JPS587497U - discharge lamp lighting device - Google Patents

discharge lamp lighting device

Info

Publication number
JPS587497U
JPS587497U JP10223481U JP10223481U JPS587497U JP S587497 U JPS587497 U JP S587497U JP 10223481 U JP10223481 U JP 10223481U JP 10223481 U JP10223481 U JP 10223481U JP S587497 U JPS587497 U JP S587497U
Authority
JP
Japan
Prior art keywords
discharge lamp
lighting device
lamp lighting
impedance element
cold cathode
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
JP10223481U
Other languages
Japanese (ja)
Inventor
弘 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 JP10223481U priority Critical patent/JPS587497U/en
Publication of JPS587497U publication Critical patent/JPS587497U/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図は従来例を示す回路図、第２図は同従来例におけ
るランプ電流、相対光出力の温度に対する変化を示すグ
ラフ、第３図はこの考案の実施例を示す回路図、第４図
は同実施例におけるランプ電流、相対光出力、正特性サ
ーミスタ抵抗、合成抵抗の温度に対する変化を示すグラ
フである。 １２・・・抵抗バラスト、１３・・・冷陰極けい光灯、
１４・・・正特性サーミスタ。Fig. 1 is a circuit diagram showing a conventional example, Fig. 2 is a graph showing changes in lamp current and relative light output with respect to temperature in the conventional example, Fig. 3 is a circuit diagram showing an embodiment of this invention, Fig. 4 is a graph showing changes in lamp current, relative light output, positive temperature coefficient thermistor resistance, and composite resistance with respect to temperature in the same example. 12... Resistance ballast, 13... Cold cathode fluorescent lamp,
14...Positive characteristic thermistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電流制限用インピーダンス素子を介して冷陰極放電灯を
点灯制御する放電灯点灯装置において、前記インピーダ
ンス素子に正特性サーミスタを並列に接続したことを特
徴とする放電灯点灯装置。1. A discharge lamp lighting device for controlling lighting of a cold cathode discharge lamp via a current limiting impedance element, characterized in that a positive temperature coefficient thermistor is connected in parallel to the impedance element.
JP10223481U 1981-07-09 1981-07-09 discharge lamp lighting device Pending JPS587497U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10223481U JPS587497U (en) 1981-07-09 1981-07-09 discharge lamp lighting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10223481U JPS587497U (en) 1981-07-09 1981-07-09 discharge lamp lighting device

Publications (1)

Publication Number Publication Date
JPS587497U true JPS587497U (en) 1983-01-18

Family

ID=29896882

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10223481U Pending JPS587497U (en) 1981-07-09 1981-07-09 discharge lamp lighting device

Country Status (1)

Country Link
JP (1) JPS587497U (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491052A (en) * 1972-04-18 1974-01-08
JPS4962665A (en) * 1972-09-14 1974-06-18
JPS555359A (en) * 1978-06-27 1980-01-16 Kawasaki Heavy Ind Ltd Fabricating of side wall of underground tank

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491052A (en) * 1972-04-18 1974-01-08
JPS4962665A (en) * 1972-09-14 1974-06-18
JPS555359A (en) * 1978-06-27 1980-01-16 Kawasaki Heavy Ind Ltd Fabricating of side wall of underground tank

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