Dual voltage ballast

Details Dual voltage ballast Dual voltage ballast

1989-04-10

1991-03-19

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Transformer in the supply circuit

315276, 336170, 336 90, H05B 4116

Patent

active

050014013

ABSTRACT:
In one form of the multiple voltage ballast system described herein, each of the primary coils has different wire sizes with the largest diameter wire being utilized in the 120 V primary coil. In another form of the invention, a pair of 120 V primary coils are connected in series with a 37 V primary coil so that the ballast may function as a 277 V ballast. The primary coils are also electrically connected so that the ballast may be used as a 120 V ballast.

REFERENCES:
patent: 4916363 (1990-04-01), Burton et al.

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