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:
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.
The ACS712 is a current sensor that can work in both AC and DC modes. This sensor runs on 5V and outputs an analog voltage proportional to the measured current. This tool is made up of a series of precision Hall sensors connected by copper lines.
2. Can ACS712 measure AC current?
The ACS712 current sensing module includes the ACS712 IC, which uses the Hall Effect principle to measure DC/AC current. It is simple to use with microcontrollers like Arduino because it only has three pins, two of which are power supply pins and the other is an analog output pin.
3. How use ACS712 current sensor with Arduino?
The ASC712 Current Sensor Module board's screw terminals are linked in series with the motor and power supply. Then connect the VCC, GND, and OUT of the ASC712 board to +5V, GND, and A0 of Arduino. Now, in order to view the results, a 16×2 LCD is connected to Arduino.
4. What is the purpose of current sensor?
A current sensor is a device that detects and converts current to a measurable output voltage proportional to the current flowing through the measured path. There are many different types of sensors, and each one is designed for a specific current range and environmental condition.
I was rather skeptic to buy electrical products from online especially for the cheap prices labelled by robocraze.I received everything which was ordered (proper in count) and all the materials were in working order and brand new including this current sensor module. Only the delivery time could have been shorter with respect to the vicinity of the seller.
P
Prasanna Mathad
Worth product for money
The product matches the description and I'm satisfied with it. It was nicely packed and is working well.