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How to identify the most suitable XENSIV™ sensor with the best-fit magnet?

How to identify the most suitable XENSIV™ sensor with the best-fit magnet?

First like received First question asked Welcome!

I was driving my nephew to school one day and while talking to him, he told me that he started taking driving lesson classes and how interested he was in how the engine works. Shortly after, he told me he finds it fascinating how engineers have come up with such inventions that would quickly for example, detect where the gear stick is currently positioned. I found this moment to be the perfect time to talk about sensor simulation tools since magnetic 3D sensors are used in this case and informed him on how one 3D sensor can replace 6 single hall switches. Trust me, he was interested in the topic, I wasn’t just being that annoying uncle during family gatherings who talks about their job to teenagers who are absolutely unbothered to know.

Now, while we are at it, for anyone who might be interested, I thought about writing this blog article and present the four XENSIV™ simulation tools which Infineon offers and are very helpful in matching the perfect Hall switch, calculate the angle error, designing the right magnetic circuit or find the most suitable external current rail design for your applications.

1. First off, we have XENSIV™ – Current Sensor Simulation Tool which is a tool developed for TLE4972 current sensor for external current measurements.

Figure 1. Current Sensor

Its primary role is to assists in designing and enhancing the busbar or multi-layer PCB design for the external current, sensed by the TLx4972. Additionally, the tool utilizes calculations to evaluate the sensor's behavior in various settings, and it also calculates key performance parameters such as resistance, field transfer factor, crosstalk for 3 phases, and sensor settings & max power dissipation. Additionally, the effect of the sensor's location on its performance will be displayed. To give you more or less an idea and a visualization, click here to see an example of the simulation results.

2. The next tool is XENSIV™ – 3D Magnetic Sensors Simulation Tool which is designed for getting the best magnetic circuit for a linear movement, an angular measurement (including Out-of-shaft or End-of-Shaft applications) or a joystick or lever movement, e.g. gear sticks.

lowres-INFIN_Icon_3D_Magnetic_Sensor 01.eps.pngFigure 2. 3D Magnetic Sensor

The simulation tool provides the magnetic x-y-z components of the sensor and further application specific parameters. For those interested, an example of the simulation result can be found here.

3. Simulation tool number three is XENSIV™ – Magnetic Hall Switches Simulation Tool which is primarily known for a having a portfolio full of switches that put emphasis on energy saving.

lowres-INFIN_Icon_HallSwitch_01.eps.pngFigure 3. Hall Switch

This tool allows you to simulate the magnetic field that is generated by different shaped permanent magnets. It can be used to test the individual performance of a specific sensor, or it can automatically find the best sensor for a given condition or environment. An illustration of the simulation following the six steps is provided here.

4. Last, but definitely not least important, is XENSIV™ – Magnetic Angle Sensors Simulation Tool which supports all magnetic in plane technologies: vertical Hall, GMR, AMR and TMR.

lowres-INFIN_Icon_AngleSensor_01.eps.pngFigure 4. Angle Sensor

This tool uses certain parameters, including magnetic properties, sensor specifications and assembly tolerances, to determine the appropriate distance between the magnet and sensor, as well as any potential assembly errors. An example result of the angle sensor can be found here.

On a final note, we can assume that magnetic sensor simulation tools are an important tool for engineers and scientists working in the field of magnetic sensing. These tools allow for the virtual testing and optimization of magnetic sensors, saving time and resources and providing valuable insights into the performance of the sensors.

For those who are curious, here you can find an Application Note on XENSIV™ Magnetic Current Sensors which shows you implementation guidelines for the XENSIV™ product family.
Additionally, the user manual can be accessed here.

For any questions, please write them down in the comments and I will gladly answer them!

Until next time, take care 🙂