Position sensors are sensors, which measure linear or angular position. Following the trend towards robust and intelligent sensor systems and applications ams offers a broad portfolio of non-contacting (without physical contact), hall-based and intelligent magnetic position sensors with high reliability and long functional life. With these position sensor solutions we are serving high-growth applications within the automotive (safety critical automotive applications concerning transmission, pedal, steering, chassis), consumer (home appliances), industrial (manufacturing, building and office automation, medical) and robotics markets.
We offer our customers and potential customers more than just a product. Our value proposition supports high-performance, superior durability, adherence to the most stringent safety requirements, and best-in class stray field immunity. Based on our differential principle (patented technology) all ams magnetic position sensors can withstand external magnetic stray fields above the limits required by the most demanding OEM’s. This is growing increasingly in importance, especially in the automotive arena as the drivetrain of vehicles becomes partially or wholly electrified, the environment becomes more electromagnetically and mechanically harsh, and new standards such as ISO11452-8 (immunity to magnetic fields) and ISO26262 (functional safety) become adopted.
Based on the fact that rotary and linear magnetic sensor technology shows robust growth, and particular trends in the automotive industry, like the need for contactless technologies (increased need for precision & safety), improvements in reliability & precision, lower CO2 emissions requirements, cost reduction, and the increased use of brush-less (BLDC) motors favors ams. We are encouraged to put significant weight behind magnetic position sensors for applications in automotive systems. A vivid example of these automotive trends can be seen a BLDC Motor for electronic power steering (on-axis motor position sensing and control in an Electric Power Steering (EPS) system). The motor position sensor controls the commutation of a brushless DC motor employed in the system. Sophisticated position sensor ICs with multiple sensing elements on a single die enable faster and more accurate acquisition of information. Stability over temperature, robustness against tolerances and interfering field, high number of pole pairs, high speeds (up to 30.000 rpm), angle error below 1° degree, ISO26262-compliance and redundant magnetic position sensors eliminating the concern of “loss of assist” make an ams position sensor the leading solution for automobile EPS systems.