Electric lamp and discharge devices: systems – Pulsating or a.c. supply – With power factor control device
Reexamination Certificate
2011-04-26
2011-04-26
Vo, Tuyet Thi (Department: 2821)
Electric lamp and discharge devices: systems
Pulsating or a.c. supply
With power factor control device
C315S274000, C315S158000, C315S291000, C315S312000
Reexamination Certificate
active
07932679
ABSTRACT:
In one embodiment, an LED system is controlled to have a substantially unity power factor.
REFERENCES:
patent: 2007/0267984 (2007-11-01), Peng
Hightower Robert P.
Semiconductor Components Industries LLC
Vo Tuyet Thi
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