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Title:
LED DRIVING CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2019/177167
Kind Code:
A1
Abstract:
Provided is a LED driving circuit capable of shortening, when driving a plurality of LEDs to start lighting, a time during which the LEDs are completely lighted off. The LED driving circuit is a LED driving circuit (7) driving a LED unit (5) with a plurality of LEDs (3), and including a first power supply system (9) for lighting the plurality of LEDs (3) and a second power supply system (11) for lighting some of the plurality of LEDs during a period when all of the plurality of LEDs are lighted off while the plurality of LEDs are being subjected to lighting processing by the first power supply system.

Inventors:
ICHIHASHI Matsuo (Okada Building 5F 7-7-5, Tsukiji, Chuo-k, Tokyo 45, 〒1040045, JP)
FUJIMOTO Takayoshi (Okada Building 5F 7-7-5, Tsukiji, Chuo-k, Tokyo 45, 〒1040045, JP)
KONDO Takeshi (Okada Building 5F 7-7-5, Tsukiji, Chuo-k, Tokyo 45, 〒1040045, JP)
Application Number:
JP2019/011006
Publication Date:
September 19, 2019
Filing Date:
March 15, 2019
Export Citation:
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Assignee:
BRIDGE MARKET INC. (3-8-10, Fukushima Fukushima-ku, Osaka-sh, Osaka 03, 〒5530003, JP)
International Classes:
H05B37/02
Foreign References:
JP2011040701A2011-02-24
JP2012084580A2012-04-26
JP2016510496A2016-04-07
US20160014862A12016-01-14
Attorney, Agent or Firm:
HIROSE Takayuki (The RoyalBuilding 3F 3-8-7, Irifun, Chuo-ku Tokyo 42, 〒1040042, JP)
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