| 摘要 |
PROBLEM TO BE SOLVED: To drive a motor in such a manner that an air quantity and a liquid quantity are maintained constant by processing more simplified than the prior arts, regarding a motor device configured to drive the motor so as to maintain the air quantity and a flow rate at fixed values.SOLUTION: A motor device 1 to be used for feeding gas or liquid by driving a fan while using a motor 2 includes: a position and speed acquisition section 13 for acquiring a present rotation angle and a rotation speed ωof the motor 2; a multiplication section 16 for calculating a flow rate fixed target driving current iby multiplying the rotation speed ωthat is acquired by the position and speed acquisition section 13, by a flow rate coefficient K'; and a current control section 25 which sets the flow rate fixed target driving current ito a control target and controls the driving current of the motor 2. Thus, a flow rate of the gas or the liquid is controlled at a fixed value corresponding to the flow rate coefficient K'. |
