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CSNE151-100 Closed-loop Current Sensor For Automotive Electronics Robot
Working Principle:
Based on the magnetic compensation principle, it belongs to a closed-loop current sensor of magnetoresistive or Hall effect type. Using the zero-flux method (feedback system), it continuously controls the magnetic flux in the sensor core to zero. The current required to balance the zero flux is proportional to the primary current flowing through the conductor. This closed-loop current, as the device output, reflects the primary current scaled down by the turns ratio of the primary and secondary windings, which can be converted to voltage via a resistor.
Electrical Parameters:
Rated Current: 25A.t rms.
Measurement Range: 0~±50A.t rms, 0~±90A.t rms.
Measurement Resistance: At ±15V power supply, 54360Ω for max ±25A, 54150Ω for max ±50A, 5454Ω for max ±90A.
Analog Output Current: 25mA.
Turns Ratio: 1-2-3-4:1000.
Accuracy: +25°C @25A: 优于 ±0.25% In (better than ±0.25% of rated current).
Supply Voltage: ±12 to 15V (±5%).
Accuracy - Dynamic Parameters:
Zero Offset Current: @+25°C: 优于 ±0.15mA (better than ±0.15mA).
Offset Current Temperature Drift: 0~70°C: 优于 ±0.6mA (better than ±0.6mA).
Linearity: 优于 ±0.2% (better than ±0.2%).
Response Time: @50%: 优于 200ns (better than 200ns).
Bandwidth: DC to 200kHz.
di/dt Accurate Tracking: 〉50A/μs.
Other Parameters:
Electrical Insulation: 50Hz/1min, 5kV.
Operating Temperature Range: -40°C…+85°C.
Storage Temperature Range: -40°C…+90°C.
Current Consumption: 12 + output current mA.
Secondary Internal Resistance: (+70°C) 66Ω.
Primary Internal Resistance: <1.25/turn mΩ.
Weight: 14g.
Sensor Housing Material: PBT with 30% glass fiber (UL94-V0 grade).
Product Features:
High measurement accuracy based on magnetic compensation principle.
Capable of measuring DC, AC, or pulsating current, with wide applicability.
Electrical isolation between primary/secondary circuits, ensuring safety and anti-interference.
Small zero offset current and low temperature drift, maintaining stable performance in different temperature environments.
Short response time, enabling fast and accurate tracking of current changes to meet measurement requirements for rapidly varying currents.
Application Fields:
Industrial Sector: Current monitoring and control for equipment such as motors, frequency converters, and welding machines to ensure normal operation and safety.
Automotive Electronics: Used in battery management systems for electric vehicles, automotive engine control systems, etc., to monitor current for energy management and fault diagnosis.
Communication & Networking: Monitors current in power systems to ensure stable power supply and efficient energy use for communication devices.
Robotics: Applied in robot drive systems to accurately measure motor current for precise control of robot movement.
Analog Output Current
25mA
Turns Ratio
1-2-3-4:1000
Accuracy (+25℃@25A)
Better than ±0.25% In (In = rated current)
Supply Voltage
±12 to 15V (±5%)
Zero Offset Current (+25℃)
Better than ±0.15mA
Offset Current Temperature Drift (0~70℃)
Better than ±0.6mA
Linearity
Better than ±0.2%
Response Time (@50%)
Better than 200ns
Bandwidth
DC to 200kHz
di/dt Tracking Capability
〉50A/μs
Electrical Insulation
50Hz/1min, 5kV
Operating Temperature Range
-40℃~+85℃
Storage Temperature Range
-40℃~+90℃
Current Consumption
12mA + output current
Secondary Internal Resistance (+70℃)
66Ω
Primary Internal Resistance
<1.25mΩ/turn
Weight
14g
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Trading Company
Year Established:
2006
Total Annual:
900000-1000000
Employee Number:
50~80
Ecer Certification：
Verified Supplier
Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, ph... Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, ph...
