TLE5010 Datasheet, PDF (12/56 Pages) Infineon Technologies AG – GMR Based Angular Sensor

TLE5010
Draft
General
The output signal of each bridge is only unambiguous over 180° between two maxima.
Therefore two bridges are orientated orthogonal to each other.
Using the ARCTAN function, the true 360° angle value can be calculated which is
represented by the relation of the X and Y signals.
As only the relative values influence the result, the absolute size of the two signals is of
minor importance. Therefore most influences to the amplitudes are compensated.
Y Component (SIN)
V
0°
V_Y
V_X
X Component (COS)
V_X (COS)
90°
180°
270°
360°
Angle α
Figure 4 Ideal Output of the GMR Sensor
V_Y (SIN)
Preliminary Data Sheet
12
V 0.9, 2007-05