Patents by Inventor Gottfried Moltgen

Gottfried Moltgen 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).

  • Apparatus for compensating reactive power in a three-phase network
    Patent number: 4019124
    Abstract: An apparatus for compensating for the reactive power in a three-phase network. The apparatus includes an uncontrolled rectifier, an intermediate DC link connected to the rectifier, and a self-commutating inverter connected to the DC link and controlled so as to have a pulse-width modulated output.
    Type: Grant
    Filed: March 11, 1976
    Date of Patent: April 19, 1977
    Assignee: Siemens Aktiengesellschaft
    Inventor: Gottfried Moltgen
  • Method and apparatus for compensating reactive power
    Patent number: 4009433
    Abstract: An arrangement for compensating reactive power in a three phase network using two converters with the same no load d-c voltage in which the two converters are coupled in parallel on the d-c side and shorted by a common choke with the one converter operated with a delayed firing time and the other with an advanced firing time and a d-c current in the choke regulated to a constant value by influencing the firing angles of the two converters in opposite directions.
    Type: Grant
    Filed: November 12, 1975
    Date of Patent: February 22, 1977
    Assignee: Siemens Aktiengesellschaft
    Inventor: Gottfried Moltgen