Title:
DISCHARGE LAMP OPERATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2005/099317
Kind Code:
A1
Abstract:
A discharge lamp operating device comprises a DC power supply (101) for supplying power to an HID lamp (111), a transformer (105) for transmitting the voltage of the DC power supply (101) to the HID lamp (111), a switch (102) connected between the DC power supply (101) and the primary winding of the transformer (105), switches (103, 104) connected to the primary side of the transformer (105), an inductor (106) connected in series to the secondary winding of the transformer (105), a series resonance circuit connected to the secondary side of the transformer (105) and including an inductor (108) and a capacitor (110), and a parallel resonance circuit connected to the secondary side of the transformer (105) and including an inductor (107) and a capacitor (109). A current is supplied constantly to the transformer (105) while throwing power intermittently from the DC power supply (101) to the transformer (105) through switching operation of the switches (102, 103, 104).
Inventors:
HASE YUJI (JP)
IWATA AKIHIKO (JP)
HARADA SHIGEKI (JP)
IZUMI KIKUO (JP)
OHSAWA TAKASHI (JP)
IWATA AKIHIKO (JP)
HARADA SHIGEKI (JP)
IZUMI KIKUO (JP)
OHSAWA TAKASHI (JP)
Application Number:
PCT/JP2005/006782
Publication Date:
October 20, 2005
Filing Date:
April 06, 2005
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
HASE YUJI (JP)
IWATA AKIHIKO (JP)
HARADA SHIGEKI (JP)
IZUMI KIKUO (JP)
OHSAWA TAKASHI (JP)
HASE YUJI (JP)
IWATA AKIHIKO (JP)
HARADA SHIGEKI (JP)
IZUMI KIKUO (JP)
OHSAWA TAKASHI (JP)
International Classes:
H05B41/02; H05B41/18; H05B41/282; H05B41/288; H05B41/24; (IPC1-7): H05B41/18; H05B41/02; H05B41/24; H05B41/282
Foreign References:
| JPS63245263A | 1988-10-12 | |||
| JPH08335497A | 1996-12-17 |
Attorney, Agent or Firm:
Tazawa, Hiroaki (7-1 Kasumigaseki 3-chom, Chiyoda-ku Tokyo 13, JP)
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