Abstract: The present disclosure relates to high-voltage circuits. The teachings thereof may be embodied in a circuit apparatus for detecting a state of an interlock loop monitoring a high-voltage component. The apparatus may include a power connection to a voltage source; a ground connection; a positive connection to a line end of the electrical interlock loop; a negative connection to a second line end of the interlock loop; a measuring arrangement for a voltage potential at the negative connection when two mutually different currents flow from the power connection via the negative connection to the ground connection; and a detector arrangement comparing the two potential measurements at the two respective currents with two predefined potential reference values and ascertaining, based on the comparison results of the comparison unit, whether the negative connection is electrically short-circuited with the positive connection, the power connection, or the ground connection, or with none of these connections.

Abstract: The present disclosure relates to high-voltage circuits. The teachings thereof may be embodied in a circuit apparatus for detecting a state of an interlock loop monitoring a high-voltage component. The apparatus may include a power connection to a voltage source; a ground connection; a positive connection to a line end of the electrical interlock loop; a negative connection to a second line end of the interlock loop; a measuring arrangement for a voltage potential at the negative connection when two mutually different currents flow from the power connection via the negative connection to the ground connection; and a detector arrangement comparing the two potential measurements at the two respective currents with two predefined potential reference values and ascertaining, based on the comparison results of the comparison unit, whether the negative connection is electrically short-circuited with the positive connection, the power connection, or the ground connection, or with none of these connections.

Abstract: The invention relates to a method for the digital transmission of an analogue measuring signal (M), comprising the following steps: comparing momentary values of a triangular signal (D) with a value of the measuring signal (M) for generating a binary measurement pulse (PM); comparing momentary values of the triangular signal (D) with a predeterminable first reference variable (R1) for generating a binary reference pulse (PR) that corresponds to the measurement pulse (PM) and transmitting the measurement pulse (PM) and reference pulse (PR) at a constant phase.

Abstract: The invention relates to a method for the digital transmission of an analogue measuring signal (M), comprising the following steps: comparing momentary values of a triangular signal (D) with a value of the measuring signal (M) for generating a binary measurement pulse (PM); comparing momentary values of the triangular signal (D) with a predeterminable first reference variable (R1) for generating a binary reference pulse (PR) that corresponds to the measurement pulse (PM) and transmitting the measurement pulse (PM) and reference pulse (PR) at a constant phase.