Title:
CONTROL CIRCUIT, LUMINAIRE, LIGHTING APPARATUS, AND SIGNBOARD
Document Type and Number:
Japanese Patent JP2018206485
Kind Code:
A
Abstract:
To provide a control circuit, and the like, which receives an output current determined on the basis of a lighting control signal, and supplies a control current to a light-emitting device, in which a lighting control curve can be brought close to a desired lighting control curve.SOLUTION: A control circuit (modulation circuit 20) receiving an output current Ifrom a lighting device 10 which outputs the output current Idetermined on the basis of a lighting control signal, consuming a part of the output current Ias current consumption I, and supplying a control current ito a light-emitting device 30 includes an adjustment circuit 90 for adjusting current consumption I. The adjustment circuit 90 increases the magnitude of current consumption Imonotonously for the magnitude of output current I.SELECTED DRAWING: Figure 3
Inventors:
SEKI KEISUKE
IDO SHIGERU
HAYASHI KAZUHIKO
IDO SHIGERU
HAYASHI KAZUHIKO
Application Number:
JP2017106845A
Publication Date:
December 27, 2018
Filing Date:
May 30, 2017
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
F21S2/00; H05B37/02; F21S6/00; H05B44/00; F21S8/02; F21S8/04; F21S41/00; F21S43/00; F21S45/00; G09F13/04; H04B10/116
Attorney, Agent or Firm:
Hiromori Arai
Eisaku Teratani
Shinichi Michisaka
Eisaku Teratani
Shinichi Michisaka