Square wave drive system

Details Square wave drive system Square wave drive system

2008-01-22

2008-01-22

Owens, Douglas W. (Department: 2821)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Periodic switch in the primary circuit of the supply...

C315S291000, C315S307000, C315SDIG002

Reexamination Certificate

active

11240115

ABSTRACT:
A power conversion circuit improves lamp operating life and lamp efficiency by driving a fluorescent lamp with a square wave signal. The square wave signal is an alternating current signal with relatively fast transition times. The square wave signal advantageously reduces lamp current crest factor for more efficient operation of the fluorescent lamp.

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