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US 8,284,083 B2Granted
Digital analog converter circuit and method for fault detection
AssigneeRobert Bosch GmbH
InventorNatalja Kehl
Life of this patent
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Abstract
A digital-analog converter circuit having a first subcircuit for converting a digital signal to an analog voltage, a second subcircuit for determining a first area in which the digital signal lies, a third subcircuit for determining a second area in which the analog voltage lies, and a fourth subcircuit for comparing the first and the second area. Also, a method for fault detection in a digital-analog converter circuit.
Claims11
A digital-analog converter circuit comprising:
- a first subcircuit for converting a digital signal to an analog voltage;
- a second subcircuit for determining a first area in which the digital signal lies;
- a third subcircuit for determining a second area in which the analog voltage lies;
- a fourth subcircuit for comparing the first area and the second area;
- and
- a fifth subcircuit for providing a fault signal with the aid of an output of the fourth subcircuit.
3 more elements
A method for fault detection in a digital-analog converter circuit, comprising:
- converting a digital signal to an analog voltage;
- determining a first area in which the digital signal lies;
- determining a second area in which the analog voltage lies;
- determining whether the first area corresponds to the second area;
- and
- detecting a fault if the first area does not correspond to the second area.
3 more elements
Dependencies are inferred from the claim text.