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Current sensor ACS724 (ACS720 series)...
ACSENS-5A-ACS724
Current sensor ACS724 (ACS720 series) - 5A
In stock
Availability date:
L'ACS724 is an upgrade of the ACS712 previously sale on the MCHobby shop.
Based on the Allegro's ACS724 bidirectional ±5A ACS724LLCTR-05AB, this sensor is placed in series with the load on the AC circuit and can measure the current flowing in the chip. The sensor use the magnetic field created by the flowing current to measure the current (thank to the hall effect).
The sensor generates an output voltage proportional to the current flowing with a ratio of 0.100V/A (400 mV per amp). The output voltage is centered around 2.5V, allowing an Arduino microcontroler to read the input voltage on an analog input.
Please, remember that output signal frequency is identical to the frequency of the input current. When mesuring the current of an AC load, the sensor produce a sinus output signal oscilating around 2.5V volts.
Attention: the sensor is sensitive to magnetic field, so using a magnet around the sensor will disturb reading. Approching a magnet will from the sensor will modify the output voltage.
Note:
Wiring this sensor on a Breadboard or prototyping board may be a risk. High voltages connection point are freely available and any accidental contact may be the source of shock, hurt, burn... accidental contact may also cause death. If you do not have the needed skill to connect your project to the power grid then do not hesitate to ask help to a skilled person!
Please, be extremely carefull with high voltage.