ماژول اندازه گيري جريان 20 آمپر ACS712

The 20A range Current Sensor Module ACS712 consists of a precise, low-offset, linear Hall circuit with a copper conduction path located near the surface of the die.
Applied current flowing through this copper conduction path generates a magnetic field in which the Hall IC converts into a proportional voltage.
Sensing and controlling current flow is a fundamental requirement in a wide variety of applications including, over-current protection circuits, battery chargers, switching mode power supplies, digital watt meters, programmable current sources, etc.
This ACS721 current module is based on the ACS712 sensor, which can accurately detect AC or DC current.
The maximum AC or DC that can be detected can reach 20A, and the present current signal can be read via analog I / O port of Arduino.
Note
ACS712 is based on the principle of the Hall test
Features
Low-noise analog signal path
Device bandwidth is set via the new FILTER pin
5 µs output rise time in response to step input current
Small footprint, low-profile SOIC8 package
2.1 kVRMS minimum isolation voltage from pins 1-4 to pins 5-8
5.0 V, single supply operation
66 to 185 mV/A output sensitivity
Output voltage proportional to AC or DC currents
Factory-trimmed for accuracy
Extremely stable output offset voltage
Nearly zero magnetic hysteresis
The ratiometric output from the supply voltage.
Supply Voltage: 4.5V~5.5V DC
Measure Current Range: 20A
Sensitivity: 100mV/A
Package Includes
1 x 20A Range Current Sensor Module ACS712.