Closed-Loop DCCTs incorporate a feedback loop that adjusts the magnetic field to nullify the effect of the primary current. This mechanism significantly enhances measurement accuracy, reduces the sensor’s sensitivity to external magnetic fields, and improves linearity and bandwidth. Closed-loop Hall effect sensors are widely used in applications requiring precise current control and monitoring, such as in power supplies, battery management systems, and electronic load equipment. Their ability to deliver accurate measurements even in harsh electrical environments makes them a reliable choice for critical applications.