Control apparatus for intermittently driving actuator, powder fe

Details Control apparatus for intermittently driving actuator, powder fe Control apparatus for intermittently driving actuator, powder fe

1997-09-18

1999-06-29

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310317, 310325, 318116, H01L 4108

Patent

active

059172665

ABSTRACT:
Disclosed is the powder feeder in which the sampling timing G, H, . . . is set during the inactive period T.sub.i in synchronism with the cycle of the duty ratio clock when the output voltage V.sub.CELL is fed back to the microcomputer 13, thereby the feedback signal (the output voltage V.sub.CELL) on which noise is not superposed can be sampled and the feed amount of the powder P can be controlled with high accuracy.

REFERENCES:
patent: 4952834 (1990-08-01), Okada
patent: 4973876 (1990-11-01), Roberts
patent: 5173630 (1992-12-01), Tanaka
patent: 5198732 (1993-03-01), Morimoto
patent: 5710491 (1998-01-01), Takagi et al.
patent: 5767609 (1998-06-01), Suganuma

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