Method of controlling a step motor

Details Method of controlling a step motor Method of controlling a step motor

1987-08-19

1989-02-07

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, H02P 800

Patent

active

048034142

ABSTRACT:
A method of controlling a step motor for rotating and halting a rotor of the step motor at a predetermined position by applying a driving voltage or a holding voltage lower than the driving voltage to a plurality of stator coils, in which the holding voltage is applied to the final magnetization phase for a predetermined time period, and thereafter the driving voltage is applied to the final magnetization phase for a predetermined time period, whereby the rotor is halted at the final magnetization phase at a high preciseness.

REFERENCES:
patent: 374959 (1973-07-01), Kobayashi et al.
patent: 4203678 (1980-05-01), Nordstrom
patent: 4264220 (1981-04-01), Okcuoglu
patent: 4353655 (1982-10-01), Watanabe et al.
patent: 4490665 (1984-12-01), Meyer et al.
patent: 4661755 (1987-04-01), Suzuki

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