Application Notes
UC3717 and L-C Filter Reduce EMI and Chopping Losses in Step Motor
Texas Instruments
Published : 05 Sep 99
Description
The UC3717 stepper motor drive circuit controls and drives the current in one winding of a bipolar stepper motor. A chopper drive that uses the inductance of the motor as the controlling element causes a temperature rise in the motor because of hysteresis and eddy current losses. This application note explains how to solve that problem by placing a properly designed low-pass L-C filter across the
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