| 摘要 |
A controller 20 for a stepper motor 10 comprises a plurality of outputs 26 for supplying drive signals to coils 16 of the stepper motor 10, pulse generating means for supplying full step signals each comprising a succession of digital pulses to each of the outputs 26, pulse width modulation means for supplying a pulse width modulated signal comprising a succession of width modulated digital pulses and mixing means 24 for mixing the full step signals and the pulse width modulated signal to produce digital stepper motor drive signals.
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