The function of current sensor is to convert the measured current information into standard electrical signals to realize the monitoring, protection and control functions of circuit system. It can be divided into the following aspects:
Core functions and functions
Current signal conversion
Through the Hall magnetic balance principle or electromagnetic induction, the current signal is converted into a transmittable and processable electrical signal (such as voltage or digital signal), providing a basis for subsequent circuit analysis.
Circuit protection and safety control
Protection mechanism is triggered under abnormal conditions such as overcurrent and overvoltage, for example:
In new energy vehicles, the battery management system (BMS) is used to monitor the current to prevent overcharging or overdischarging of the battery;
In industrial power systems, cable loads are monitored in real time to avoid equipment damage.
Energy management and efficiency optimization
Applied to frequency conversion technology and smart grids, measuring frequency conversion power (voltage, current, power, etc.), optimizing the energy efficiency of hybrid vehicles, solar power generation and other systems;
Dynamically adjust the load in power distribution to reduce power outage time caused by grid failure.
Data Collection and Status Monitoring
Real-time collection of battery pack voltage, temperature and other parameters to assist in determining the power status and insulation condition;
Cooperate with inertial navigation systems and other equipment to improve vehicle control accuracy.