Description
A shunt is a resistive element. When current passes through it a small voltage drop will occur over the shunt. If the current is small the voltage will be low, and if the current is large the voltage will be higher. If the current flow reverses, the voltage drop will change polarity. The voltage of the shunt is an indication of the amount of current and the direction of the current. This information can be used to find out how much current runs into a system or for battery state of charger calculation.