Patents Represented by Attorney C. M. Lorin

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  • Direct current power control circuit
    Patent number: 3932800
    Abstract: A DC to DC power converter of the chopper-type includes a reverse conducting main thyristor device, or equivalent, and a saturable autotransformer in the power path of the main thyristor device, the autotransformer being in the saturated state when the main thyristor device is conducting, and a gated capacitor commutating circuit to desaturate the autotransformer for commutating the main thyristor device out of conduction.
    Type: Grant
    Filed: January 10, 1975
    Date of Patent: January 13, 1976
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hideo Iwamoto, Mamoru Miyamoto
  • Force commutation static frequency changer apparatus using direct current chopper technique
    Patent number: 3931563
    Abstract: An improved force commutated cycloconverter is provided by selectively switching a DC chopper to different groups of main thyristors including a thyristor to be commutated in the controlled sequence of thyristor commutations. The DC chopper is self-commutating. The forced commutating circuit is applied to various configurations of cycloconverters.
    Type: Grant
    Filed: September 25, 1974
    Date of Patent: January 6, 1976
    Assignee: Westinghouse Electric Corporation
    Inventor: Eric J. Stacey