Title:
放電灯点灯装置
Document Type and Number:
Japanese Patent JP5188962
Kind Code:
B2
Abstract:
A capacitor 42 (C1) of a first bootstrap circuit 4 for maintaining the ON state of a first switching device 61, one of the two switching devices disposed on a higher potential side of first DC voltage V1, is not only charged with second DC voltage V2, but also supplied with a charging current from third DC voltage V3 on a secondary winding n2 side of a transformer 22, and maintains the ON state of the first switching device 61 for a long time with the charge of both of them. This makes it possible to fix the polarity of the voltage to be applied to the discharge lamp 8 to the single side polarity closer to the DC output operation.
Inventors:
Yasuhiro Kanri
Takashi Osawa
Takashi Osawa
Application Number:
JP2008514403A
Publication Date:
April 24, 2013
Filing Date:
February 09, 2007
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H05B41/24
Domestic Patent References:
| JP2000166258A | 2000-06-16 | |||
| JP2002330064A | 2002-11-15 | |||
| JP2002270388A | 2002-09-20 |
Attorney, Agent or Firm:
Hideaki Tazawa
Hamada Hatsune
Kume Teruyo
Hideo Kawamura
Hamada Hatsune
Kume Teruyo
Hideo Kawamura
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