Selection and Application of Hall Current Sensor

Hall current sensor, suitable for the isolation conversion of complex signals such as AC, DC, pulse, etc., through the Hall effect principle, the converted signal can be directly collected and accepted by various collection devices such as AD, DSP, PLC, secondary instrument, etc. , Small size, long life, easy installation, fast response time, wide current measurement range, high accuracy, strong overload capacity, good linearity, and strong anti-interference ability.

Hall current sensor classification:

1. Split open loop Hall

Features:

1. Accuracy level 1

2. Low cost can be made into open type, easy to install

3. Wide input range: 50A-20000A

4. Various output types, which can output 4V/5V/20mA/4-20mA

2. Closed open loop Hall

Features:

1. Accuracy level 1

2. Low cost can be made into open type, easy to install

3. Wide input range: 50A-20000A

4. Various output types, which can output 4V/5V/20mA/4-20mA

3. Closed-loop Hall current sensor

1. Accuracy 0.5 level

2. Large size, high power consumption and high cost

3. Input range: 10A-2000A

4. Fast response time: ≤1us

5. Frequency bandwidth: ≤100kHz

Application scenarios:

1. Industrial control:

Uninterruptible power supply (UPS), switching power supply (SMPS),

Power supply for welding machines, medical equipment, mobile communication equipment, elevators, forklifts, air conditioning and ventilation equipment, solar and wind power generation

2. Energy:

Process control, battery monitoring, energy measurement

3. Car:

Battery management, battery monitoring, energy measurement

4. Railway:

Applications on locomotives, converters, roadside applications and energy measurement

Selection:

1. Uninterruptible power supply (UPS)

In the UPS power system, the closed-loop Hall current sensor is used to measure the output current, and the UPS controller performs feedback control based on this current to ensure the normal operation of the inverter power supply. Because of its fast response speed, it is especially suitable for uninterruptible power supplies in computers.

The company's closed-loop Hall current sensor: AHBC-LTA, AHBC-LT1005, AHBC-LF.

2. Solar energy and wind energy

Hall current sensors are widely used in photovoltaic DC cabinets, photovoltaic inverters, wind power inverters and other occasions. The measuring end uses open-loop Hall current sensors: AHKC-BS, AHKC-E, AHKC-F, AHKC-K, etc. Series sensors. Control end closed-loop Hall current sensor: AHBC-LTA, AHBC-LT1005, AHBC-LF series sensors.

3.photovoltaic DC cabinet

Take a photovoltaic DC cabinet as an example. Take the photovoltaic DC cabinet that needs to monitor the output current and voltage of 8 photovoltaic combiner boxes as an example. Considering that the general confluence in the photovoltaic DC cabinet is connected with bronze and the cabinet space is limited, it is recommended to use 8 AHKC-BS 200A/5V Hall open-loop current sensor with a small volume (cooperating with AGF-D DC cabinet confluence acquisition device, it can calculate the real-time output current of the previous 8-channel combiner box, and it can also cooperate with 1 DC high voltage Voltage sensor ACTDS-DV/V realizes power and electric energy measurement.

4. mobile DC column head cabinet

The quality of the power supply in the data center directly affects the safe operation of IT equipment. Therefore, it is very important to monitor the power supply in and out of the data center cabinets, and the main incoming line current and multi-branch DC current can be collected through the Hall sensor. . AHKC-F, AHKC-K series of open-loop sensors can be used to measure the current of the main line of the mobile DC column head cabinet. Branch current measurement

Mobile DC column head cabinet applications can recommend our company's open-loop Hall current sensors: AHKC-BS, AHKC-E, AHKC-F, AHKC-K and other series of open-loop sensors.

For more information, please contact us at sales@xfullstar.com