Hall Current Sensor Module ACS712 20A model

Hall Current Sensor Module ACS712 20A model

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SKU: ACS71220
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Description

The 20A ACS712 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.

Connection Diagram of Arduino Uno with Current Sensor :

Interfacing a current sensor with Arduino uno

Fig: Connection of ACS712 Current Sensor with Arduino UNO

Curve of relation between the DC input voltage and measuring current:

Fig: Output Voltage vs. Sensed Voltage


Features:

  • Hall Effect-Based Sensor: Utilizes the Hall effect for current measurement, providing electrical isolation.
  • Analog Voltage Output: Produces an analog voltage proportional to the current passing through the sensor.
  • High Accuracy: Offers precise current measurement with low offset and linear output.
  • Wide Measurement Range: Can measure currents from -20A to +20A.
  • Sensitivity: 100mV/A, meaning the output voltage changes by 100mV for every ampere of current.
  • Supply Voltage: Operates at 5V.
  • Compact Size: Dimensions are typically around 32x15mm

Applications:

  • Power Monitoring: Used to monitor power consumption in various devices and systems.
  • Battery Management Systems: Measures current flow in battery-operated systems to ensure proper charging and discharging.
  • Motor Control: Provides precise current measurement for controlling motors in various applications.
  • Overcurrent Protection: Detects overcurrent conditions to protect circuits from damage.
  • Inverters and SMPS: Used in inverters and switch-mode power supplies (SMPS) for current measurement and control.
  • Electric Vehicle Charging Stations: Monitors and controls current in high-power charging stations.
  • Heavy Machinery: Measures current in heavy machinery for performance analysis and maintenance.
  • Automotive Applications: Used in automotive systems like power steering and inverters.

Specifications:

Sensitivity 100mV/A
Measure Current Range 20A
Supply Voltage 4.5V~5.5V DC
Dimensions  5 x 4 x 3cms
Weight 5 grams

 

Package Includes:

1 x 20A ACS712 Current Sensor