DISCHARGE LAMP LIGHTING DEVICE

Japanese Patent JP3718939

B2

PROBLEM TO BE SOLVED: To restrain mutual interference between respective noise generating parts, and prevent malfunction in a discharge lamp lighting device in which plural noise generating parts exist.
SOLUTION: In a lighting device, a Dc power source part 1 to convert a pulsating voltage obtained from a commercial power supply AC and full-wave- rectified by a rectifier DB into a DC power source, a control part 3 for that, an inverter part 2 to convert the output of the DC power source part 1 into a high frequency, and a control part 4 for that are mounted on a printed wring board 5 formed thin along a lamp form direction, so the output from the inverter part 2 is obtained from both ends of a longitudinal direction of the printed wiring board 5. In this case, patterns are formed in the order of output lines (a), (b), ground wiring (g) through which feedback currents to currents flowing through the output liens (a), (b) flow, and wiring of the first and second control parts 3, 4 from end parts of the longitudinal direction of the printed wiring board 5 to be roughly parallel to the longitudinal direction.

JP2001291599	FLUORESCENT LAMP LIGHTING DEVICE
JP2003257690	POWER SUPPLY DEVICE OF LIGHTING SYSTEM USING MICROWAVES
JP2008041561	DISCHARGE LAMP LIGHTING CIRCUIT

Yoshihiro Sakashita
Koji Nishiura
Yoshifumi Kuroki
Koji Fujimoto
Shinichi Sasada

JP508897A

November 24, 2005

January 14, 1997

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MATSUSHITA ELECTRIC WORKS,LTD.

H05B41/24; F21V23/00; F21V23/02; H05K1/02; H05K1/18; (IPC1-7): H05B41/24; F21V23/00; F21V23/02

JP8321388A
JP7240285A
JP5097096U
JP5041098U
JP8273849A
JP7327376A
JP5033499U

Masahiko Kurata

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