Patents by Inventor Andreas Bergvall

Andreas Bergvall 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).

  • Direct current breaker and electrical power system comprising such direct current breaker
    Patent number: 9013853
    Abstract: A direct current breaker for a high voltage direct current application includes: two high voltage electron tubes arranged in an anti-parallel connection, and a control circuit for receiving, from a control system, infrared pulses including control information, the control circuit further including a device configured to convert the infrared pulses into electrical control signals, for controlling a switching status of the direct current breaker. An electrical power system includes such direct current breaker.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: April 21, 2015
    Assignee: ABB Technology AG
    Inventors: Baoliang Sheng, Andreas Bergvall, Björn Jacobson, Peter Klee
  • DIRECT CURRENT BREAKER AND ELECTRICAL POWER SYSTEM COMPRISING SUCH DIRECT CURRENT BREAKER
    Publication number: 20140268468
    Abstract: A direct current breaker for a high voltage direct current application includes: two high voltage electron tubes arranged in an anti-parallel connection, and a control circuit for receiving, from a control system, infrared pulses including control information, the control circuit further including a device configured to convert the infrared pulses into electrical control signals, for controlling a switching status of the direct current breaker. An electrical power system includes such direct current breaker.
    Type: Application
    Filed: October 25, 2011
    Publication date: September 18, 2014
    Applicant: ABB TECHNOLOGY AG
    Inventors: Baoliang Sheng, Andreas Bergvall, Björn Jacobson, Peter Klee