2018 年 26 巻 2 号 p. 381-386
The development of spherical actuators for robots and electric devices are expected in the manipulation of machines that have multi degrees of freedom. We have developed a 2-degree-of-freedom outer rotor spherical actuator for writs of robots. In this paper, we propose a new control method to reduce the number of current phases and verify the control method through dynamic analysis and measurements on a prototype.