Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1982-11-01
1985-12-10
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307263, 328 60, 377 2, 377 45, 377110, H03K 302
Patent
active
045582319
ABSTRACT:
A variable rate, bi-directional slew control employing a dual-concentric potentiometer having a first shaft attached to a first spring for urging it to remain in an extreme clockwise position and a second shaft urged by a second spring to remain in an extreme counterclockwise position wherein an extension of a sleeve provides the means for manual manipulation of the first shaft in a counterclockwise direction and the second shaft in a clockwise direction. A first tap associated with the first shaft is electrically connected to a first off-zero detector which is itself connected to a pulse generator which is in turn connected to an up input of an up/down counter. A second tap associated with the second shaft is electrically connected to a second off-zero detector which is connected with a second pulse generator which is in turn connected to a down input of the up/down counter.
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Linear Integrated Circuits Data Book, Motorola, Inc., 1973, pp. 8-294-8-300.
Gresham Lowell W.
Hudspeth D. R.
Miller Stanley D.
Motorola Inc.
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