Material dispensing method and apparatus with stall detect

摘要

An apparatus for dispensing material from a container having a dispensing element includes a motor for repeatedly actuating the dispensing element to facilitate dispensing of the material from the container and a controller for activating the motor at predetermined time intervals. The apparatus includes a stall detection circuit coupled to the motor and to the controller to detect a stall condition of the motor, the stall detection circuit configured to issue a stall detection signal when the stall condition is detected. The controller deactivates the motor in response to receiving the stall detection signal.