Abstract: A beverage maker has pulse-width modulation (PWM) signals and preset flow velocity values stored therein and supplies a liquid through a flow velocity control method, which includes setting a target flow velocity value; setting one of the preset flow velocity values matching the target flow velocity value as a matched flow velocity value and setting one of the PWM signals corresponding to the matched flow velocity value as an executing PWM signal; supplying the liquid according to the executing PWM signal and sensing an actual liquid flow velocity; performing an algorithm on the executing PWM signal and a sensed liquid temperature and dispensing time to generate an adjusted PWM signal when a difference exists between the actual and the target flow velocity value; and finally, changing the liquid flow velocity according to the adjusted PWM signal, so that the beverage maker supplies the liquid at the target flow velocity stably.

Abstract: A beverage maker has pulse-width modulation (PWM) signals and preset flow velocity values stored therein and supplies a liquid through a flow velocity control method, which includes setting a target flow velocity value; setting one of the preset flow velocity values matching the target flow velocity value as a matched flow velocity value and setting one of the PWM signals corresponding to the matched flow velocity value as an executing PWM signal; supplying the liquid according to the executing PWM signal and sensing an actual liquid flow velocity; performing an algorithm on the executing PWM signal and a sensed liquid temperature and dispensing time to generate an adjusted PWM signal when a difference exists between the actual and the target flow velocity value; and finally, changing the liquid flow velocity according to the adjusted PWM signal, so that the beverage maker supplies the liquid at the target flow velocity stably.