Electric lamp and discharge devices: systems – Pulsating or a.c. supply – With power factor control device
Patent
1996-05-09
1999-07-20
Kinkead, Arnold
Electric lamp and discharge devices: systems
Pulsating or a.c. supply
With power factor control device
315225, 315205, 315209R, 315DIG5, 323207, G05F 170
Patent
active
059259868
ABSTRACT:
An improved ballast circuit for controlling the power delivered to a fluorescent lamp. The present invention uses a complex resonating circuit to dynamically adjust the power being delivered to the load. The present invention also operates in burst mode allowing an increased voltage to be applied across the lamp load without overstressing the circuit. The increased voltage will light both lamps nearing the end-of-life and lamps in cold weather.
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Kinkead Arnold
Pacific Scientific Company
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