| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a compressor system capable of absorbing torque ripples, regardless of the load state. <P>SOLUTION: A control circuit 11 operates, based on a rotation command and rotational angle information θ, outputs a PWM signal S to an inverter 12. The inverter 12 applies a rectangular-wave voltage to a motor 13, based on the PWM signal S and flows an interrupted drive current I. The motor 13 produces an induced voltage E. An induced voltage detection circuit 15 detects the induced voltage E and the rotational angle information θ to the control circuit 11. The compressor system 100 performs torque control of a compressor 1, based on the preset torque control pattern. <P>COPYRIGHT: (C)2009,JPO&INPIT |
