| 摘要 |
PURPOSE: A multistage motor is provided to be used in various industrial fields by easily increasing or decreasing rotation power. CONSTITUTION: A main driving unit(20) rotates a shaft by receiving rotary power from a magnetic part. The magnetic part includes a rotor with a magnet. A plurality of sub driving units(30a,30b,30c) include planet gear assemblies. A control unit applies a current to the magnetic part by calculating output values of the main driving unit and the sub driving unit. |
