Invention Grant
- Patent Title: Discharge-lamp lighting apparatus
- Patent Title (中): 放电灯照明装置
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Application No.: US11748888Application Date: 2007-05-15
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Publication No.: US07710043B2Publication Date: 2010-05-04
- Inventor: Hiroshi Usui
- Applicant: Hiroshi Usui
- Applicant Address: JP Niiza-shi
- Assignee: Sanken Electric Co., Ltd.
- Current Assignee: Sanken Electric Co., Ltd.
- Current Assignee Address: JP Niiza-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2006-145730 20060525
- Main IPC: H05B37/00
- IPC: H05B37/00

Abstract:
A discharge-lamp lighting apparatus includes first and second cold cathode fluorescent lamps (CCFLs) and first and second transformers. The second transformer has a primary winding connected in parallel to one of primary and secondary windings of the first transformer, a first secondary winding, and a second secondary winding. Each of the first and second secondary windings of the second transformer is connected to the secondary winding of the first transformer with polarities being set so that a voltage of each secondary winding of the second transformer becomes additive to a voltage of the secondary winding of the first transformer. The first CCFL is connected in parallel to a series circuit that includes the secondary winding of the first transformer and the first secondary winding of the second transformer.
Public/Granted literature
- US20070273301A1 DISCHARGE-LAMP LIGHTING APPARATUS Public/Granted day:2007-11-29
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