Open loop current sensor
The Hall device directly detects the primary magnetic field generated by the current in the primary conductor, and linearly amplifies the output voltage signal. The sensor uses a unique stabilization and temperature compensation circuit to minimize the effects of external voltage and temperature on the sensor.
Closed loop current sensor
The Hall device is used to detect the primary magnetic field generated by the current in the primary conductor, and after amplification, the secondary current is generated, and the secondary winding flowing through the reverse winding generates a secondary magnetic field; when the primary and secondary magnetic fields are relatively balanced, The secondary current is proportional to the primary current, and the ratio is the reciprocal of the original and secondary side turns ratio.
Magnetic Resistence Current Sensor
esigned in accordance with Honeywell's patented technology, the CSN Series Magnetoresistive Current Sensors provide superior sensor performance and high accuracy in current measurement applications. The current sensor uses an ASIC (Application Specific Integrated Circuit) and a magnetoresistive (MR) Honeywell magnetic sensor with extremely low temperature drift, so the measurement results are stable, repeatable and highly accurate. The sensor operates from a +5 volt unipolar supply with an internal voltage reference of 2.5 volts, which is very easy to obtain.