Patent 10908232 was granted and assigned to Allegro Microsystems, Llc on February, 2021 by the United States Patent and Trademark Office.
A magnetic field sensor for sensing external magnetic fields on multiple axes comprises a coil structure and a gain equalization circuit. The coil structure generates reference fields on magnetic field sensing elements in each axis. The gain equalization circuit measures and compares reference fields to generate gain-equalized output signals responsive to the external magnetic fields.