Trinamic Servo Controller/Driver Module,
By combining stepper motors and closed-loop control
Eliminating the gearbox and increasing efficiency compared to servo motors


On the 18th, Maxim Integrated Korea launched Trinamic's single-axis servo controller and driver module, 'TMCM-1321', which offers ultra-compact size and lowest power consumption.

The TMCM-1321 servo controller and driver module enables the implementation of two-phase bipolar stepper motors in robotics and automation equipment, optimizing axis speed and synchronization. It features advanced S-shaped ramping as well as linear ramping technology called 'Trinamic SixPoint' to increase processing and effective transmission speeds. Additionally, Trinamic's closed-loop technology utilizes direct feedback to automatically reduce power loss by up to 75%.

The new module simplifies design and reduces stepper motor size through the RS-485 interface and Trinamic's integrated development environment. In addition, to simplify advanced feedback, diagnosis, and servo control, it is equipped with an onboard magnetic encoder and digital input terminals for optical encoding, providing the smallest single-axis servo controller and driver solution of 784 ^mm², which is more than three times smaller than stepper motor solutions in the same class.

“Engineers mostly look for servo drives when selecting energy-efficient drives, but stepper motors have significantly higher torque at low speeds than servo motors of similar size,” said Jonas Proeger, Director of Business Management at Trinamic. “Stepper motors combined with closed-loop control are a suitable option for eliminating low-efficiency gearboxes, allowing you to achieve the efficiency of a servo motor at the cost of a stepper motor.”