| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor control device improved in operation performance. <P>SOLUTION: The motor control device comprises: a DC/AC conversion means that converts a DC voltage to an AC voltage by a switching element on the basis of a PWM signal, and feeds the AC voltage to a three-phase brushless DC motor; an induction voltage detection means that detects an induction voltage of the brushless DC motor; a magnetic pole position detection means that detects the magnetic position of the brushless DC motor from the induction voltage; a voltage control means that outputs a voltage waveform outputted from the magnetic pole position detection means on the basis of the magnetic pole position; a PWM control means that converts the voltage waveform to the PWM signal; a regeneration voltage detection means that detects a regeneration voltage included in the induction voltage; and a regeneration time-out detection means that stops a regeneration detection operation in the case that a time when the regeneration detection operation of the regeneration voltage detection means is decided on the basis of a prescribed physical quantity has elapsed. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
