Patents by Inventor Roman BOSSHARD

Roman BOSSHARD 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).

  • Inductive power transfer system and method for operating an inductive power transfer system
    Patent number: 9843199
    Abstract: An exemplary inductive power transfer system having a transmitter coil and a receiver coil. A transmitter-side power converter having a mains rectifier stage powering a transmitter-side dc-bus and controlling a transmitter-side dc-bus voltage U1,dc. A transmitter-side inverter stage with a switching frequency fsw supplies the transmitter coil with an alternating current. A receiver-side power converter having a receiver-side rectifier stage that rectifies a voltage induced in the receiver coil and powering a receiver-side dc-bus and a receiver-side charging converter controlling a receiver-side dc-bus voltage U2,dc. Power controllers that determine from a power transfer efficiency of the power transfer, reference values U1,dc*, U2,dc* for the transmitter and receiver side dc-bus voltages. An inverter stage switching controller controls the switching frequency fsw to reduce losses in the transmitter-side inverter stage.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: December 12, 2017
    Assignee: ABB Schweiz AG
    Inventors: Roman Bosshard, Johann Walter Kolar, Francisco Canales, Beat Guggisberg, Guanghai Gong, Bernhard Wunsch
  • INDUCTIVE POWER TRANSFER SYSTEM AND METHOD FOR OPERATING AN INDUCTIVE POWER TRANSFER SYSTEM
    Publication number: 20150280455
    Abstract: An exemplary inductive power transfer system having a transmitter coil and a receiver coil. A transmitter-side power converter having a mains rectifier stage powering a transmitter-side dc-bus and controlling a transmitter-side dc-bus voltage U1,dc. A transmitter-side inverter stage with a switching frequency fsw supplies the transmitter coil with an alternating current. A receiver-side power converter having a receiver-side rectifier stage that rectifies a voltage induced in the receiver coil and powering a receiver-side dc-bus and a receiver-side charging converter controlling a receiver-side dc-bus voltage U2,dc. Power controllers that determine from a power transfer efficiency of the power transfer, reference values U1,dc*, U2,dc* for the transmitter and receiver side dc-bus voltages. An inverter stage switching controller controls the switching frequency fsw to reduce losses in the transmitter-side inverter stage.
    Type: Application
    Filed: March 30, 2015
    Publication date: October 1, 2015
    Applicant: ABB TECHNOLOGY AG
    Inventors: Roman BOSSHARD, Johann Walter KOLAR, Francisco CANALES, Beat GUGGISBERG, Guanghai GONG, Bernhard WUNSCH