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US 2016/0252599 A1Published application
Magnetic Field Sensor
AssigneeInfineon Technologies AG
InventorsMario MOTZ, Wolfgang SCHERR
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Abstract
Devices and methods are provided where switches associated with a magnetic field sensor are used to provide error information. In particular, a device is provided that includes a magnetic field sensor, a plurality of switches associated with the magnetic field sensor, and a control circuit configured to control the plurality of switches and to provide at least one signal indicative of a fault based on operation of the switches.
Claims20
A device, comprising:
- a magnetic field sensor,
- a plurality of switches associated with the magnetic field sensor, and
- a control circuit configured to control the plurality of switches and to provide at least one signal indicative of a fault based on operation of the switches.
A magnetic field sensor device, comprising:
- a magnetic field sensor, the magnetic field sensor comprising a plurality of terminals;
- a biasing source;
- at least one analog-to-digital converter;
- a plurality of switches;
- a controller, the controller being configured to control the plurality of switches to couple the biasing source and the analog-to-digital converter selectively with the plurality of terminals during a plurality of phases;
- and
- a summing circuit to provide at least two partial sums of outputs of the analog-to-digital converter in different phases of the plurality of phases.
4 more elements
A method, comprising:
- providing a magnetic field sensor;
- controlling switches associated with the magnetic field sensor, wherein controlling the switches comprises controlling at least some of the switches to provide a spinning current readout in a plurality of phases;
- and
- providing error information based on controlling the switches.
1 more element
Dependencies are inferred from the claim text.