Boots – shoes – and leggings
Patent
1990-09-17
1993-02-02
Smith, Jerry
Boots, shoes, and leggings
364153, 364155, G05B 1142
Patent
active
051842920
ABSTRACT:
Method and apparatus for closed-loop control of a variable in which an analog manipulated signal is produced for discrete time intervals in response to an error signal. The effect of the manipulated signal is confined to a predetermined manipulating range. The response to the error signal is distributed among a plurality of subsequent discrete time intervals when it tends to exceed the manipulating range of the control, so that the entire rate action becomes effective. The control according to the invention allows to deal with delays up to the third order with high accuracy and extraordinary speed. Special correcting means allow to apply this type of control also to line-commutated converters and choppers.
REFERENCES:
patent: 4250543 (1981-02-01), Smith et al.
patent: 4872104 (1989-10-01), Holsinger
IEEE Pub. No. 81CH1715-2 NPS, "Plasma Control Techniques of the ASDEX-Feeck System" by F. Schneider, Oct. 26-29, 1981.
Siemens Zeitschrift 51 (1977) Heft 5, pp. 394-398; Von Siegfried Meyer, et al.: Adaptiver Abtast-Regler fur das Langs-, Setten- und Schnittregister Von Tiefdruck-Rotations- Maschinen.
Regelungstechnische Praxis 25, Jahrgang 1983 Heft 10, pp. 423-426, W. Eckelman, et al.: Vergleich Von Regelalgorithmen In Automatisierungssystemen.
German Technical Magazine "Regelungstechnik und Proze-Datenverarbeitung" No. 4, (1971), pp. 155 to 162 (von D. Schroder).
Publication CERN-ISR-OP/74-9 "Stepping Motor Driver with Interpolated Steps" By F. W. Schneider, Geneva, Feb. 1974.
Gordon Paul
Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.
Smith Jerry
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