Method of stopping a stepping motor

Details Method of stopping a stepping motor Method of stopping a stepping motor

1982-07-19

1984-09-04

Truhe, J. V.

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

318696, H02K 2904

Patent

active

044699956

ABSTRACT:
A method of stopping a feedback-controlled stepping motor having a stator and a rotor wherein the drive of the stator field is leading the rotor by more than one step and the rotor is rotating with an angular velocity within a first range of values is performed by decreasing the drive lead of the stator field from its slewing value to another value whereby the angular velocity of the rotor decreases below the first range and sensing for the decrease of the angular velocity of the rotor to within a second range of values so that when the angular velocity of the rotor is within the second range of values the rotation of the stator field is stopped to brake the rotor.

REFERENCES:
patent: 3628119 (1971-12-01), Abraham et al.
patent: 3636429 (1972-01-01), Jakubowski et al.
patent: 3863118 (1975-01-01), Lander et al.
patent: 4320330 (1982-03-01), Bahr et al.
D. W. Kennedy, "Digital Methods Fixes Phase Lag or Lead" Control Engineering, Aug. 1967, p. 72.

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