JPS58185894U - Fluorescent display tube drive circuit - Google Patents

Fluorescent display tube drive circuit

Info

Publication number
JPS58185894U
JPS58185894U JP6902682U JP6902682U JPS58185894U JP S58185894 U JPS58185894 U JP S58185894U JP 6902682 U JP6902682 U JP 6902682U JP 6902682 U JP6902682 U JP 6902682U JP S58185894 U JPS58185894 U JP S58185894U
Authority
JP
Japan
Prior art keywords
fluorescent display
display tube
drive circuit
tube drive
display
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
JP6902682U
Other languages
Japanese (ja)
Inventor
坂口　正三郎
Original Assignee
パイオニア株式会社
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 パイオニア株式会社 filed Critical パイオニア株式会社
Priority to JP6902682U priority Critical patent/JPS58185894U/en
Publication of JPS58185894U publication Critical patent/JPS58185894U/en
Pending legal-status Critical Current

Links

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 drawings]

第１図は従来の螢光表示管駆動回路の一実施例を示す回
路図、第２図ａ〜ｄは第１図に示す回路の各部動作波形
図、第３図はこの考案による螢光表示管駆動回路の一実
施例を示す回路図である。 ＦＬ・・・螢光表示管、Ｋ・・・カソード、Ｇ１−Ｇ３
・・・グリッド、Ａ１ａ〜Ａ３ｅ・・・アノード、Ｑ、
−Ｇ７・・・スイッチング素子、Ｒ・・・プルダウン抵
抗、Ｇ１・・・ナントゲート、０２〜Ｇ４・・・オアゲ
ート。Fig. 1 is a circuit diagram showing an example of a conventional fluorescent display tube drive circuit, Fig. 2 a to d are operational waveform diagrams of each part of the circuit shown in Fig. 1, and Fig. 3 is a fluorescent display according to this invention. It is a circuit diagram showing one example of a tube drive circuit. FL...Fluorescent display tube, K...Cathode, G1-G3
... Grid, A1a to A3e ... Anode, Q,
-G7...Switching element, R...Pull-down resistor, G1...Nant gate, 02-G4...OR gate.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 螢光表示管のカソードに対してグリッドおよびアノード
に正電圧を印加することによって表示を行なわせる螢光
表示管駆動装置において、各グリッドによって選択され
たアノードのすべてが非選択の場合を検出する無表示検
出回路と、この無表示検出回路の出力によって該無表示
桁のグリッドへの通電を禁止する通電制御回路とを備え
たことを特徴とする螢光表示管駆動回路。In a fluorescent display tube driving device that performs display by applying a positive voltage to a grid and an anode with respect to a cathode of a fluorescent display tube, there is a device that detects when all of the anodes selected by each grid are non-selected. 1. A fluorescent display tube drive circuit comprising: a display detection circuit; and an energization control circuit that prohibits energization to the grid of the non-display digits based on the output of the non-display detection circuit.
JP6902682U 1982-05-12 1982-05-12 Fluorescent display tube drive circuit Pending JPS58185894U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6902682U JPS58185894U (en) 1982-05-12 1982-05-12 Fluorescent display tube drive circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6902682U JPS58185894U (en) 1982-05-12 1982-05-12 Fluorescent display tube drive circuit

Publications (1)

Publication Number Publication Date
JPS58185894U true JPS58185894U (en) 1983-12-10

Family

ID=30078769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6902682U Pending JPS58185894U (en) 1982-05-12 1982-05-12 Fluorescent display tube drive circuit

Country Status (1)

Country Link
JP (1) JPS58185894U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5324731A (en) * 1976-08-20 1978-03-07 Futaba Denshi Kogyo Kk Fluorescent display unit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5324731A (en) * 1976-08-20 1978-03-07 Futaba Denshi Kogyo Kk Fluorescent display unit

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