| 摘要 |
<p>A motor driving device creates, on the basis of a current command signal indicating the magnitude of a current to be fed to a motor (1) and a phase current signal indicating the magnitude of a current actually fed to the motor (1), a first PWM control signal for PWM-driving the individual phases (1u, 1v, 1w) of the stator windings of the motor (1) and a second PWM control signal for rectifying the individual phases (1u, 1v, 1w) synchronously, and drives the motor (1) in accordance with the first and second PWM control signals. The motor driving device is provided with a synchronous rectification control switching unit (21) for controlling the presence/absence of a mask for the second PWM signal in accordance with a control switching signal applied thereto.</p> |
