What is a current sensor switch?

Introduction. This article describes a versatile electronic switch circuit that can be used to switch a load when it senses current flowing in another circuit. The current sensing is done in a non invasive way that does not require modification of the circuit being monitored.

How do I connect a current sensor to my Arduino?

The screw terminals of the ASC712 Current Sensor Module board are connected in series with the motor and power supply as shown in the circuit diagram. 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.

What is current sensor module?

The 30A 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.

What is the output of current sensor?

Current Sensor detects the current in a wire or conductor and generates a signal proportional to the detected current either in the form of analog voltage or digital output. Current Sensing is done in two ways – Direct sensing and Indirect Sensing.

How does current sensor measure current?

How do current sensors work? When current flows through a conductor, it creates a proportional magnetic field around the conductor. The sensor then outputs a certain voltage or current that a meter connected to the sensor can read and translate into the amount of current flowing through the conductor.

How does shunt current sensor work?

How does a shunt work? A shunt is a low-ohm resistor that can be used to measure current. The entire current flows through the shunt and generates a voltage drop, which is then is measured. Using Ohm’s law and the known resistance, this measurement can then be used to calculate the current (I = V/R).

What is hall effect current sensor?

A hall effect current sensor allows non-contact detection of direct and alternating currents, using a hall element, a magnet-electric converting element. This minimizes power loss of the target current circuit and has a simple structure with high reliability.