| 摘要 |
<P>PROBLEM TO BE SOLVED: To readily realize regulation of a current ratio of two phase winding currents Im, Ia, while retaining a phase difference of 90°, as it is, by regulating the phase of a voltage waveform Vc applied to the common terminal of two-phase windings, to realize generating of an optimum rotary magnetic field, in response to the specification state of the motor, and to provide high efficiency and low noise. <P>SOLUTION: The drive controller of the motor 4, having the two-phase stator windings (a main winding 4a and an auxiliary winding 4b) freely regulates the voltage phase of the voltage waveform Va of the auxiliary winding 4b, the voltage phase, the voltage wave high value of the voltage waveform Vc of a common terminal 5c of the two-phase windings, and the voltage phase high value with the voltage waveform Vm of the main winding 4a as a reference, by an inverter circuit 3 having six elements. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
