Oscillating fan control system and control method thereof

Abstract

An oscillating fan control system includes a holder, a stepper motor, a rotating shaft, a shaft encoder, and a controller. The controller is electrically coupled to the stepper motor and the shaft encoder. The shaft encoder can generate a status signal corresponding to a rotation path of the rotating shaft. The controller includes a reversing circuit and a driving circuit. The reversing circuit can generate a reversing signal for the stepper motor in response to the status signal indicating a deviation of the rotating shaft from a midpoint position of the rotation path. The driving circuit can generate pulse signals for the stepper motor according to a subdivision parameter and an oscillation angle. A method for controlling an oscillating fan is also disclosed.

Dependencies are inferred from the claim text.