Ballasting system for fluorescent lamps having improved energy t

Details Ballasting system for fluorescent lamps having improved energy t Ballasting system for fluorescent lamps having improved energy t

1994-05-13

1996-01-23

Neyzari, Ali

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Transformer in the supply circuit

315255, 315DIG5, H05B 4116

Patent

active

054867398

ABSTRACT:
Ballasting system for fluorescent lamps having improved energy transfer capability and which delivers a sinusoidal current waveform free of high order harmonics and induces a similar waveform into the power distribution system. The system includes a low leakage reactance auto-transformer which is tuned to the line frequency, and a separately-wound heating transformer and means for switching energy from the heating transformer each half cycle.

REFERENCES:
patent: 4185233 (1980-01-01), Riesland et al.
patent: 4399391 (1983-08-01), Hammer et al.

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