Available for incorporation into PCB-level designs for medical equipment, an integrated circuit (IC) is designed to eliminate the unintentional stalling or loss of synchronization in stepper motors by providing closed-loop motor control. The chip applies variable-current control to minimize motor heating and energy costs. Because it optimizes the torque of the motor, it may allow the engineer to reduce motor frame size. Also, with machine platforms shipped to a global market, the IC can be used as a proxy to monitor machine wear and thus supply early indication of the need for field maintenance. The IC works through hardware, not proportional, integral, derivative software, which optimizes response time and removes the need for a high-resolution encoder. A test module is available for simulating chip performance.
 

Koco Motion US LLC
San Jose
www.kocomotionus.com