Vasile Susana Andreica

US Patent:

59056240, May 18, 1999

Filed:

May 29, 1998

Appl. No.:

9/087131

Inventors:

Marius Andreica - Portland OR
Vasile Andreica - Portland OR

Assignee:

Northwest Magnet, Inc. - Portland OR

International Classification:

H01H47/00

US Classification:

361144

Abstract:

A magnet generator controller has a variable voltage array fabricated as a formation of receptacles mounted on a printed circuit board and interconnected via traces to pairs of taps off a transformer winding, and a plug-in connector that inserts in a selected receptacle to electrically couple one of various pairs of the taps to a field winding output in a mode of operation of the controller. This sets the voltage of the field winding output in the mode. The magnet generator controller also has a function select switch that allows selection of a run function in which the magnet generator controller sequences through plural modes (e. g. , extra lift, lift, and drop modes) with associated field winding output settings in response to an operator control switch and timers. For use during set-up or fine-tuning, the function select switch also allows selection of exclusive mode functions in which the magnet generator controller operates indefinitely in an exclusive one of the modes.