Title:
DISCHARGE LAMP LIGHTING DEVICE
Document Type and Number:
Japanese Patent JP3800714
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a discharge lamp lighting device which can reduce stresses on the parts of a capacitor and the like in a discharge lamp starting circuit without enlarging the circuit and surely start a discharge lamp.
SOLUTION: This device includes a discharge lamp lighting circuit 22 in which a discharge lamp 2 requiring application of a high-voltage pulse, at least during startup, and the high-voltage side winding N2 of a transformer PT for generating high-voltage pulses exist within a closed circuit, with a capacitor C5 connected in parallel with the low-voltage side winding N1 of the transformer PT. In this case, the discharge lamp lighting circuit 22 has an inductor L2 connected in series with the low-voltage side winding N1 of the transformer PT, and a series circuit of the low-voltage side winding N1 of the transformer and the inductor L2 is connected in parallel with the capacitor C5.
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Inventors:
Hiroshi Noro
Naoki Komatsu
Naoki Komatsu
Application Number:
JP10221497A
Publication Date:
July 26, 2006
Filing Date:
April 18, 1997
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS,LTD.
International Classes:
H05B41/18; H05B41/24; (IPC1-7): H05B41/18; //H05B41/24
Domestic Patent References:
| JP3136938A | ||||
| JP4149901A | ||||
| JP6349586A | ||||
| JP63150891A | ||||
| JP6271195A |
Attorney, Agent or Firm:
Masahiko Kurata