The closed-loop (magnetic balance) Hall current sensor
Product Description
PRODUCT OVERVIEW
The sensor works on the principle of direct measurement Hall detection. The magnetic flux generated by the primary current is gathered in the magnetic circuit, and the Hall voltage signal is detected by the Hall device. After amplification by the amplifier, the voltage signal accurately reflects the primary current.
Product Features
Measures AC, DC and pulsed signals
Excellent accuracy, good linearity
Strong resistance to external interference, high common mode rejection ratio
Low temperature drift, low power consumption, wide frequency band
Perforated structure, no insertion loss
Scope of Application
AC frequency conversion speed regulation
Servo motor traction
Uninterruptible power supply(UPS)
Welding machine, battery power supply
Technical Parameter
| Specification | 10A/2V | 20A/2V | 50A/2V | Unit | |
|---|---|---|---|---|---|
| IPN | Primary Rated Input Current | 10 | 20 | 50 | A |
| IP | Primary Current Measurement Range | 0～10 | 0～20 | 0～50 | A |
| VSN | Secondary rated output voltage | 2.5±2 | V | ||
| VC | The Power Supply Voltage | +5V(±5%) | V | ||
| IC | Current Consumption | ＜20 | mA | ||
| Vd | Insulation Voltage | Between primary and secondary circuits:2.5kV/50Hz/1min | |||
| εL | Linearity | ＜0.1 | %FS | ||
| X | Precision | TA=25℃:≤±0.5 | % | ||
| V0 | Offset Voltage | TA=25℃:≤±15 | mV | ||
| VOM | Magnetic Offset Voltage | Ip =0 after 3*IpN:≤±15 | mV | ||
| VOT | Offset voltage temperature drift | Ip=0 TA=-40～+80℃:≤±0.1 | mV/℃ | ||
| Tr | Response time | ≤1 | μS | ||
| f | Bandwidth(-1dB) | DC～200 | kHz | ||
| TA | Working Temperature | -40～+80 | ℃ | ||
| TS | Storage Temperature | -45～+85 | ℃ | ||
Shape and Installation Dimensions
Circuit link diagram
Note:
IpN:Primary current input direction
+ :Positive 5V power supply
G :Power ground
M :Secondary signal output
+ :Positive 5V power supply
G :Power ground
M :Secondary signal output
Installation Precautions
The sensor should be wired correctly, otherwise it may damage the internal components of the sensor
When the sensor is soldered to the circuit board, it needs to be soldered with a low-temperature soldering iron, and the time should not be too long, and secondly, the pins should not be squeezed by a large amount, otherwise the internal connection may be opened.