Hall sensor
AssigneeTDK-Micronas GmbH
InventorsMaria-Cristina Vecchi, Martin Cornils
Life of this patent
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Abstract
A Hall sensor including multiple Hall elements which have a first terminal contact and a second terminal contact and a third terminal contact, the multiple Hall elements being electrically connected in series. The first terminal contacts and the third terminal contacts of the individual Hall elements are connected to each other, and the second terminal contacts of the Hall elements are supply voltage terminals or as Hall voltage taps. A beginning of a first branch being electrically connected in series to an end of a second branch, in such a way that the direction of the current flow through the Hall elements of the first branch is counter to the direction of the current flow through the Hall elements of the second branch.
Claims14
A Hall sensor having a plurality of Hall elements, . . . wherein the first and second branches are electrically connected in series, the first end of the first branch being electrically connected in series to the second beginning of the second branch, and the first beginning of the first branch being electrically connected in series to the second end of the second branch such that a first direction of current flow through the Hall elements of the first branch is counter to a second direction of current flow through the Hall elements of the second branch so that a vector product J1×B=−(J2×B) is fulfilled, where J1 is the current density vector in the Hall elements of the first branch and J2 is the current density vector in the Hall elements of the second branch and B is the vector of an applied magnetic field, and wherein at least four Hall voltage taps are provided, two of the Hall voltage taps being arranged in the first branch and two of the Hall voltage taps being arranged in the second branch and the Hall voltage taps being designed as middle contacts.
Dependencies are inferred from the claim text.