This pressure difference causes water to flow around the loop – just like the potential difference produced by a cell or battery causes electrical current to flow in a circuit.

Circuits that supply current (using positive current flow convention) are usually known as a current source and one that limits the current flow on the ground side is known as a sink.

Circuit breakers are a safety feature that automatically interrupts the flow of electricity in the face of a system fault or ...

As the current flows through the PTC thermistor, it will quickly heat up and its resistance will quickly increase to a point where the current flow will dramatically reduce, essentially removing the ...

Despite their designed current-handling capacity, such circuits still need current limiters and circuit breakers to protect them from fault conditions.

Most common current-limiting implementations have a voltage drop that’s too high for today's systems with their low-voltage supply rails; this design with its far lower voltage drop is a better fit.