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Tips: I need to design a controller for a three-phase BLDC motor, how can I correctly identify which phase needs to be energized in a given combination?
The operation of a BLDC motor is based on a simple force interaction between the permanent magnet and the electromagnet. In this case, when coil A is energized, the opposite poles of the rotor and stator are attracted to each other. As a result, the poles of the rotor move towards the vicinity of the energized stator. When the rotor is close to coil A, coil B is energized. When the rotor is close to coil B, coil C is energized.