Magnetic Field Sensor To Detect A Magnitude Of A Magnetic Field In Any Direction
First Claim
1. A magnetic field sensor, comprising:
- first and second magnetic field sensing elements having respective first and second maximum response axes, the first and second maximum response axes pointing along respective first and second different coordinate axes, wherein, in response to a magnetic field, the first and second magnetic field sensing elements are operable to generate first and second magnetic field signals; and
an electronic circuit coupled to receive the first and the second magnetic field signals,wherein the electronic circuit is configured to;
determine a magnitude of a vector sum of the first and the second magnetic field signals; and
provide one or more signals in response to the magnitude of the vector sum determined.
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Accused Products
Abstract
In one aspect, a magnetic field sensor includes first and second magnetic field sensing elements having respective first and second maximum response axes. The first and second maximum response axes point along respective first and second different coordinate axes. In response to a magnetic field, the first and second magnetic field sensing elements are operable to generate first and second magnetic field signals. The magnetic field sensor includes an electronic circuit coupled to receive the first and the second magnetic field signals. The electronic circuit is configured to determine a magnitude of a vector sum of the first and the second magnetic field signals and provide one or more signals in response to the magnitude of the vector sum determined.
58 Citations
35 Claims
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1. A magnetic field sensor, comprising:
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first and second magnetic field sensing elements having respective first and second maximum response axes, the first and second maximum response axes pointing along respective first and second different coordinate axes, wherein, in response to a magnetic field, the first and second magnetic field sensing elements are operable to generate first and second magnetic field signals; and an electronic circuit coupled to receive the first and the second magnetic field signals, wherein the electronic circuit is configured to; determine a magnitude of a vector sum of the first and the second magnetic field signals; and provide one or more signals in response to the magnitude of the vector sum determined. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A magnetic field sensor, comprising:
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first, second, and third magnetic field sensing elements having respective first, second and third maximum response axes, the first, second and third maximum response axes pointing along respective first, second, and third different coordinate axes, wherein, in response to a magnetic field, the first, second, and third magnetic field sensing elements are operable to generate first, second, and third magnetic field signals; and an electronic circuit coupled to receive the first, the second and the third magnetic field signals, wherein the electronic circuit is configured to; determine a magnitude of a vector sum of the first, the second and the third magnetic field signals; and provide one or more signals in response to the magnitude of the vector sum determined. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method comprising:
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receiving a first magnetic field signal from a first magnetic field sensing element; receiving a second magnetic field signal from a second magnetic field sensing element, the first and second magnetic field sensing elements having respective first and second maximum response axes, the first second and second maximum response axes pointing along respective first and second different coordinate axes, wherein, in response to a magnetic field, the first and second magnetic field sensing elements are operable to generate the first and the second magnetic field signals; determining a magnitude of a vector sum of the first and the second magnetic field signals; and providing one or more signals in response to the magnitude of the vector sum determined. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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Specification