Measuring Principle:

The Hall current sensor is based on the magnetic balance Hall principle. According to the Hall effect, a current Ip is applied from the control current terminal of the Hall element, and a magnetic field having a magnetic field strength B is applied in the normal direction of the Hall element plane. In a direction perpendicular to the current and magnetic field (ie between the Hall outputs), an electromotive force VH, called the Hall electromotive force, is generated on Rm, the magnitude of which is proportional to the product of the control current Ip and the magnetic field strength B.