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Patent Searching and Data


Title:
ILLUMINATING LIGHT COMMUNICATION DEVICE AND COMMUNICATION MODULE
Document Type and Number:
WIPO Patent Application WO/2019/039289
Kind Code:
A1
Abstract:
An illuminating light communication device is provided with: a limiting circuit (73) which is connected in series with a load circuit (53) emitting illuminating light and an on-off switch (SW), and which limits an electric current flowing therethrough so as not to exceed a first set value corresponding to a first reference value; a voltage source (64) which applies a direct-current voltage to a series circuit consisting of the load circuit (53), the on-off switch (SW), and the limiting circuit (73); a constant voltage feedback circuit (67a) which supplies the voltage source (64) with a feedback signal for making a voltage applied to the limiting circuit (73) constant; a first smoothing capacitor (65) connected in parallel with the series circuit consisting of the load circuit (53), the on-off switch (SW), and the limiting circuit (73); and a second smoothing capacitor (165) connected in parallel with a series circuit consisting of the load circuit (53) and the on-off switch (SW).

Inventors:
GOTO HIROMICHI
NISHINO HIROYUKI
ITOH KAZUO
KIDO SHOJIRO
TAKEDA TERUHITO
Application Number:
PCT/JP2018/029763
Publication Date:
February 28, 2019
Filing Date:
August 08, 2018
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H04B10/116; F21V23/00; H04B10/564; H05B37/02
Foreign References:
JP2017139211A2017-08-10
JP2017135567A2017-08-03
Attorney, Agent or Firm:
NII, Hiromori et al. (JP)
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