A Low-cost And Scalable Stepper Motor Control Circuit
A low-cost and scalable stepper motor control circuit is designed using closed-loop control method based on the TMS570 chip.DRV8845 is used as the power driving unit and INA241A as the feedback detection u-nit to simplify the actual peripheral hardware circuit structure.At the same time,multiple analog switches are used to improve the scalability of the feedback signal to ensure the system reliability while saving layout and wiring re-sources.A brief introduction is given to the design scheme and main related technologies of the entire circuit.After experimental verification,the designed circuit can effectively control the stepper motor.
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