JPS59126498U

JPS59126498U - discharge lamp lighting device

Info

Publication number: JPS59126498U
Application number: JP2033283U
Authority: JP
Inventors: 良司皆川; 山崎　広義; 清水　和崇; 次田　和彦
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 1983-02-15
Filing date: 1983-02-15
Publication date: 1984-08-25

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の放電灯点灯装置を示す回路構成図、第２
図はこの考案の一実施例である放電灯点灯装置を示す回
路構成図、第３図はこの考案の他の実施例である放電灯
点灯装置を示す回路構成図、第４図はこの考案のさらに
他の実施例である放電灯点灯装置の要部を示す回路構成
図である。図において、１・・・交流電源、２・・・スイッチ、２
ａ・・・調光用接点、２ｂ・・・全光用接点、３・・・
点灯装置、４・・・出カドランス、５ａ、　　５ｂ・・
・放電灯、６・・・限流インピーダンス、７・・・バイ
パスインピーダンス、７ａ・・・分流器、８・・・始動
補助コンデンサ、８ａ・・・バランサ、９・・・調光用
インピーダンス、４１・・・２次巻線、４２．　４３．
　４４．　４５・・・予熱巻線、？１．　７２．　９１
．　９２・・・巻線である。なお、図中、同一符号は同
一、又は相当部分を示す。Figure 1 is a circuit diagram showing a conventional discharge lamp lighting device;
Fig. 3 is a circuit diagram showing a discharge lamp lighting device which is an embodiment of this invention, Fig. 3 is a circuit diagram showing a discharge lamp lighting device which is another embodiment of this invention, and Fig. 4 is a circuit diagram showing a discharge lamp lighting device which is another embodiment of this invention. It is a circuit block diagram showing the principal part of the discharge lamp lighting device which is still another example. In the figure, 1...AC power supply, 2...switch, 2
a... Contact for dimming, 2b... Contact for full light, 3...
Lighting device, 4... Output lance, 5a, 5b...
・Discharge lamp, 6... Current limiting impedance, 7... Bypass impedance, 7a... Shunt switch, 8... Starting auxiliary capacitor, 8a... Balancer, 9... Dimming impedance, 41 ...Secondary winding, 42. 43.
44. 45... Preheating winding? 1. 72. 91
．． 92... is a winding wire. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

(1) A plurality of discharge lamps having preheating electrodes that are lit by the output of a lighting device energized from an AC power supply, a means for dimming and lighting one part of the discharge lamps among the plurality of discharge lamps, and the discharge lamps. and a preheating device for the electrodes, the preheating device is set so that the preheating voltage during dimming lighting of the discharge lamp to be dimmed lighting is higher than the preheating voltage during full light lighting. A discharge lamp lighting device configured as follows.

(2) The preheating device is energized by the voltage generated by the preheating winding installed in the output transformer when the discharge lamp is dimmed and turned on, and an inductive reactance connected to a circuit through which current flows only when the discharge lamp is dimmed and lit. 2. The discharge lamp lighting device according to claim 1, wherein the discharge lamp lighting device is configured to add the voltage applied to the discharge lamp.

(3) Among the plurality of discharge lamps, the preheating voltage of the electrode of the discharge lamp with a high degree of dimming is set to be higher when the dimming is turned on than when the dimming is turned on. A discharge lamp lighting device according to claim 1 of the utility model registration claim.