High Sensitivity Hall Effect Current Sensor Anti-Interference And Low Power Consumption
The Hall sensor is a magnetic field sensor made according to the Hall effect. Hall effect is a kind of magnetoelectric effect. This phenomenon was discovered by Hall (A.H.Hall, 1855-1938) in 1879 when he was studying the conductive mechanism of metals. Later, it was found that semiconductors and conductive fluids also have this effect, and the Hall effect of semiconductors is much stronger than that of metals. Various Hall elements made of this phenomenon are widely used in industrial automation technology, detection technology and information processing, etc. aspect. The Hall effect is a basic method for studying the properties of semiconductor materials. The Hall coefficient measured by the Hall effect experiment can determine important parameters such as the conductivity type, carrier concentration, and carrier mobility of semiconductor materials.
Hall current sensor advantages:
1. High sensitivity:
The intensity of the detected signal is getting weaker and weaker, which requires the sensitivity of the magnetic sensor to be greatly improved.
Applications include current sensors, angle sensors, gear sensors, and space environment measurement.
2. Temperature stability:
More application fields require sensors to work in increasingly harsh environments;
This requires that the magnetic sensor must have good temperature stability, and its industrial applications include the automotive electronics industry.
3. Anti-interference:
In many fields, there is no evaluation of the use environment of the sensor, so the sensor itself is required to have good anti-interference. Including automotive electronics, water meters, etc.
4. High frequency characteristics:
With the promotion of application fields, the operating frequency of current sensors is required to be higher and higher. Application fields include water meters, automotive electronics industry, and information recording industry.
5. Low power consumption:
Many fields require the sensor itself to have extremely low power consumption, so as to prolong the service life of the sensor.
It is applied to implant magnetic biochips, compasses, etc. in the body.
This is the end of the sharing of the advantages of the Hall current sensor, except for those mentioned above;
The Hall current sensor also has good heat insulation and pressure resistance characteristics and excellent flame retardant characteristics.
Installation | Standard rail+Plane screw fixation |
Original side rated current | 50A;100A;200A;500A; 800A;1000A;customization |
Original side measurement range | 100A-1200A |
Rated output | 5V;DC0~20mA;DC4~20mA;customization |
Auxiliary power supply | DC12V,DC24V,DC±12V,DC±15V |
Load capacity | Voltage output:5mA; Current output:6V; |
Linearity | 0.005 |
Accuracy | 0.01 |
Response time | <200ms |
Temperature drift | ≤500PPM/℃ |
Band width | DC~20KHz |
Consumption of current | ≤25mA |
Working temperature | -10℃~+70℃ |
Storage temperature | -25℃~+85℃ |
Isolation pressure resistance | 2.5kV/50Hz,1Min |
Offset voltage | ≤20mvV |
Zero output | ≤0.15mA |
di/dt follow | >50A/uS |
Electrical parameters
Parameter | Symbol | Unit | Specification | Conditions | ||
Min | Type | Max | ||||
Nominal Measuring Range | IPN | A | -500 | 500 | ||
Supply Voltage | UC | V | 7.2 | 12 | 18 | Full accuracy |
Current Consumption @IP=0A | IC | mA | 26 | UC=12V, T=25°C | ||
Current Consumption @IP=500A | IC | mA | 250 | UC=12V, T=25°C | ||
Sensitivity error Accuracy | XG | % | -0.5 | 0.5 | =-40 to 85°C; | |
Offset=0A | IOS | A | ±0.2 | =-40 to 85°C; ± 3 sigma | ||
Linearity error with IPN | εL | % | 0.1 | @room temperature | ||
Temperature coefficient of G | TCG | ppm/ |
CAB-500 CAN Output specification
CANBUS speed refer to product version table, CANBUS protocol: version 2.0A/B
CAN oscillator tolerance: 0.3125%
Byte order: big endian (Motorola)
120 ohm termination resistor to be added externally, internal CAN impedance = 2.4Kohm
Message Description | CAN ID | name | Data Length (bytes) | Type of frame | Message launch type | Signal description | Signal Name | Start bit | End bit |
Current Ip (mA) | 0x3C2 | CAB500 | 8 | stand ard | Cyclic message every 10ms | Ip Value: 80000000H= 0mA, 7FFFFFFFH= - 1mA, 80000001H= 1mA | IP_VALUE | 0 | 31 |
b0:Error information (0=Normal ,1=failure) | ERROR_INDICATION | 32 | 32 | ||||||
b7-b1:RxQuality (0-100%) | ERROR_INFORMATION | 33 | 39 | ||||||
Vacant bits (fix to 0) | UNDEFINE | 40 | 47 | ||||||
PCBA Ver | 48 | 55 | |||||||
FIRMWARE Ver | 56 | 63 |