| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rotary electric machine controller in which radio noise generated when driving of the rotary electric machine is stopped can be reduced by a simple configuration. <P>SOLUTION: A microcomputer 41 calculates a target current value being fed to the windings 11, 12, 13 of respective phases. The microcomputer 41 generates pulse-like PWM signals for the winding of respective phases on the basis of the target current value thus calculated. A predriver 42 and an inverter 30 apply voltages to the windings 11, 12, 13 of respective phases on the basis of the PWM signals generated by the microcomputer 41. When performing control for stopping the driving of a motor 10, the microcomputer 41 generates a PWM signal so that the pulse change timing of all PWM signals of respective phases is different from that of other PWM signals of respective phases. <P>COPYRIGHT: (C)2013,JPO&INPIT |
