Brushless motor having phase advance

摘要: A Brushless motor with phase advance has a rotor having magnetic poll teeth, stator plural coils and facing the across gap, bearing for rotatably supporting rotor. position sensor is mounted on detects variations in of converts said into an electrical signal which issues as polyphase positional approximate sine-wave shape. velocity detecting device signal. Electronic switching apparatus receives step instruction from outside selects corresponding to Phase circuitry advances by using sum selected amount.