Electricity: motive power systems – Open-loop stepping motor control systems
Patent
1986-12-11
1987-11-10
Shoop, Jr., William M.
Electricity: motive power systems
Open-loop stepping motor control systems
318685, 400902, 400903, H02P 800
Patent
active
047060085
ABSTRACT:
For step motors positioned in response to an external reference location, correction for potential one step misalignment is provided. The method and the apparatus of the invention provide a read/write memory, for storing therein a phase state of the step motor at a particular location, e.g. a home position. The home position may coincide with the external reference location or may be offset therefrom by some predetermined move of the step motor. During cold starts, where memory is not retained, the step motor is moved to its home position and then the phase state of the machine is saved. On subsequent warm starts, after the step motor is moved to the assumed home position, the step motor is controlled to assume the phase state that has been previously stored.
REFERENCES:
patent: 3842331 (1974-10-01), Hendrickson et al.
patent: 3845378 (1974-10-01), Hendrickson et al.
patent: 3944902 (1976-03-01), Lacorre et al.
patent: 3946298 (1976-03-01), van de Loo
patent: 3986094 (1976-10-01), Quioque et al.
patent: 3992614 (1976-11-01), Buss
patent: 4042869 (1977-08-01), Eickelberg et al.
patent: 4066943 (1978-01-01), Roch
patent: 4129813 (1978-12-01), Hunts et al.
patent: 4297626 (1981-10-01), Chiang
patent: 4330739 (1982-05-01), Chiang
patent: 4356439 (1982-10-01), Mott et al.
patent: 4409530 (1983-10-01), Neeper et al.
patent: 4414496 (1983-11-01), Watanabe et al.
patent: 4458185 (1984-07-01), Matty et al.
patent: 4475082 (1984-10-01), Lindig
patent: 4602882 (1986-07-01), Akazawa
patent: 4622505 (1986-11-01), Okabayashi et al.
patent: 4633346 (1986-12-01), Sasaki et al.
Cronch Darell D.
Fisher Richard T.
Graham Patricia A.
Passafiume John E.
Bergmann Saul M.
IBM Corporation
Shoop Jr. William M.
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