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Stepper motor control

Stepper motor control
The control is a compact design for driving bipolar stepper motors. Driver stages IC2 and IC3 are modern types from ST Microelectronics. Because of the combination of CMOS logic with D-MOS power transistors, these devices need few external components. Also, compared with the previous generation of bipolar devices such as the L298, the D-MOS transistors drop lower voltages so that the internal dissipation is smaller.
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