JPH0457894U - - Google Patents
Info
- Publication number
- JPH0457894U JPH0457894U JP9856190U JP9856190U JPH0457894U JP H0457894 U JPH0457894 U JP H0457894U JP 9856190 U JP9856190 U JP 9856190U JP 9856190 U JP9856190 U JP 9856190U JP H0457894 U JPH0457894 U JP H0457894U
- Authority
- JP
- Japan
- Prior art keywords
- display tube
- fluorescent display
- display control
- secondary coil
- resistor
- 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
Links
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Description
第１図は、本考案に係る蛍光表示管の駆動回路
の構成を示すブロツク図である。第２図は、従来
の蛍光表示管の駆動回路の構成を示すブロツク図
である。第３図は、ダイナミツク駆動形の蛍光表
示管の構造を模式的に示す平面図である。
１０……蛍光表示管、１１……蛍光表示管のフ
イラメント、１２……蛍光表示管のプレート電極
、１３……蛍光表示管のグリツド電極、２０……
表示制御部、３０……電源部、３２……電源トラ
ンス、３３……電源トランスの２次コイル、３６
……正の電源安定化回路、３９……負の電源安定
化回路、４０……抵抗、４１……ツエナーダイオ
ード、４３……コンデンサ。
FIG. 1 is a block diagram showing the configuration of a drive circuit for a fluorescent display tube according to the present invention. FIG. 2 is a block diagram showing the configuration of a conventional fluorescent display tube drive circuit. FIG. 3 is a plan view schematically showing the structure of a dynamically driven fluorescent display tube. 10...Fluorescent display tube, 11...Filament of fluorescent display tube, 12...Plate electrode of fluorescent display tube, 13...Grid electrode of fluorescent display tube, 20...
Display control unit, 30...Power supply unit, 32...Power transformer, 33...Secondary coil of power transformer, 36
... Positive power supply stabilization circuit, 39 ... Negative power supply stabilization circuit, 40 ... Resistor, 41 ... Zener diode, 43 ... Capacitor.
補正 平３．１．１６
実用新案登録請求の範囲を次のように補正する
。Amendment 3/1/16 The scope of claims for utility model registration is amended as follows.
【実用新案登録請求の範囲】
電源トランスの２次コイルに接続されたフイラ
メントがカソード電極として機能する蛍光表示管
のプレート電流又はグリツド電流を表示制御部に
より断続させることによつて表示制御を行うよう
にした蛍光表示管の駆動回路において、
上記表示制御部に供給する一方の駆動電源を安
定化する一方の電源安定化回路の出力端と接地と
の間に直列接続されたツエナーダイオード及び抵
抗と、
上記ツエナーダイオードと抵抗との接続点にベ
ースが接続され、上記一方の電源安定化回路の出
力端にコレクタが接続され、上記蛍光表示管のフ
イラメントが接続された上記２次コイルの中点に
エミツタが接続されたトランジスタと、
上記表示制御部に供給する他方の駆動電源を安
定化する他方の電源安定化回路の出力端と上記２
次コイルの中点との間を接続するコンデンサとを
備えてなることを特徴とする蛍光表示管の駆動回
路。[Claims for Utility Model Registration] Display control is performed by intermittent plate current or grid current of a fluorescent display tube in which a filament connected to a secondary coil of a power transformer functions as a cathode electrode by a display control unit. In the drive circuit for the fluorescent display tube, a Zener diode and a resistor are connected in series between the output terminal of one of the power supply stabilizing circuits for stabilizing one of the drive power supplies to the display control section and the ground; A base is connected to the connection point between the Zener diode and the resistor, a collector is connected to the output end of one of the power supply stabilization circuits, and an emitter is connected to the midpoint of the secondary coil to which the filament of the fluorescent display tube is connected. the output terminal of the other power supply stabilizing circuit that stabilizes the other drive power supply supplied to the display control section;
A drive circuit for a fluorescent display tube, comprising a capacitor connected between the center point of the next coil and the center point of the second coil.
Claims (1)
メントがカソード電極として機能する蛍光表示管
のプレート電流又はグリツド電流を表示制御部に
より断続させることによつて表示制御を行うよう
にした蛍光表示管の駆動回路において、 上記表示制御部に供給する負の駆動電源を安定
化する負の電源安定化回路の出力端と接地との間
に直列接続されたツエナーダイオード及び抵抗と
、 上記ツエナーダイオードと抵抗との接続点にベ
ースが接続され、上記負の電源安定化回路の出力
端にコレクタが接続され、上記蛍光表示管のフイ
ラメントが接続された上記２次コイルの中点にエ
ミツタが接続されたトランジスタと、 上記表示制御部に供給する正の駆動電源を安定
化する正の電源安定化回路の出力端と上記２次コ
イルの中点との間を接続するコンデンサとを備え
てなることを特徴とする蛍光表示管の駆動回路。[Claims for Utility Model Registration] Display control is performed by intermittent plate current or grid current of a fluorescent display tube in which a filament connected to a secondary coil of a power transformer functions as a cathode electrode by a display control unit. In the drive circuit for the fluorescent display tube, a Zener diode and a resistor are connected in series between the output terminal of a negative power stabilizing circuit that stabilizes the negative drive power supplied to the display control unit and the ground; A base is connected to the connection point between the Zener diode and the resistor, a collector is connected to the output end of the negative power supply stabilizing circuit, and an emitter is connected to the midpoint of the secondary coil to which the filament of the fluorescent display tube is connected. and a capacitor connected between the output terminal of a positive power stabilizing circuit that stabilizes the positive drive power supplied to the display control section and the midpoint of the secondary coil. A drive circuit for a fluorescent display tube, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9856190U JPH0457894U (en) | 1990-09-21 | 1990-09-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9856190U JPH0457894U (en) | 1990-09-21 | 1990-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0457894U true JPH0457894U (en) | 1992-05-18 |
Family
ID=31839838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9856190U Pending JPH0457894U (en) | 1990-09-21 | 1990-09-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0457894U (en) |
-
1990
- 1990-09-21 JP JP9856190U patent/JPH0457894U/ja active Pending