Abstract: The disc coreless permanent magnet synchronous motor is able to deliver strong overload ability, zero cogging torque, the sinusoidal distribution of flux density, the small armature reaction and the linear parameters etc. But for the coreless structure, the motors tend to have low inductance. As a result, the motor winding current experiences very high ripple current and the large motor torque ripple if driven from conventional drivers with the pulse width modulation（PWM） control based on voltage source inverter（VSI）. To solve this problem, a novel automatic control method based on a current chopper converter has been proposed. The current was regulated by the proposed current control algorithm according to the value of the angle of the rotor angle sensor feedback, and the torque has been controlled. The problem of discontinuous currents caused by the low inductance has been solved by the control strategy proposed in this paper. The operating principle of the system has been analyzed. Simulation and experimental results confirm the validity of the proposed control method.