Abstract: A magnetic field sensing apparatus including a magnetic flux concentrator and a plurality of magnetoresistance units is provided. The magnetic flux concentrator has a top surface, a bottom surface opposite to the top surface, and a plurality of side surfaces connecting the top surface and the bottom surface. The magnetoresistance units are respectively disposed beside the side surfaces. The magnetoresistance units are electrically connected to form at least one kind of Wheatstone full bridge in three different periods, so as to measure magnetic field components in three different directions, respectively, and to cause the at least one kind of Wheatstone full bridge to output three signals corresponding to the magnetic field components in the three different directions, respectively.

Abstract: A measurement method is configured to measure an external magnetic field. The measurement method includes: modifying a magnetic field distribution of the external magnetic field, so as to convert at least a portion of each of components of the external magnetic field in a first direction, a second direction, and a third direction at a plurality of different positions to the second direction, and sensing a magnitude of a magnetic field in the second direction at the different positions, so as to measure component magnitudes of the external magnetic field in the first, second and third directions.

Abstract: A magnetic field sensing module including a plurality of magnetic flux concentrators and a plurality of sensing elements is provided. Each of the magnetic flux concentrators extends along a first extension direction, and the magnetic flux concentrators are arranged along a second direction. The sensing elements are respectively disposed at a position corresponding to a position between the magnetic flux concentrators and positions corresponding to two sides of the magnetic flux concentrators arranged along the second direction. Sensing directions of the sensing elements are substantially the same. A measurement method and a manufacturing method of a magnetic field sensing module are also provided.

Abstract: A magnetic field sensing apparatus including a substrate, first, second, and third magnetic field sensing units, and a switching circuit is provided. The substrate has a surface, and has a first inclined surface and a second inclined surface. The first magnetic field sensing unit includes a plurality of magnetoresistance sensors connected together to form a Wheatstone full bridge and disposed on the surface. The second magnetic field sensing unit includes a plurality of magnetoresistance sensors connected together to form a Wheatstone half bridge and disposed on the first inclined surface. The third magnetic field sensing unit includes a plurality of magnetoresistance sensors connected together to form a Wheatstone half bridge and disposed on the second inclined surface. The switching circuit electrically connects the second magnetic field sensing unit and the third magnetic field sensing unit. A magnetic field sensing module is also provided.

Abstract: A magnetic field sensing module including a plurality of magnetic flux concentrators and a plurality of sensing elements is provided. Each of the magnetic flux concentrators extends along a first extension direction, and the magnetic flux concentrators are arranged along a second direction. The sensing elements are respectively disposed at a position corresponding to a position between the magnetic flux concentrators and positions corresponding to two sides of the magnetic flux concentrators arranged along the second direction. Sensing directions of the sensing elements are substantially the same. A measurement method and a manufacturing method of a magnetic field sensing module are also provided.

Abstract: A magnetic sensor is disclosed. The magnetic sensor includes a first magnetic sensing device, a second magnetic sensing device and a third magnetic sensing device. The first magnetic sensing device and the second magnetic sensing device sense X-axis and Y-axis magnetic fields. The third magnetic sensing device is a Hall device to sense Z-axis magnetic field by Hall effect. The first magnetic sensing device is disposed in a 90 degrees position related to the second magnetic sensing device.