Anglular position detection utilizing a plurality of rotary configured magnetic sensors
First Claim
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1. A magnetic sensing method, comprising:
- providing a die comprising a central location thereof;
locating a plurality of magnetoresistive bridge circuits upon said die, said plurality of magnetoresistive bridge circuits comprises a rotary AMR array configuration;
biasing said plurality of magnetoresistive bridge circuits with a magnetic field rotating about an axis of said central location of said die in order to generate a plurality of bridge output signals thereof, wherein said plurality of magnetoresistive bridge circuits are biased utilizing a magnetic biasing component; and
processing said plurality of bridge output signals in order to determine position data thereof.
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Abstract
A magnetic sensing method and system include a die comprising a central location thereof. A group of magnetoresistive bridge circuits are located and configured upon the die. A magnetic biasing component is then utilized to bias the plurality of magnetoresistive bridge circuits with a magnetic field rotating about an axis of the central location of the die in order to generate a plurality of bridge output signals thereof. Finally, the plurality of bridge output signals are processed in order to determine position data thereof.
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Citations
21 Claims
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1. A magnetic sensing method, comprising:
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providing a die comprising a central location thereof;
locating a plurality of magnetoresistive bridge circuits upon said die, said plurality of magnetoresistive bridge circuits comprises a rotary AMR array configuration;
biasing said plurality of magnetoresistive bridge circuits with a magnetic field rotating about an axis of said central location of said die in order to generate a plurality of bridge output signals thereof, wherein said plurality of magnetoresistive bridge circuits are biased utilizing a magnetic biasing component; and
processing said plurality of bridge output signals in order to determine position data thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. (canceled)
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12. A magnetic sensing system, comprising:
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a die comprising a central location thereof;
a plurality of magnetoresistive bridge circuits located upon said die, wherein said plurality of magnetoresistive bridge circuits comprises a four bridge 45°
rotary AMR array configuration;
a magnetic biasing component for biasing said plurality of magnetoresistive bridge circuits with a magnetic field rotating about an axis of said central location of said die in order to generate a plurality of bridge output signals thereof; and
a module for processing said plurality of bridge output signals in order to determine position data thereof. - View Dependent Claims (13, 14, 15, 16, 17, 18, 20, 21)
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19. (canceled)
Specification