# US 2017/0285116 A1 · Magnetic sensor

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- Number: US 2017/0285116 A1
- Document ID: US20170285116A1
- Status: Published application
- Kind: A1
- Application number: 15/475,910
- Filed: 2017-03-31
- Published: 2017-10-05
- Earliest claimed: 2016-04-01
- Assignees: Johnson Electric S.A.
- Applicants: Johnson Electric S.A.
- Inventors: Hui Min GUO; Shu Zuo LOU; Xiao Ming CHEN; Guang Jie CAI; Chun Fai WONG; Xiao HUO
- Web page: https://patentgrep.com/patent/US20170285116A1

## CPC

- G01R 33/07: Hall effect devices
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)

## Abstract

A magnetic sensor disclosed according to the present application is provided, which includes at least two magnetic sensing elements forming at least one magnetic sensing element pair, and currents in the magnetic sensing elements in each of the at least one magnetic sensing element pair are reverse and the magnetic sensing elements are arranged symmetrically.

## Claims

### Claim 1

A magnetic sensor, comprising:
at least two magnetic sensing elements,
wherein the at least two magnetic sensing elements form at least one magnetic sensing element pair, and currents in the magnetic sensing elements are reverse and the magnetic sensing elements are arranged symmetrically in each of the at least one magnetic sensing element pair.

### Claim 2 (depends on 1)

The magnetic sensor according to claim 1, wherein each of the magnetic sensing elements comprises four contact terminals; and the contact terminals of each of the magnetic sensing elements are in connection with corresponding contact terminal buses respectively to form bus contact terminals.

### Claim 3 (depends on 2)

The magnetic sensor according to claim 2, wherein each of the magnetic sensing elements is in a cross shape, and the four contact terminals are respectively arranged at four endpoints of the magnetic sensing element.

### Claim 4 (depends on 2)

The magnetic sensor according to claim 2, wherein the contact terminals of each of the magnetic sensing elements are connected to the corresponding contact terminal buses via connecting lines having a same length.

### Claim 5 (depends on 1)

The magnetic sensor according to claim 1, wherein the magnetic sensing elements in the magnetic sensing element pair have a same geometrical shape.

### Claim 6 (depends on 1)

The magnetic sensor according to claim 1, wherein the magnetic sensing elements in different magnetic sensing element pairs have different geometrical shapes.

### Claim 7 (depends on 1)

The magnetic sensor according to claim 1, wherein a geometrical arrangement of the at least one magnetic sensing element pair is in a square shape, a diamond shape or a circular shape.

### Claim 8 (depends on 1)

The magnetic sensor according to claim 1, comprising:
four magnetic sensing elements arranged in a square semiconductor substrate; wherein the magnetic sensing elements located at four diagonal positions of the square semiconductor substrate, and two diagonal magnetic sensing elements form a magnetic sensing element pair.

### Claim 9 (depends on 8)

The magnetic sensor according to claim 8, wherein the two magnetic sensing elements arranged at diagonal positions are obliquely arranged at a same angle.

### Claim 10 (depends on 1)

The magnetic sensor according to claim 1, wherein the at least one magnetic sensing elements are located on edges of a circle.

### Claim 11

A magnetic sensor, comprising:
at least one magnetic sensing element pair, and each of the at least one magnetic sensing element pair comprising two magnetic sensing elements;
wherein currents in the two magnetic sensing element are reverse and the two magnetic sensing elements are arranged symmetrically in each of the at least one magnetic sensing element pair.

### Claim 12 (depends on 11)

The magnetic sensor according to claim 11, wherein each of the two magnetic sensing elements comprises four contact terminals; and the contact terminals of each of the two magnetic sensing elements are in connection with corresponding contact terminal buses respectively to form bus contact terminals.

### Claim 13 (depends on 12)

The magnetic sensor according to claim 12, wherein each of the two magnetic sensing elements is in a cross shape, and the four contact terminals are respectively arranged at four endpoints of the magnetic sensing element.

### Claim 14 (depends on 12)

The magnetic sensor according to claim 12, wherein the contact terminals of each of the two magnetic sensing elements are connected to the corresponding contact terminal buses via connecting lines having a same length.

### Claim 15 (depends on 11)

The magnetic sensor according to claim 11, wherein the two magnetic sensing elements in the magnetic sensing element pair have a same geometrical shape.

### Claim 16 (depends on 11)

The magnetic sensor according to claim 11, wherein the two magnetic sensing elements in different magnetic sensing element pairs have different geometrical shapes.

### Claim 17 (depends on 11)

The magnetic sensor according to claim 11, wherein a geometrical arrangement of the at least one magnetic sensing element pair is in a square shape, a diamond shape or a circular shape.

### Claim 18 (depends on 11)

The magnetic sensor according to claim 11, comprising:
four magnetic sensing elements arranged in a square semiconductor substrate; wherein the magnetic sensing elements located at four diagonal positions of the square semiconductor substrate, and two diagonal magnetic sensing elements form a magnetic sensing element pair.

### Claim 19 (depends on 18)

The magnetic sensor according to claim 18, wherein the two magnetic sensing elements arranged at diagonal positions are obliquely arranged at a same angle.

### Claim 20 (depends on 11)

The magnetic sensor according to claim 11, wherein the at least one magnetic sensing elements are located on edges of a circle.
