Abstract: An electromechanical actuator includes a first system and a second system. The first system includes a first motor and a first movable element capable of being moved back and forth in an axial direction of a rod. The second system includes a second motor and a second movable element capable of being moved back and forth in the axial direction of the rod. The electromechanical actuator is capable of adjusting a stroke length which is a distance between the first driving section set to or in the proximity of an end portion of the first movable element and the second driving section set to or in the proximity of an end portion of the second movable element. The first movable element and second movable element are configured for back and forth movement in the axial direction of the common rod.

Abstract: To bring an actuator driving motor having a malfunction such as failure to a stop in a shorter time without employing a mechanical braking system. The present invention is an electric actuator driver, including: a power supply; an actuator driving motor (11A, 11B) to be supplied with power from the power supply to drive an actuator (B1); a motor braking circuit (C) to apply a regenerative brake on the actuator driving motor (11A, 11B); a malfunction occurrence determining means (D1) to determine whether there is a malfunction in a necessary component; and a regenerative braking means (D3) to apply the regenerative brake on the actuator driving motor (11A, 11B) by means of the motor braking circuit (C).

Abstract: The present invention aims to respond a transient high instantaneous current that flows during acceleration of an electric actuator as well as to reduce the size and weight. The present invention is an electric actuator driver, including: an electric actuator (10); a motor generator (50) to drive the electric actuator (10); and a motor generator driving means (C8) to rotate the motor generator (50) at a rotation speed with which the motor generator (50) supplies a high instantaneous current that flows during acceleration/deceleration the electric actuator (10).

Abstract: An electromechanical actuator includes a first system and a second system. The first system includes a first motor and a first movable element capable of being moved back and forth in an axial direction of a rod. The second system includes a second motor and a second movable element capable of being moved back and forth in the axial direction of the rod. The electromechanical actuator is capable of adjusting a stroke length which is a distance between the first driving section set to or in the proximity of an end portion of the first movable element and the second driving section set to or in the proximity of an end portion of the second movable element. The first movable element and second movable element are configured for back and forth movement in the axial direction of the common rod.

Abstract: There is provided a magnet type brushless generator capable of particularly controlling an output voltage to be uniform even in a driving operation at a variable rpm from a low-speed rotation to a high-speed rotation. The magnet type brushless generator includes a stator 20 having a plurality of stator magnetic poles around which winding wires for generating a rotation magnetic field are wound; a rotor 30 having a first field magnet 32 and a second field magnet 34 disposed coaxially with the first field magnet 32 in an opposed manner so as to be rotatable relative to the first field magnet; and a planetary gear mechanism 40 configured to control a relative rotation position of the first field magnet 32 and the second field magnet 34.