Title:
電源をランプに結合する装置
Document Type and Number:
Japanese Patent JP2011522358
Kind Code:
A
Abstract:
An apparatus coupling a power source to a light emitting diode lamp includes a first part for receiving first voltage and current signals from the power source and a second part for supplying second voltage and current signals to the lamp. The first part includes a detection part for detecting a first amplitude reduction in at least one of the first signals, for example in the first voltage signal, and the second part includes an introduction part for, in response to a detection result, introducing a second amplitude reduction into at least one of the second signals, for example into the second current signal. As a result, the first part detects a first dimming state caused by the power source, and the second part introduces a second dimming state in response to the first part having detected the first dimming state, and the apparatus has self-dimming capabilities, to keep the grid stable.
Inventors:
Went Matias
Application Number:
JP2011508025A
Publication Date:
July 28, 2011
Filing Date:
April 30, 2009
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
H01L51/50; H05B37/02; H05B44/00
Domestic Patent References:
| JP2006244848A | 2006-09-14 | |||
| JP2009542188A | 2009-11-26 | |||
| JP2005529473A | 2005-09-29 | |||
| JPH10284263A | 1998-10-23 | |||
| JP2008041650A | 2008-02-21 | |||
| JP4068657B1 | 2008-03-26 |
Foreign References:
| US5661645A | 1997-08-26 | |||
| US20050030192A1 | 2005-02-10 | |||
| WO2008001246A1 | 2008-01-03 |
Attorney, Agent or Firm:
Susumu Tsugaru
Fueda Shusen
Sakiko Shibata
Fueda Shusen
Sakiko Shibata