Patents by Inventor Edward Stretton Eilley

Edward Stretton Eilley 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 sensing circuit having at least one sense cell
    Patent number: 5652540
    Abstract: A power semiconductor device (4) has a main current carrying section (4a) with a number of parallel-connected active device cells (5) and a first main electrode (6) coupled to a first terminal (2), a second main electrode (7) connected to a second terminal (3) and a control electrode (8) and a sense current carrying section (4b) with at least one sense cell (5a) similar to the active device cells (5) and having a first main electrode (6) coupled to the first terminals (2) and a second main electrode (9). A current sensing arrangement (10) has a first resistor (R1) coupling the second main electrode (9) of the sense current carrying section (4b) to the second terminal (3), a second resistor (R2) similar to the first resistor (R1) and a current source (11) coupled in series with the second resistor to the second terminal (3) for supplying a reference current (Ir) through the second resistor (R2).
    Type: Grant
    Filed: December 5, 1995
    Date of Patent: July 29, 1997
    Assignee: U S Philips Corporation
    Inventor: Edward Stretton Eilley