Title:
電子安定器
Document Type and Number:
Japanese Patent JP4031429
Kind Code:
B2
Abstract:
An electronic ballast for driving a gas discharge lamp includes a rectifier, a valley-fill circuit, an inverter having first and second series-connected controllably conductive device having complementary duty cycles, a control circuit for controlling the controllably conductive device, and an independent cat ear power supply to provide power to the ballast control circuits. The result is a ballast having substantially improved THD, and current crest factor. In a preferred embodiment, the valley-fill circuit includes an energy storage device that stores energy in response to a controllably conductive device. In an especially preferred embodiment, the controllably conductive device of the valley-fill circuit is also one of the controllably conductive devices of the inverter.
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Inventors:
Robert Sea Newman Jr.
Stuart Dejonji
Mark tie pail
Dominique Tarabagrini
Joel Spira
Stuart Dejonji
Mark tie pail
Dominique Tarabagrini
Joel Spira
Application Number:
JP2003508110A
Publication Date:
January 09, 2008
Filing Date:
June 24, 2002
Export Citation:
Assignee:
LUTRONELECTRONICS COMPANY INCORPORATED
International Classes:
H05B41/282; H02M7/12; H05B41/28
Domestic Patent References:
| JP9154285A | ||||
| JP6006979A | ||||
| JP2000270555A | ||||
| JP10164853A |
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
Shinya Mitsuhiro
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
Shinya Mitsuhiro