The present disclosure relates to a circuit and a method for carrying out an alternating heating and capacitive measuring operation by means of a common heating wire, comprising the following steps: carrying out a heating operation, during which a pair of first switching elements and a pair of second switching elements are in a conducting state and the heating wire is conductively connected to one of two different heating potentials such that a heating current is applied to the heating wire; initiating a change from heating operation to measuring operation of the first switching elements and the second switching elements by way of a control circuit; carrying out the measuring operation in which a measuring capacitance of the heating wire is determined with respect to a reference potential by way of a detection circuit; and carrying out a test phase falling within the time frame of the measuring operation.


    Access

    Download


    Export, share and cite



    Title :

    ELECTRICAL CIRCUIT CONFIGURATION FOR ALTERNATING HEATING AND CAPACITIVE MEASURING OPERATION WITH FUNCTIONAL TESTING AND ASSOCIATED METHOD AND USE


    Contributors:

    Publication date :

    2025-05-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / H05B ELECTRIC HEATING , Elektrische Heizung



    ELECTRIC CIRCUIT STRUCTURE FOR AN ALTERNATING HEATING AND CAPACITIVE MEASURING MODE, AND ASSOCIATED METHOD

    SCHNEIDER MANFRED / DANIEL GEORG / WIELAND FRIEDRICH | European Patent Office | 2023

    Free access




    Alternating current generating circuit and heating device

    OHNUKI YASUMICHI | European Patent Office | 2023

    Free access