Stepper motor controller

Details Stepper motor controller Stepper motor controller

1998-12-10

2000-05-09

Ro, Bentsu

Electricity: motive power systems

Open-loop stepping motor control systems

H02P 800

Patent

active

060608579

ABSTRACT:
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.

REFERENCES:
patent: 4091316 (1978-05-01), Friedman
patent: 4446411 (1984-05-01), Song
patent: 4574228 (1986-03-01), Blue et al.
patent: 4647829 (1987-03-01), Giguere et al.
patent: 4740737 (1988-04-01), Schiavon
patent: 4906910 (1990-03-01), Tanuma et al.
patent: 5485070 (1996-01-01), Tominaga

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