| 摘要 |
According to the present invention, when a control unit (67) of a motor controller (60) controls a first circuit (61), a second circuit (62), and a third circuit (63) to simultaneously rotate a first DC motor (21) and a second DC motor (22), the second circuit (62) is shared. The control unit (67) uses a pulse width modulation system to control switch elements (62a, 62b) of the shared second circuit (62). Therefore, the driving of the first DC motor (21) and the second DC motor (22) can be controlled with high precision by varying the duty ratio of the switch elements (62a, 62b) of the shared second circuit (62). Drive circuitry for driving a plurality of motors can thereby be simplified, and stable operation can be achieved using a pulse width modulation system while reducing the number of times the motors stop. |
