Circuit board for brush-less DC motors

摘要

The board (1) has hall sensors (4) for detection of a position of a rotor of a brushless direct current motor, where the rotor is guided in an opening (10) of the board. The sensors are arranged in circumferential area of the opening. A power supply line is provided for supplying power to the sensors and the motor. The sensors are attached to an airfoil (3) that is bent from interior of the opening in a position perpendicular to the board by solderable contact surfaces.