Motor requires position sensor for higher precision
Nowadays, electrification is everywhere in every field (automotive, industrial control and consumer products). A clear trend is that brushed motors will gradually be replaced by brushless motors (DC brushless or permanent magnet synchronous). When driving different output loads, it is mainly to minimize the torque fluctuation of the motor. We need to accurately identify the needs of different application scenarios. Some applications do not require sensors, and some applications require high-precision, high-resolution position sensors. In order to further improve the performance, it is necessary to adopt a more accurate and effective motor commutation mode, and the conventional Hall switch method is too extensive. Therefore, a high-precision position sensor is imperative, and accurate, high-speed position detection can be realized, and Very low time delay. Obviously, in the future, humans will use more and more intelligent electrical equipment and new drive systems, all of which require more intelligent and accurate sensors as the basis.
Solution purchase considerations
The purchase of the motor control solution depends mainly on the actual application requirements and system cost budget. Of course, system accuracy can be an important selection criterion. When we select the right sensor for a motor control system, parameters such as resolution, linearity error, and delay need to be considered, and the output of the sensor must be stable enough to be immune to external stray magnetic fields and other electromagnetic interference.
Amers' solution
For automotive and industrial motor control applications, Amers Semiconductor offers a range of position sensors based on Hall technology. Thanks to our patented DAECTM (Dynamic Angle Error Compensation Technology), the sensor still maintains extremely high accuracy due to external stray magnetic field interference. Based on the patented DAECTM technology, users can achieve angular position detection with almost zero delay. Our sensors meet automotive-grade requirements and work well in harsh ambient temperatures.
