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Title:
POWER SUPPLY DEVICE FOR ILLUMINATION SYSTEM HAVING PLURAL LIGHT EMITTING DIODES, POWER SUPPLY METHOD, AND ILLUMINATION ASSEMBLY WITH ONE SUCH DEVICE
Document Type and Number:
Japanese Patent JP2012129204
Kind Code:
A
Abstract:

To provide a power supply device of an illumination system capable of automatically selecting a power supply parameter, a power supply method, and an illumination assembly.

A power supply device 1 includes selection of a supply voltage or a supply current applied to an illumination system 3 having a plurality of light emitting diodes 16-19. A processing circuit 15 automatically detects a connection direction of the illumination system 3 by emitting at least one polarity test current pulse for detecting a current. Furthermore, the supply voltage and the supply current between the polarity test current pulses are monitored, and a direction of the current or the voltage is reversed for monitoring a current direction, and specifying a direction of the supply voltage or the supply current. Furthermore, the device and the method detect whether the illumination system is an illumination system, to which a stabilized voltage is supplied, or an illumination system, to which a stabilized current is supplied, according to an active resistance of the system.


Inventors:
LOVATO JEAN-LOUIS
DOMINIQUE PERSEGOL
Application Number:
JP2011270855A
Publication Date:
July 05, 2012
Filing Date:
December 12, 2011
Export Citation:
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Assignee:
SCHNEIDER ELECTRIC IND SAS
International Classes:
H05B37/02; H05B44/00
Domestic Patent References:
JP2006147252A2006-06-08
JPS62203474U1987-12-25
JP2010092844A2010-04-22
JP2007042533A2007-02-15
JP2010063340A2010-03-18
Attorney, Agent or Firm:
Hirohito Katsunuma
Yasukazu Sato
Yasushi Kawasaki
Takeshi Sekine
Akaoka Akira
Jie Yamanoi