Patents Represented by Attorney T. N. Twomey

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  • Direct coupled switching power supply with GTO SCR switching element
    Patent number: 4675798
    Abstract: An improved switching arrangement for a direct coupled switching power supply is provided by utilizing a gate turn off SCR as the primary switching element and a second SCR as the turn-off control such that upon detection of any of a fully charged storage element, an excessive current through the gate turn off SCR, or an insufficient input voltage, the switch is turned off.
    Type: Grant
    Filed: July 15, 1985
    Date of Patent: June 23, 1987
    Assignee: Harris Corporation
    Inventors: Steve R. Jost, John S. Prentice