Electric lamp and discharge devices: systems – Pulsating or a.c. supply – Transformer in the supply circuit
Reexamination Certificate
2011-07-26
2011-07-26
Le, Don P (Department: 2819)
Electric lamp and discharge devices: systems
Pulsating or a.c. supply
Transformer in the supply circuit
C315S291000
Reexamination Certificate
active
07986104
ABSTRACT:
A discharge lamp lighting apparatus includes a first inverter, a second inverter to output a voltage whose phase is opposite to that of a voltage provided by the first inverter, a discharge lamp connected between a first output terminal of the first inverter and a first output terminal of the second inverter, a first current detection circuit arranged between a second output terminal of the first inverter and a common potential and having a first current detection element and a second current detection element that are connected in series, a second current detection circuit arranged between a second output terminal of the second inverter and the common potential and having a third current detection element and a fourth current detection element that are connected in series, and a protection circuit to detect a current abnormality according to a composite signal of outputs of the second and fourth current detection elements and stop the operation of the first and second inverters.
REFERENCES:
patent: 7397198 (2008-07-01), Oyama
patent: 2005/0017647 (2005-01-01), Huang
patent: 2005/0253536 (2005-11-01), Oyama
patent: 2006/0043909 (2006-03-01), Hwang et al.
patent: 2009/0267536 (2009-10-01), Wang et al.
patent: 2009/0322245 (2009-12-01), Horikawa
patent: 2004 228476 (2004-08-01), None
patent: 2005 251580 (2005-09-01), None
patent: 2005 353572 (2005-12-01), None
patent: 2006 66361 (2006-03-01), None
Le Don P
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Sanken Electric Co. Ltd.
LandOfFree
Discharge lamp lighting apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Discharge lamp lighting apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discharge lamp lighting apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2721465