Regulating circuit as for controlling the speed of a motor

Details Regulating circuit as for controlling the speed of a motor Regulating circuit as for controlling the speed of a motor

1991-10-18

1994-03-29

Sikes, William L.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307271, 307246, 328141, 331 17, 369240, 360 7303, H03K 519, H03L 700

Patent

active

052988120

ABSTRACT:
A regulating circuit for controlling the speed of a rotating disc to provide a constant frequency signal from the disc includes a signal pickup device which moves radially along the disc and provides a velocity signal the frequency of which changes by a factor .DELTA.f as the position of the pickup device on the disc changes. A processor receives the velocity signal and produces a control signal in accordance with the factor .DELTA.f. A change-over switch provides a fine range voltage and a coarse range voltage which are used to control the speed of the disc in a fine range mode and a coarse range mode, respectively.

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Arter et al., "Motor Control Circuit", IBM Technical Bulletin vol. 13, No. 3, pp. 689-690, Aug. 1970.
Penner, "Digital television tuner uses MOS LSI and nonvolatile memory," Electronics, vol. 49, No. 7, pp. 86-90, Apr. 1, 1976.

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