Electrical transformer with reduced core noise

Details Electrical transformer with reduced core noise Electrical transformer with reduced core noise

1995-07-31

1998-03-03

Nguyen, Matthew V.

Inductor devices

With vibration control

336 92, H01F 2700

Patent

active

057240175

ABSTRACT:
An electrical transformer includes a housing, a transformer core and winding subassembly located within the housing, and an active mount subassembly having an active mount and a controller. The active mount has a first end attached to the housing and a second end attached to the transformer core and winding subassembly. The controller has an output port connected to the active mount. The active mount cancels out (or reduces) noise-causing vibrations which come from the transformer core and winding subassembly during transformer operation.

REFERENCES:
patent: 3629757 (1971-12-01), Katayama
patent: 4318068 (1982-03-01), Hori
patent: 4371858 (1983-02-01), Kanoi et al.
patent: 4390858 (1983-06-01), Schulzer
"Active Noise Control Systems", by R.R. Leitch and M.O. Tokhi, IEEE Proceedings, vol. 134, Pt. A, No. 6, Jun. 1987, pp. 525, 528, and 545.

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