JPS5931198U - Cold cathode discharge lamp lighting device - Google Patents

Cold cathode discharge lamp lighting device

Info

Publication number
JPS5931198U
JPS5931198U JP12561182U JP12561182U JPS5931198U JP S5931198 U JPS5931198 U JP S5931198U JP 12561182 U JP12561182 U JP 12561182U JP 12561182 U JP12561182 U JP 12561182U JP S5931198 U JPS5931198 U JP S5931198U
Authority
JP
Japan
Prior art keywords
discharge lamp
cold cathode
cathode discharge
transistor
lighting device
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
JP12561182U
Other languages
Japanese (ja)
Inventor
嘉典 佐藤
Original Assignee
株式会社東芝
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 by 株式会社東芝 filed Critical 株式会社東芝
Priority to JP12561182U priority Critical patent/JPS5931198U/en
Publication of JPS5931198U publication Critical patent/JPS5931198U/en
Pending legal-status Critical Current

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  • Circuit Arrangements For Discharge Lamps (AREA)

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

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

第１図は熱陰極放電灯を使用した場合の従来例を示す回
路図、第２図はこの考案の一実施例を示　−す回路図、
第３図はこの考案の他の実施例を示す回路図である。 ２１・・・直流電源、２２・・・高周波インバータ回路
、２３・・・抵抗バラスト、２４・・・冷陰極放電灯、
３６゜３７・・・調整用コンデンサ。 １−ＩＦ２５．？１９ − 参　　　　−− ，４１３５ゴー下− 二−−−ｌｌ−ＪFig. 1 is a circuit diagram showing a conventional example in which a hot cathode discharge lamp is used, and Fig. 2 is a circuit diagram showing an embodiment of this invention.
FIG. 3 is a circuit diagram showing another embodiment of this invention. 21... DC power supply, 22... High frequency inverter circuit, 23... Resistance ballast, 24... Cold cathode discharge lamp,
36°37...Adjustment capacitor. 1-IF25. ? 19-Reference--,4135Go-2--ll-J

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 直流電源と、この直流電源に接続され、インバータトラ
ンスの１次巻線とコンデンサとの並列共振回路及びスイ
ッチングトランジスタを具備する直列回路、前記トラン
ジスタのベース側と直流電源のプラス側との間に接続さ
れた始動用抵抗、前記トランジスタのベース・エミッタ
間に接続され、トランジスタの正帰還ループを形成する
ベース駆動回路からなる高周波インバータ回路と、この
インバータ回路におけるインバータトランスの２次巻線
に抵抗バラストを介して接続される冷陰極放電灯と、高
周波交流電圧に対しインピーダンス的に上記抵抗バラス
トに並列になるよう接続される調整用コンデンサとを具
備してなることを特徴とする冷陰極放電灯点灯装置。a DC power supply, a series circuit connected to the DC power supply, comprising a parallel resonant circuit of the primary winding of an inverter transformer and a capacitor, and a switching transistor, connected between the base side of the transistor and the positive side of the DC power supply; a high-frequency inverter circuit consisting of a starting resistor, a base drive circuit connected between the base and emitter of the transistor to form a positive feedback loop of the transistor, and a resistor ballast in the secondary winding of the inverter transformer in this inverter circuit. A cold cathode discharge lamp lighting device comprising: a cold cathode discharge lamp connected through the ballast; and an adjustment capacitor connected in parallel with the resistor ballast in terms of impedance with respect to a high frequency alternating current voltage. .
JP12561182U 1982-08-20 1982-08-20 Cold cathode discharge lamp lighting device Pending JPS5931198U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12561182U JPS5931198U (en) 1982-08-20 1982-08-20 Cold cathode discharge lamp lighting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12561182U JPS5931198U (en) 1982-08-20 1982-08-20 Cold cathode discharge lamp lighting device

Publications (1)

Publication Number Publication Date
JPS5931198U true JPS5931198U (en) 1984-02-27

Family

ID=30285907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12561182U Pending JPS5931198U (en) 1982-08-20 1982-08-20 Cold cathode discharge lamp lighting device

Country Status (1)

Country Link
JP (1) JPS5931198U (en)

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