ROTOR POSITION DETERMINATION METHOD INCLUDING STEPS OF APPLYING VOLTAGE TO PHASE WINDING, DETECTING PREDETERMINED CHARACTERISTICS, AND ACQUIRING ROTOR POSITION, FOR ELECTRIC DEVICE, AND RECORDING MEDIUM FOR RECORDING SOFTWARE FOR PERFORMING ROTOR POSITION DETERMINATION METHOD OF ELECTRIC DEVICE

摘要

PURPOSE: A rotor position determination method and a recording medium are provided to determine position of a rotor without using a rotor position converter. CONSTITUTION: A rotor position determination method comprises a step of applying a voltage having a voltage waveform with a cycle independent of an operating cycle of a rotor, to a phase winding, wherein the voltage sets current to the phase winding, and waveform of the current has a cycle same as operation of the rotor; a step of detecting predetermined characteristics in the cycle of the current waveform; and a step of acquiring a rotor position from the detected characteristics.