Patents by Inventor Claus Cramer

Claus Cramer 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).

  • Capacitively buffered power supply for an electronic device
    Patent number: 4890003
    Abstract: According to the invention, a buffer capacitor (4) is connected, on the one hand, via a series controller (5) limiting the charging voltage of the buffer capacitor (4), to supply voltage terminals (2, 3) and, on the other hand, via a voltage stabilizing circuit (6), to lead terminals (1a, 1b) of the electronic device (1). Thus the buffer capacitor (4) can be charged to a charging voltage which is clearly above the operating voltage of the electronic device (1), so that the period until the minimum operating voltage of the electronic device (1) is reduced, is lengthened. In addition, a constant operating voltage is available for the electronic device (1).
    Type: Grant
    Filed: November 8, 1988
    Date of Patent: December 26, 1989
    Assignee: Siemensaktiengesellschaft
    Inventors: Rudolf Seibert, Claus Cramer