JPS6448899U - - Google Patents

Info

Publication number
JPS6448899U
JPS6448899U JP14279887U JP14279887U JPS6448899U JP S6448899 U JPS6448899 U JP S6448899U JP 14279887 U JP14279887 U JP 14279887U JP 14279887 U JP14279887 U JP 14279887U JP S6448899 U JPS6448899 U JP S6448899U
Authority
JP
Japan
Prior art keywords
circuit
discharge lamp
frequency
switching
ignition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14279887U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP14279887U priority Critical patent/JPS6448899U/ja
Publication of JPS6448899U publication Critical patent/JPS6448899U/ja
Pending legal-status Critical Current

Links

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  • Circuit Arrangements For Discharge Lamps (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案に係る放電ランプ点灯装置の好
ましい実施例のブロクダイヤグラム、第２図は本
考案に係る放電ランプ点灯装置の概念図、第３図
と第４図は従来技術に係る放電ランプ点灯装置の
概念図である。 ＡＣ……交流入力、ＣＯＮ……制御回路、Ｆ１
，Ｆ２……フイルター回路、ＩＧ……イグニツシ
ヨン回路、ＬＦ……ラインフイルタ、Ｒ１，Ｒ２
……整流回路、Ｔ……トランス、ＶＲ……バリス
タ、ＸＬ……キセノンランプ。 FIG. 1 is a block diagram of a preferred embodiment of the discharge lamp lighting device according to the present invention, FIG. 2 is a conceptual diagram of the discharge lamp lighting device according to the present invention, and FIGS. 3 and 4 are discharge lamps according to the prior art. It is a conceptual diagram of a lighting device. AC...alternating current input, CON...control circuit, F1
, F2...Filter circuit, IG...Ignition circuit, LF...Line filter, R1, R2
... Rectifier circuit, T ... transformer, VR ... varistor, XL ... xenon lamp.

Claims (1)

【実用新案登録請求の範囲】 交流入力を整流する整流回路と、整流回路の出
力を高周波数で断続するスイツチング回路と、ス
イツチング回路によつて断続された整流回路の出
力の低周波成分を通過させるフイルター回路と、
放電ランプを点灯するイグニツシヨン回路を備え
る放電ランプ点灯装置において、 上記スイツチング回路より前段に、上記スイツ
チング回路のスイツチング周波数より下の周波数
から上記イグニツシヨン回路の雑音周波数の上限
の間の周波数帯域の信号を遮断するフイルタを備
え、上記放電ランプのランプハウスに上記イグニ
ツシヨン回路が設けられ、放電ランプ点灯回路の
ハウジングと放電ランプのハウジングが共通のケ
ーシングに収納され、上記ケーシングが電気的に
シールドされていることを特徴とする放電ランプ
点灯装置。[Claims for Utility Model Registration] A rectifier circuit that rectifies AC input, a switching circuit that switches the output of the rectifier circuit on and off at a high frequency, and a low frequency component of the output of the rectification circuit that is switched on and off by the switching circuit. filter circuit,
In a discharge lamp lighting device comprising an ignition circuit for lighting a discharge lamp, a signal in a frequency band between a frequency lower than the switching frequency of the switching circuit and an upper limit of the noise frequency of the ignition circuit is cut off at a stage before the switching circuit. The ignition circuit is provided in the lamp house of the discharge lamp, the housing of the discharge lamp lighting circuit and the housing of the discharge lamp are housed in a common casing, and the casing is electrically shielded. Characteristic discharge lamp lighting device.
JP14279887U 1987-09-18 1987-09-18 Pending JPS6448899U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14279887U JPS6448899U (en) 1987-09-18 1987-09-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14279887U JPS6448899U (en) 1987-09-18 1987-09-18

Publications (1)

Publication Number Publication Date
JPS6448899U true JPS6448899U (en) 1989-03-27

Family

ID=31409048

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14279887U Pending JPS6448899U (en) 1987-09-18 1987-09-18

Country Status (1)

Country Link
JP (1) JPS6448899U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0358900U (en) * 1989-10-14 1991-06-10

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS472550U (en) * 1971-01-28 1972-08-29
JPS5591594A (en) * 1978-12-28 1980-07-11 Fuoresuto Electric Co Dc stabilized starter circuit
JPS57199101A (en) * 1981-06-03 1982-12-07 Olympus Optical Co Lamp house
JPS5830062A (en) * 1981-07-31 1983-02-22 ゼネラル・エレクトリツク・カンパニイ Illuminator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS472550U (en) * 1971-01-28 1972-08-29
JPS5591594A (en) * 1978-12-28 1980-07-11 Fuoresuto Electric Co Dc stabilized starter circuit
JPS57199101A (en) * 1981-06-03 1982-12-07 Olympus Optical Co Lamp house
JPS5830062A (en) * 1981-07-31 1983-02-22 ゼネラル・エレクトリツク・カンパニイ Illuminator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0358900U (en) * 1989-10-14 1991-06-10

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