MinebeaMitsumi introduces the cX-stepper S series, a high-performance standalone driver engineered to bring closed-loop, servo-like performance to stepper motor applications. When paired with our absolute encoder-equipped stepper motors, the S series utilizes dynamic vector control to supply optimal current based on real-time load demand—reducing drive current by up to 83% (approx. 1/6th) compared to conventional open-loop systems. This massive efficiency gain drastically suppresses motor heat generation, prevents thermal-induced shutdowns, and maintains stable, high-torque performance across demanding duty cycles.