Electroactive waveform control device and related method

Details Electroactive waveform control device and related method Electroactive waveform control device and related method

1998-12-18

2000-03-21

Ro, Bentsu

Electricity: motive power systems

Positional servo systems

With stabilizing features

318623, 318629, G05B 501

Patent

active

060406720

ABSTRACT:
An apparatus and method for reducing vibrational noise generated by the operation of a machine. The machine includes an electric motor that is driven by a drive current generated by a power source. The vibrational noise generated by the operation of the machine induces a waveform in the drive current. An input device monitors the waveform of the drive current and quantifies the induced waveform. A signal processor translates the quantified waveform into a control waveform. A control device adds the control waveform to the drive current, thereby reducing the vibrational noise generated by the machine.

REFERENCES:
patent: 4626754 (1986-12-01), Habermann et al.
patent: 4963804 (1990-10-01), Geiger
patent: 5229556 (1993-07-01), Geddes
patent: 5668744 (1997-09-01), Varadan et al.
patent: 5720066 (1998-02-01), Kim
Phil Davies et al., Designing for a Mixed-Signal Motor-Control System-on-a-Chip, Computer Design, Aug. 1998, p. 79.

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