According to the different sizes of the measured voltage, users can connect a current limiting resistor R in series at one end of the measured voltage as needed🤪 before connecting it to the primary side of the sensor. The size of the series resistor R is determined by the f꧂ollowing formula: R=Vp/Iin Robin, where R is the series resistor, Vp is the measured voltage, Iin is the rated input current, and Rin is the internal resistance of the primary side of the sensor.

The current sensor can be connected to the transformer to form a current transformer; The voltage sensor can be connected to the converter to form a voltage converter. The converter can also be used separately. If the output signals of ཧother sensors are connected to the converter, the output signals of ordinary sensors can be transformed and amplified into standard signals of 0-20mA or 4-20mA for long-distance transmission or computer interface.

What are the types of Hall current sensors? There are many types of🍒 Hall current sensors on the market. So how are these sensors classified? Hall current sensors can be divided into open-loop Hall current sensors and closed-loop Hall current sensors based on their working principles:

1. The advantages of an open-loop Hall current sensor🌜 are its simple structure, good reliability, strong overload capacity, and small size.

2. The closed-loop Hall current sensor is characterized by high accuracy, fast response, and wide frequency band🐽.

In voltage source inverters, a fast overcurrent protection device is required, which can detect the current in each bridge arm using Hall current sensors. If the upper and lower bridge arms conduct electricity simultaneously due to commutation failure, the corresponding two sensors can simultaneously detect the current signal, which is converted into a square wave after comparing with the reference voltage. In this way, all inverter trigger pulses can be controlled and blocked thro🌠ugh the gate circuit, thereby achieving the goal of cutting off the gate drive circuit. The advantage of the voltage type inverter protection circuit is that as long as the current between the upper and lower bridge arms exceeds the reference, the protection circuit immediately acts. The Hall current sensor can also detect the main circuit signal of the variable frequency speed control system.