Title:
LIGHTING CONTROL CIRCUIT, FLOODLIGHT USING LIGHTING CONTROL CIRCUIT, AND LIGHTING DEVICE USING FLOODLIGHT
Document Type and Number:
Japanese Patent JP2016029666
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a lighting control circuit which is suitable for controlling lighting in a state where a floodlight having solid light emitting elements is attached to an existing lighting device for a fluorescent lamp as substitute for the fluorescent lamp.SOLUTION: A lighting control circuit controls lighting of a series light emitting body 10 and includes: a rectification part 12 which is connected with a stabilizer 3, to which commercial AC power E is supplied, and converts an AC current into a DC current Iv; a smoothing capacitor 13 which removes an AC component included in the DC current output from the rectification part 12; a resistor 18 which detects a current flowing through the series light emitting body 10; a switching element 16 which conducts on-off control; a DC cut choke coil 17 provided between the series light emitting body 10 and the switching element 16; and an inductor 15 provided between the stabilizer 3 and the smoothing capacitor 13. The inductor 15 increases impedance of the lighting control circuit.SELECTED DRAWING: Figure 4
Inventors:
TOMIYAMA HISASHI
URANO MASAHARU
ISEDA KAZUAKI
HAGIWARA SHIGEMI
URANO MASAHARU
ISEDA KAZUAKI
HAGIWARA SHIGEMI
Application Number:
JP2015210809A
Publication Date:
March 03, 2016
Filing Date:
October 27, 2015
Export Citation:
Assignee:
RICOH CO LTD
International Classes:
H05B37/02
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Attorney, Agent or Firm:
Tamio Nishiwaki