Patents by Inventor Alfred E. Relation

Alfred E. Relation 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).

  • AC to DC power conversion circuit with low harmonic distortion
    Patent number: 5019952
    Abstract: In an AC to DC power conversion circuit including a boost inductor connected in series between a full-wave rectifier and a DC load, a switch is connected to selectively shunt boost inductor current from the load. Switch conduction is controlled by a pulse width modulator generating switching pulses at a high fixed frequency. The pulse widths are automatically varied as a function of boost inductor current, load voltage, and an ideal sinusoidal waveform derived from the AC input voltage to force the boost inductor current to closely conform to the ideal sinusoidal waveform and thus minimize harmonic distortion, while achieving load voltage regulation and near unity power factor.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: May 28, 1991
    Assignee: General Electric Company
    Inventors: Joseph L. Smolenski, Gerard W. Christopher, John C. Wright, Alfred E. Relation
  • Pulse generating means
    Patent number: 3956704
    Abstract: Pulses generated by each of two normally synchronized oscillators are combined into a single pulse per cycle by feeding them to a monostable multivibrator and by differentiating the output signal of the monostable multivibrator.
    Type: Grant
    Filed: December 20, 1972
    Date of Patent: May 11, 1976
    Assignee: General Electric Company
    Inventors: Marvin F. Keeney, Jr., Alfred E. Relation