Abstract: Various embodiments of the present invention are directed to a powered children's swing. In various embodiments, the swing includes a seat, swing frame, one or more swing arms, a first magnetic component, second magnetic component, swing motion sensor, and swing control circuit. The magnetic components are configured to generate a magnetic force that drives the seat along a swing path. The swing control circuit is configured to control the magnetic components based at least on input from the swing motion sensor and generate control signals causing the seat to swing with substantially constant amplitude as specified by a user.

Abstract: A child motion device includes a frame providing a structural support relative to a reference surface and including an arm pivotably coupled to the structural support for reciprocating movement with a resonant frequency, a child supporting device coupled to the arm and spaced from the reference surface by the frame, and a drive system including a motor configured to drive the arm such that the child supporting device reciprocates along a motion path at a frequency matched to the resonant frequency. The drive system is configured to adjust a duty cycle of the motor to control a speed at which the child support device moves along the motion path.