Precision tool control system for a workpiece positioning appara

Details Precision tool control system for a workpiece positioning appara Precision tool control system for a workpiece positioning appara

1996-09-19

1998-04-14

Martin, David S.

Electricity: motive power systems

Positional servo systems

Adaptive or optimizing systems including 'bang-bang' servos

318601, 318632, G05B 1300

Patent

active

057396540

ABSTRACT:
A servo controlled tool and stage positioning system. A circuit in the tool positioning servo control circuit removes unwanted glitches. Glitches are generated by servo control DACs when the servo is at rest. The circuit selectively blocks these glitches from being passed to the tool positioning circuit only when the stage is at rest.

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J. M. Fournier, et al., Special Brief Papers, "A 130-MHz 8-b CMOS Video DAC for HDTV Applications" IEEE Jrl. of Solid-State Circuits, v. 26, No. 7, pp. 1073-1077, Jul. 1991.

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