First of all, note that the circuit as it stands is only really intended to show how a basic current sensor module can be built and act as a stimulus for further improvement. The design is centered ...

Allegro's ACS37030 50-A current sensor protects wide-bandgap GaN devices by sensing current over the industry’s widest frequency range for automotive, industrial, and ...

While LEDs are common in voltage detection applications, I have never seen an LED circuit that is dedicated to indicating the presence of low values of current flow. This simple LED current sensor ...