Device for controlling the drive of a stepping motor, to adjust

Details Device for controlling the drive of a stepping motor, to adjust Device for controlling the drive of a stepping motor, to adjust

1982-03-22

1985-01-08

Rubinson, Gene Z.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, 310 51, H02K 2902

Patent

active

044929099

ABSTRACT:
A device for controlling the drive of a stepping motor to adjust the lateral stitch bight and/or the feed length of a sewing machine comprising apparatus connected to the stepping motor for rendering the stepping frequency of the stepping motor variable as a function of the speed of the sewing machine. The apparatus comprises a microcomputer which is connected to a pulse transmitter for transmitting pulses proportional to the speed of the sewing machine.

REFERENCES:
patent: 3909693 (1975-09-01), Yoshitoke et al.
patent: 4121145 (1978-10-01), Talmadge
patent: 4140956 (1979-02-01), Pritchard
patent: 4201930 (1980-05-01), Inagaki et al.

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