Current sensor package, arrangement and system

A current sensor system, comprising:

• a printed circuit board;
• and
• a current sensor package mounted on the printed circuit board;
• wherein the printed circuit board comprises a primary conductor and a calibration conductor, wherein the calibration conductor and the primary conductor are arranged in a defined spatial relation to each other on the printed circuit board, and wherein the primary conductor and the calibration conductor are electrically isolated from each other;
• and
• wherein the current sensor package comprises:
• a calibration current provider configured to provide a calibration current for the calibration conductor of the printed circuit board;
• a magnetic field sensor configured to sense a magnetic field of the primary current flowing in the primary conductor to provide a primary sensor signal and configured to sense a magnetic field of the calibration current flowing through the calibration conductor to provide a calibration sensor signal;
• and
• a controller configured to receive the primary sensor signal and the calibration sensor signal, and configured to calibrate the primary sensor signal based on the calibration sensor signal and the defined spatial relation between the primary conductor and the calibration conductor.

A means for sensing a current flowing in a primary conductor of a substrate, wherein the means for sensing the current comprises:

• a circuit means for providing a calibration current for a calibration conductor of the substrate, wherein the calibration conductor and the primary conductor are in a defined spatial relation to each other on the substrate, and wherein the calibration conductor and the primary conductor are arranged in a defined spatial relation to each other on the substrate, and wherein the primary conductor and the calibration conductor are electrically isolated from each other;
• a circuit means for sensing a magnetic field of the primary current flowing in the primary conductor to provide a primary sensor signal and for sensing a magnetic field of the calibration current flowing through the calibration conductor to provide a calibration sensor signal;
• and
• a circuit means for calibrating the primary sensor signal based on the calibration sensor signal and the defined spatial relation between the primary conductor and the calibration conductor.

A method for sensing a current flowing in a primary conductor of a substrate, the method comprising:

• providing a calibration current for a calibration conductor of the substrate using a circuit, wherein the calibration conductor and the primary conductor are arranged in a defined spatial relation to each other on the substrate, and wherein the primary conductor and the calibration conductor are electrically isolated from each other;
• sensing a magnetic field of the primary current flowing in the primary conductor using a sensing circuit to provide a primary sensor signal, and sensing a magnetic field of the calibration current flowing through the calibration conductor using the sensing circuit or another sensing circuit to provide a calibration sensor signal;
• and
• calibrating the primary sensor signal based on the calibration sensor signal and the defined spatial relation between the primary conductor and the calibration conductor using a calibration circuit.

A computer readable non-transitory digital storage medium having stored thereon a computer program having a program code for performing, when running on a computer, a method for sensing a current flowing in a primary conductor of a substrate, the method comprising:

• providing a calibration current for a calibration conductor of the substrate using a circuit, wherein the calibration conductor and the primary conductor are arranged in a defined spatial relation to each other on the substrate, and wherein the primary conductor and the calibration conductor are electrically isolated from each other;
• sensing a magnetic field of the primary current flowing in the primary conductor using a sensing circuit to provide a primary sensor signal, and sensing a magnetic field of the calibration current flowing through the calibration conductor using the sensing circuit or another sensing circuit to provide a calibration sensor signal;
• and
• calibrating the primary sensor signal based on the calibration sensor signal and the defined spatial relation between the primary conductor and the calibration conductor using a calibration circuit.