Title:
LIGHTING DEVICE AND LIGHTING FIXTURE
Document Type and Number:
Japanese Patent JP2018101548
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a lighting device and a lighting fixture capable of improving lighting efficiency.SOLUTION: A bleeder circuit 13 causes a bleeder current I1 to flow through an output terminal of a rectifier circuit 10 at least during a lighting-off period. A power supply circuit 14 has a parallel circuit of a constant voltage diode ZD2 and a capacitor C11 and supplies a control power supply current Icc discharged from the capacitor C11 to a drive circuit. The bleeder circuit 13 also supplies the bleeder current I1 to parallel circuits (the constant voltage diode ZD2 and the capacitor C11). The power supply circuit 14 supplies electric power from the capacitor C11 charged with the bleeder current I1 to drive circuits (a first drive circuit 11 and a second drive circuit 12).SELECTED DRAWING: Figure 1
Inventors:
IDO SHIGERU
Application Number:
JP2016247197A
Publication Date:
June 28, 2018
Filing Date:
December 20, 2016
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
H05B37/02; F21S2/00; F21S8/02
Domestic Patent References:
| JP2013020931A | 2013-01-31 | |||
| JPH05109492A | 1993-04-30 | |||
| JP2008104274A | 2008-05-01 |
Foreign References:
| WO2015145287A1 | 2015-10-01 |
Attorney, Agent or Firm:
Patent business corporation Hokuto patent office
Keisei Nishikawa
Takeshi Sakaguchi
Hidetoshi Kitade
Nakaishi Haruki
Keisei Nishikawa
Takeshi Sakaguchi
Hidetoshi Kitade
Nakaishi Haruki