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New control techniques for electric drives pose new problems for the manufacturers of current sensors. In particular the sensorless control of permanent magnet synchronous machines places new demands on the current sensors used to measure the motor phase currents. The latest control techniques to determine the rotor position from the inductive signature of the electric machine require best performance...
The magnetoresistive (MR) sensing principle was first applied industrially in the read-heads of hard disc drives. However, in the past decade the MR effect has also been used successfully for sensors to measure position, current and magnetic fields. MR sensors offer a number of benefits compared to other technologies used for condition monitoring of machine spindles. They are more compact and offer...
The usage of magnetoresistive (MR) current sensors is increasing steadily in the field of power electronics. Current sensors must not only be accurate and dynamic, but must also be compact and robust. The MR effect is the basis for current sensors with a unique combination of precision and bandwidth in a compact package. A space-qualifiable magnetoresistive current sensor with high accuracy and high...
The usage of magnetic sensors is increasing steadily in the field of electric drives. Above all magnetoresistive (MR) sensors are experiencing a significant increase in applications in electrical drive systems, in the industrial, automotive and aerospace fields. MR sensors are not only used for measuring rotational and linear motion, but also for non-contact switching applications and furthermore...
The usage of magnetoresistive current sensors is increasing steadily in the field of power electronics. Sensors must not only be accurate and dynamic, but must also be compact and robust. An integrated SMT magneto-resistive current sensor as well as a 2 MHz bandwidth THT current sensor is introduced. Various future applications from the wide field of power electronics are shown that open up new possibilities...
Magnetoresistive sensors are not only used for measuring rotational and linear motion, but also for non-contact switching applications and furthermore for highly dynamic current measurement. This is largely the result of increasingly complex demands on the sensors for high performance electric drives. Sensors must not only be accurate and dynamic, but also be robust under difficult operating conditions...
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