Abstract:Aiming at the quick response and smooth operation of the pan body, blade and dumping action of the drum type cooking machine, a multi-motor cooperative controller with STM32F767IGT6 as the main controller is designed. The controller adopts 74HC244 isolation circuit and dual-BTN7960-chip motor drive circuit to realize motor control, incremental encoder and photocoupler speed measurement circuit to achieve speed feedback, and PID algorithm to achieve speed setting. The experiments show that the multi motor cooperative controller can realize the fast response of the motor. The motors stabilize to the preset speed in 0.04~0.06 s. The pan body, blade, and dumping control motors can achieve synchronous and independent working modes, and the interaction is neglectable. This controller can meet the action needs of the cooking machine.