Patents by Inventor Bonno Poppinga

Bonno Poppinga 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).

  • Multistage transistor amplifier
    Patent number: 4280103
    Abstract: A multistage transistor amplifier for amplifying alternating voltages which comprises at least two successive cascade-connected amplifier stages having d.c. feedback. A following amplifier stage is a.c. coupled to the output of the cascade-connected amplifier stages and a resistor is connected between the output of the cascade-connected amplifier stages and the input of the following amplifier stage. The cascade-connected amplifier stages supply the following amplifier stage with direct current, the d.c. operating resistance for the following amplifier stage including the cascade-connected amplifier stages and the resistor.
    Type: Grant
    Filed: July 31, 1979
    Date of Patent: July 21, 1981
    Assignee: Robert Bosch GmbH
    Inventor: Bonno Poppinga