Closed-loop current sensor

Closed-loop current sensors are core components in high-performance servo drives, CNC machines, and industrial robot motion control systems. Based on fluxgate or Hall-effect technology with zero-flux compensation, they deliver exceptional accuracy, excellent linearity, and ultra-low temperature drift.

These performance advantages are critical for achieving smooth and precise torque control, ensuring high positioning accuracy during complex, high-speed robotic movements, and enabling fast response to current transients to maintain superior dynamic control performance.

In applications demanding high static accuracy and long-term stability, closed-loop current sensors are the preferred choice. They are widely used in high-precision power analyzers, power quality monitoring equipment, and advanced metering systems.

By precisely compensating the magnetic field, closed-loop sensors minimize Hall element thermal drift and nonlinearity errors, maintaining exceptional measurement stability across a wide temperature range. This is critical for scientific research, standard calibration, and high-end battery capacity testing.

Closed-loop current sensors, with their excellent anti-interference capability, high isolation voltage, and outstanding reliability, are standard components in rail transit traction systems (high-speed rail, metro). They precisely monitor traction motor current, providing reliable feedback for safe and efficient train operation.

Additionally, in large industrial inverters, high-power rectifiers, and furnace power supplies, closed-loop sensors deliver robust current measurement solutions, ensuring system reliability and long-term stability in high-current applications.