Patents by Inventor Bernhard Rasch

Bernhard Rasch 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).

  • Protective circuit for a series connection of a power semi-conductor end stage and an inductive consumer
    Patent number: 6577482
    Abstract: A protective circuit for a series circuit of a power semiconductor and an inductive load, to which a freewheeling circuit of a freewheeling diode and a reverse polarity protection semiconductor switch connected in series is connected in parallel. The power semiconductor output stage may be switched on and off depending on a predetermined setpoint value with a pulse-width modulated control signal and the reverse polarity protection semiconductor switch may be made non-conducting via a charging pump when the polarity of the supply voltage is reversed.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: June 10, 2003
    Assignee: Robert Bosch GmbH
    Inventors: Harald Eisenhardt, Bernhard Rasch, Rolf Falliano