Patent ID: 8917108

Claim:
A device ( 10 ) for monitoring operating parameters, comprising: a comparison element for generating an output signal (S 4 ) by comparing switching states of a first input signal and a second input signal (S 2 , S 3 ) at a first input and a second input, respectively, of the comparison element ( 11 ), wherein the output signal indicates that an operating parameter has fallen below or has exceeded a predefined threshold; and a first operating parameter-dependent device and a second operating parameter-dependent device for generating the first input signal and the second input signal, respectively, wherein depending on the current value of the operating parameter the switching behavior thereof is subject to a time delay; wherein a clock signal (S 1 . 1 ) is applied to the first and second operating parameter-dependent devices and serves as a respective input signal of the first and second operating parameter-dependent devices; and wherein a predefined time delay is created between the first and second input signals (S 2 , S 3 ) of the comparison element, which is produced by a delay element ( 14 ); and wherein the delay of the delay element ( 14 ) has a value such that when the predefined threshold of the operating parameter is exceeded, one of the first and second input signals (S 2 , S 3 ) changes its switching state due to the predefined time delay, at the times predefined for the comparison element ( 11 ) by the clock signal (S 1 . 1 ), and so the comparison element ( 11 ) indicates this disparity and thus signals that the threshold of the operating parameter has been exceeded.