Abstract: A voice coil actuator assembly includes a housing assembly, a magnet assembly, a bobbin, and a plurality of coils. The magnet assembly is disposed within, and is movable relative to, the housing assembly and includes a plurality of permanent magnets. The bobbin is fixedly mounted within the housing assembly and surrounds the magnet assembly. The bobbin includes a plurality of winding cavities. Each winding cavity is at least partially coated with a dielectric coating material and has a bottom surface and two side walls. The coils are electrically connected in series. Each coil is wound on the bobbin and is disposed, one each, within a different one of the winding cavities. Each coil comprises magnet wire coated with the dielectric coating material. When the coils are electrically energized, a linear force is generated that causes relative motion between the magnet assembly and the housing assembly.

Abstract: A lightweight gear includes a hub, and a tooth ring defining a plurality of gear teeth. The tooth ring includes an inner core composed of a polymer-based material that is coupled to the lattice structure. The lightweight gear includes a lattice structure interconnecting the hub and the tooth ring. The lattice structure has a density that varies radially based on an operating condition of the lightweight gear and the lattice structure is composed of a metal or a metal alloy.

Abstract: A lightweight gear includes a hub, and a tooth ring defining a plurality of gear teeth. The tooth ring includes an inner core composed of a polymer-based material that is coupled to the lattice structure. The lightweight gear includes a lattice structure interconnecting the hub and the tooth ring. The lattice structure has a density that varies radially based on an operating condition of the lightweight gear and the lattice structure is composed of a metal or a metal alloy.

Abstract: A hybrid spherical motor includes a first gear box, a second gear box, a yoke arm, a brushless direct current (BLDC) motor, a spherical stator, and a spherical armature. The split armature, in response to the spherical stator being energized, rotates about a first rotational axis, thereby causing the first gear box input connection and the second gear box input connection to rotate about the first rotational axis, and the yoke arm rotates about the first rotational axis in response to the first gear box input connection and the second gear box input connection being rotated about the first rotational axis, whereby the BLDC motor rotates about the first rotational axis.

Abstract: A gimbal assembly is provided that allows for more than a single rotation about a rotational axis in both a first rotational direction and a second rotational direction.

Abstract: A multi degree-of-freedom electromagnetic machine includes an outer case, an inner case, a stator, stator windings, a voice coil winding, a tilt magnet, a rotor, and rotor magnets. The inner case is disposed within an inner cavity of the outer case and is mounted to rotate relative to the outer case about one or more rotational axes. The stator is fixedly mounted within the inner case, and the stator windings are wound thereon. The voice coil winding is fixedly coupled to either the inner surface of the outer case or the outer surface of the inner case. The tilt magnet is fixedly coupled to either the outer surface of the inner case or the inner surface of the outer case. The rotor is rotationally mounted within the inner case and is operable to rotate, relative to the stator, about a rotational axis.

Abstract: A hybrid spherical motor includes a first gear box, a second gear box, a yoke arm, a brushless direct current (BLDC) motor, a spherical stator, and a spherical armature. The split armature, in response to the spherical stator being energized, rotates about a first rotational axis, thereby causing the first gear box input connection and the second gear box input connection to rotate about the first rotational axis, and the yoke arm rotates about the first rotational axis in response to the first gear box input connection and the second gear box input connection being rotated about the first rotational axis, whereby the BLDC motor rotates about the first rotational axis.

Abstract: A gimbal assembly is provided that allows for more than a single rotation about a rotational axis in both a first rotational direction and a second rotational direction.

Abstract: A multi degree-of-freedom electromagnetic machine includes an outer case, an inner case, a stator, stator windings, a voice coil winding, a tilt magnet, a rotor, and rotor magnets. The inner case is disposed within an inner cavity of the outer case and is mounted to rotate relative to the outer case about one or more rotational axes. The stator is fixedly mounted within the inner case, and the stator windings are wound thereon. The voice coil winding is fixedly coupled to either the inner surface of the outer case or the outer surface of the inner case. The tilt magnet is fixedly coupled to either the outer surface of the inner case or the inner surface of the outer case. The rotor is rotationally mounted within the inner case and is operable to rotate, relative to the stator, about a rotational axis.