Control circuit for vibratory devices

Details Control circuit for vibratory devices Control circuit for vibratory devices

1983-06-10

1984-12-25

Witkowski, Stanley J.

Electricity: motive power systems

Reciprocating or oscillating motor

Energizing winding circuit control

318132, H02K 3302

Patent

active

044906544

ABSTRACT:
A vibratory amplitude controller for vibratory mechanisms such as a vibratory feeder having in addition to a parts container, an electromagnetic drive unit operated from an A.C. current source for imparting oscillatory motion to the parts container. The controller includes a sensing means for sampling the electromagnetic drive unit current during a specific predetermined interval each A.C. current cycle to produce a vibratory amplitude representing signal. Means responsive to the vibratory amplitude representing signal controls the amount of power delivered from the A.C. current source to the electromagnetic dive unit to maintain a desired vibratory amplitude under varying load and A.C. line voltage conditions.

REFERENCES:
patent: 2297084 (1942-09-01), Swallow
patent: 3122690 (1964-02-01), Dion et al.
patent: 3826993 (1974-07-01), White
patent: 3840789 (1974-10-01), Dion
patent: 4152758 (1979-05-01), Bailey et al.
patent: 4220900 (1980-09-01), Mintz
patent: 4291258 (1981-09-01), Clark et al.

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