to operate at the same rate.
    Type: Grant
    Filed: July 13, 1994
    Date of Patent: April 16, 1996
    Assignee: Westinghouse Elec. Corp.
    Inventor: Mark R. Jekel