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US 2003/0225539 A1Published application
Circuit configuration for processing a signal of a sensor and method of using the circuit configuration
AssigneeInfineon Technologies AG
InventorsMario Motz, Dieter Draxelmayr
Life of this patent
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Abstract
A circuit configuration for processing a signal of a sensor includes an amplifier for amplifying the signal of the sensor. This signal has switch-over points between different signal states. The circuit configuration is constructed in such a manner that the amplifier and the sensor operate continuously in a chopper mode. Furthermore, a control loop is provided for determining offset components in the signal of the sensor and for removing the offset components from the signal of the sensor.
Claims17
A circuit configuration, comprising:
- a sensor for providing a signal having switch-over points between different signal states;
- an amplifier for amplifying the signal of said sensor;
- and
- a control loop for determining offset components in the signal of said sensor and for removing the offset components from the signal of said sensor;
- said amplifier and said sensor configured for operating continuously in a chopper mode.
2 more elements
A method of using a circuit configuration, which comprises:
- providing a circuit configuration including:
- a Hall sensor for providing a signal having switch-over points between different signal states, an amplifier for amplifying the signal of the sensor, and a control loop for determining offset components in the signal of the sensor and for removing the offset components from the signal of the sensor, the amplifier and the sensor configured for operating continuously in a chopper mode;
- and
- using the circuit configuration in a sensor system for detecting a position of a toothed wheel.
1 more element
Dependencies are inferred from the claim text.