Patents by Inventor Anastasios Moschopoulos

Anastasios Moschopoulos 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).

  • Base drive circuit for power transistors
    Patent number: 4447741
    Abstract: A base drive circuit for power transistors uses a base drive transformer in a dual mode, as a voltage transformer when it is driven to switch on or off, and as a circuit transformer when the transistor is conducting. Particularly a single base drive is used to drive a plurality of base drive transformer, each base drive transformer acting in the dual mode. This isolates the power transistors from each other and avoids differences in switching characteristics of the power transistors from affecting each other.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: May 8, 1984
    Assignee: Northern Telecom Limited
    Inventor: Anastasios Moschopoulos
  • Temperature compensated current sensing circuit for a power supply
    Patent number: 3931566
    Abstract: A converter power supply is provided with a novel current regulating circuit. A magnetoresistive element is disposed in flux coupling proximity to the output inductor of a power supply for providing a control signal corresponding to the output current thereof. The element is mounted in the air gap of the split-loop core of the inductor.
    Type: Grant
    Filed: December 10, 1974
    Date of Patent: January 6, 1976
    Assignee: Northern Electric Company Limited
    Inventors: Geoffrey John Pask, Anastasios Moschopoulos