Patents by Inventor Stefan Bronnimann

Stefan Bronnimann 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).

  • Device for improving the charging or discharging process of a battery
    Patent number: 8120321
    Abstract: A device for balancing a plurality of at least two batteries or cells of a multicell battery comprises a multicell battery and a battery management system with a balancing circuit. Thereby all individual battery cells are connected to the battery monitoring system, wherein the battery monitoring system measures single cell voltage as well as the battery temperature and the current. The battery monitoring system is able to discern the lowest cell voltage and to discern a number of cells having a voltage higher than a determined maximum allowable voltage, which will be balanced until the charge imbalance decreases to an acceptable amount. The battery management system is active during charging and discharging of the multicell battery and the thresholds vary with the state of the battery.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: February 21, 2012
    Assignee: Berner Fachhochschule, Technik und Informatik
    Inventors: Andrea Vezzini, Stefan Bronnimann
  • Device for Improving the Charging or Discharging Process of a Battery
    Publication number: 20090027006
    Abstract: A device for balancing a plurality of at least two batteries or cells of a multicell battery comprises a multicell battery and a battery management system with a balancing circuit. Thereby all individual battery cells are connected to the battery monitoring system, wherein the battery monitoring system measures single cell voltage as well as the battery temperature and the current. The battery monitoring system is able to discern the lowest cell voltage and to discern a number of cells having a voltage higher than a determined maximum allowable voltage, which will be balanced until the charge imbalance decreases to an acceptable amount. The battery management system is active during charging and discharging of the multicell battery and the thresholds vary with the state of the battery.
    Type: Application
    Filed: January 26, 2007
    Publication date: January 29, 2009
    Applicant: Berner Fachhochschule, Technik und Informatik
    Inventors: Andrea Vezzini, Stefan Bronnimann