Patents by Inventor Hans Oppermann

Hans Oppermann 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).

  • FLYBACK-TYPE INVERTER CIRCUIT FOR NETWORK SUPPLY OR FOR NETWORK-INDEPENDENT OPERATION
    Publication number: 20110058396
    Abstract: An inverter circuit for supplying solar power or wind power to a network or for network-independent operation. The inverter circuit includes a minimum number of components and can therefore be kept very compact.
    Type: Application
    Filed: January 18, 2007
    Publication date: March 10, 2011
    Applicant: CONERGY AG
    Inventor: Hans Oppermann
  • EMITTER-SWITCHED BIPOLAR TRANSISTOR
    Publication number: 20090195293
    Abstract: The invention relates to a power circuit with a emitter-switched bipolar transistor (ESBT) (T2) and a MOS transistor (T3) connected downstream of the bipolar transistor. The bipolar transistor (T2) is controlled by a Mosfet transistor (T1). A zener diode (D1) which is disposed between the exit of the MOS transistor (T3) and the base of the bipolar transistor (T2) transmits the return current of the base collector diode of the bipolar transistor (T2) to the foot point of the ESBT (T2). Furthermore, a voltage source (U) is inserted between the collector of the bipolar transistor (T2) and the drain of the Mosfet transistor (T1).
    Type: Application
    Filed: December 28, 2006
    Publication date: August 6, 2009
    Applicant: CONERGY AG
    Inventor: Hans Oppermann