Patents Represented by Attorney Alfred George Steinmetz

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  • Converter protection circuit operative to limit and counteract transformer saturation
    Patent number: 4127894
    Abstract: Primary and secondary currents of a converter transformer in a double-ended converter are continuously monitored to detect the onset of saturation in the magnetic core of the transformer. When the onset condition is detected, the conductive roles of the oppositely phased switching transistors in the converter are reversed to limit and counteract the onset of saturation in the magnetic core of the transformer.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: November 28, 1978
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: John D. Bishop, Patrick W. Clarke, William J. Schatz