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 (JP)
FUJIMOTO TAKAYOSHI (JP)
KONDO TAKESHI (JP)
FUJIMOTO TAKAYOSHI (JP)
KONDO TAKESHI (JP)
Application Number:
PCT/JP2019/011006
Publication Date:
September 19, 2019
Filing Date:
March 15, 2019
Export Citation:
Assignee:
BRIDGE MARKET INC (JP)
International Classes:
H05B37/02
Foreign References:
| JP2011040701A | 2011-02-24 | |||
| JP2012084580A | 2012-04-26 | |||
| JP2016510496A | 2016-04-07 | |||
| US20160014862A1 | 2016-01-14 |
Attorney, Agent or Firm:
HIROSE Takayuki (JP)
Download PDF: