What is the current sensor?
current sensor is an electrical device that measures the flow of electric current along a specific electric line. This is done by performing a precise measurement of the voltage drop on the resistor located in the current path. This allows the current sensor to generate a current level estimate through the line. The current sensor output is administered either as a reading of a voltage or as a continuing current that is roughly proportional to the current level moving along the tested path.
Traditionally used to protect circuits from damage and general current reporting, current sensors are now used in a much wider application range. These include monitoring and improving performance; protection against excessive currents that can overload and endanger the line; and circuits operated by batteries such as battery rechargeable circuits. Rechargeable batteries can benefit mainly from current sensing, because without accurate measures, they can easily overload or otherwise useless.
The current sensor works by connecting to the active electrical line. Once the sensor is attached to the line, it reads the flow of electricity passing through the line as it passes through the resistor. A resistor is a device located in the current path that prevents the flow of electricity, usually used to control and conquer the amount of current moving lines. The voltage decreases in a corresponding manner when it passes through the resistor, depending on the overall level of resistance; By measuring the share of this decline, the sensor can calculate the total line of line.
There are two general approaches to contemporary sensing; Low side reduction and high side sensing. The low side reduction connects the sensor between the original load and the ground connection. This type of sensing provides a cheap method of turning the current, but has the disadvantage of adding further resistance to the grounding path of the line. On the other hand, the high side sensor connects the sensor between power and load. Usually requires a more expensive sensor - becauseA higher level of accuracy is required - but does not disturb the grounding current, such as the current sensing with the bottom side connections.