Four phase stepper motor drive system

A MAX620 connected to form a complete stepper-motor drive. TTL/CMOS signals from the logic network are translated to high-side levels that drive four N-channel power MOSFETs, supplying current to each of four stepper-motor phases. The diodes provide a discharge current path for the stepper-motor windings. MAXIM NEW RELEASES DATA B

OOk, 1992, P. 4-28.

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