Patents by Inventor Rolf Weichler

Rolf Weichler 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 against persistent overvoltage in an electronic unit
    Publication number: 20010021091
    Abstract: A protective circuit for an electronic unit (EU) for protection against persistent overvoltage in an automobile, located between the network connections (DCIN, GND1) of an on-board voltage network with an on-board voltage (VB), and the operating voltage connections (DCOUT, GND2) of the electronic unit (EU). The protective circuit comprises an overvoltage indicator (OVI) which is connected to the network connections (DCIN, GND1) of the on-board voltage network, and triggers a switching signal (SO) when a threshold value of the on-board voltage (VB) has been exceeded, a switch (SW) with input electrodes (S, G) which can be activated by the switching signal (SO), and a voltage limiter (VL) to limit short-term overvoltage.
    Type: Application
    Filed: December 28, 2000
    Publication date: September 13, 2001
    Applicant: Nokia Mobile Phones Ltd.
    Inventor: Rolf Weichler