Content for ACS711


The Allegro ACS711 provides economical and precise solutions for AC or DC current sensing in <100 V audio, communications systems, and white goods. The device package allows for easy implementation by the customer. Typical applications include circuit protection, current monitoring, and motor and inverter control. The device consists of a linear Hall sensor 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 which is sensed by the integrated Hall IC and converted into a proportional voltage. Device accuracy is optimized through the close proximity of the magnetic signal to the Hall transducer. The output of the device has a positive slope proportional to the current flow from IP+ to IP– (pins 1 and 2, to pins 3 and 4). The internal resistance of this conductive path is 0.6 mΩ for the EX package, and 1.2 mΩ for the LC package, providing a non-intrusive measurement interface that saves power in applications that require energy efficiency. The ACS711 is optimized for low-side current sensing applications, although the terminals of the conductive path are electrically isolated from the sensor IC leads, providing sufficient internal creepage and clearance dimensions for a low AC or DC working voltage applications. The thickness of the copper conductor allows survival of the device at up to 5× overcurrent conditions.

Energy Monitoring Module for any Dev Board

“Measure voltage, current, active power, power factor, and electrical energy with any microcontroller through UART. The problem If we knew how much energy we use at each moment, I am convinced that we would use it better, just for the …

Robot Arm Built with Completely Re-made Servos

“6-axis robot arm built with hacked servos and 3D-printed parts demonstrating smooth inverse kinematic movements. This is a very long project in the making for me. You could say that it started when I ordered six endless servos in middle …