Circuit assemblage for carrying out a comparison

A circuit assemblage for carrying out a comparison between a first signal and a second signal in consideration of a reference signal, the circuit assemblage comprising:

• a first channel in which the first signal is processed, and a second channel in which the second signal is processed, a first differential amplifier, which obtains a first difference between the first signal and the reference signal, and a first unit for obtaining an absolute value, which obtains a first absolute value from the first difference, being provided in the first channel, and a second differential amplifier, which obtains a second difference between the second signal and the reference signal, and a second unit for obtaining an absolute value, which obtains a second absolute value from the second difference, being provided in the second channel;
• a comparator that compares the first absolute value with the second absolute value;
• and
• a toggle DC voltage converter.

A circuit assemblage for carrying out a comparison between a first signal and a second signal in consideration of a reference signal, the circuit assemblage comprising:

• a first channel in which the first signal is processed, and a second channel in which the second signal is processed, a first differential amplifier, which obtains a first difference between the first signal and the reference signal, and a first unit for obtaining an absolute value, which obtains a first absolute value from the first difference, being provided in the first channel, and a second differential amplifier, which obtains a second difference between the second signal and the reference signal, and a second unit for obtaining an absolute value, which obtains a second absolute value from the second difference, being provided in the second channel;
• a comparator that compares the first absolute value with the second absolute value;
• and
• a comparing system configured to activate a switch to bypass a toggle DC voltage converter.

A method for carrying out a comparison between a first signal and a second signal in consideration of a reference signal, comprising:

• processing the first signal in a first channel and processing the second signal in a second channel;
• in the first channel, obtaining, by a first differential amplifier, a first difference between the first signal and the reference signal, and obtaining, by unit for obtaining an absolute value obtains, a first absolute value from the first difference;
• in the second channel, obtaining, by a second differential amplifier, a second difference between the second signal and the reference signal, and obtaining, by a unit for obtaining an absolute value, a second absolute value from the second difference;
• comparing, by a comparator, the first absolute value with the second absolute value;
• and
• operating a coupling element through which a redundant voltage supply is supplied from the first channel or the second channel to a safety-relevant component.