| 摘要 |
PURPOSE: A control apparatus of a hybrid switched resistance(SR) motor for a motor assisted bicycle is provided to use a current flowing in a winding wire of a motor, thereby accurately detecting the speed of the motor. CONSTITUTION: A motor velocity input part(110) generates a driving current by receiving output voltage on U, V, and W of a winding wire. A control part(120) determines operation of an SR(Switched Resistance) motor by the driving current. An on/off state of a first transistor is determined by receiving the output voltage on the U, V, and W. A light emitting diode has a current flowing by the first transistor. An on/off state of a second transistor is determined by corresponding light emitted from the light emitting diode. |
