Patents by Inventor David John Martinkovic

David John Martinkovic 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).

  • High speed-high voltage switching with low power consumption
    Patent number: 4070589
    Abstract: A capacitive load is charged through a series transistor. Peak charge currents for the load are drawn from a capacitive source whose charge is constantly maintained. Rapid discharge of the capacitive load is through a semiconductor diode and a cascade of transistors which act as switching elements. Diodes across the base-emitter junction of these switching diodes provide protection against transient damage as well as reducing the time required to cut-off conduction of the transistors. A simple transistor TTL drive (+5v) operates the switch.
    Type: Grant
    Filed: October 29, 1976
    Date of Patent: January 24, 1978
    Assignee: The Singer Company
    Inventor: David John Martinkovic