| 摘要 |
A flat type blushless vibration motor is provided to reduce a disconnection error of an electric wire by increasing a diameter of a field coil. A flat type blushless vibration motor includes switching elements(P1,P2), field coils, and a controller(60). Two switching elements are paired to form one couple. Three couples are parallel-arranged between a DC source and a ground, so that the DC source is switched on and off. A third field coil is series-connected to a second field coil. First ends of first to fourth field coils(C1,C2,C3,C4) are connected to contact points of the switching elements in the couple, respectively. Second electrodes of the field coils are connected in a Y configuration. The controller controls the switching elements, so that currents are simultaneously applied on two lines which are connected to a contact point of the Y configuration.
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