JPS624885U - - Google Patents
Info
- Publication number
- JPS624885U JPS624885U JP9542685U JP9542685U JPS624885U JP S624885 U JPS624885 U JP S624885U JP 9542685 U JP9542685 U JP 9542685U JP 9542685 U JP9542685 U JP 9542685U JP S624885 U JPS624885 U JP S624885U
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- converter circuit
- display tube
- fluorescent display
- zener diode
- 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
- 230000010355 oscillation Effects 0.000 claims 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案による蛍光表示管用のＤＣ―Ｄ
Ｃコンバーター回路である。
１，９，１２……ツエナーダイオード、２，５
，８，１３……抵抗器、３，６……トランジスタ
、４，７，１４……コンデンサ、１０……トラン
ス、１１，２０……ダイオード、１５，１６，１
７，１８，１９……出力端子、２１，２２……入
力端子。
Figure 1 shows a DC-D for a fluorescent display tube according to the present invention.
This is a C converter circuit. 1, 9, 12... Zener diode, 2, 5
,8,13...Resistor,3,6...Transistor,4,7,14...Capacitor,10...Transformer,11,20...Diode,15,16,1
7, 18, 19...output terminals, 21, 22...input terminals.
Claims (1)
グオシレーターを構成して蛍光表示管にドライブ
電圧を供給するＤＣ―ＤＣコンバータ回路におい
て発振用トランジスタに電力を供給するベース抵
抗に直列にツエナーダイオードを配しかつ、発振
用トランジスタのベースからダイオードを介して
電極を引出し、その電極を接地することにより、
発振をデイスエーブルする手段と、前記ツエナー
ダイオードによりある一定の電圧以下ではドライ
ブ電圧を発生しない手段の両者を具備することを
特徴とする蛍光表示管のＤＣ―ＤＣコンバーター
回路。 In a DC-DC converter circuit that uses a transformer and configures a blocking oscillator with transistors to supply a drive voltage to a fluorescent display tube, a Zener diode is arranged in series with a base resistor that supplies power to an oscillation transistor, and By drawing out an electrode from the base of the oscillation transistor via a diode and grounding that electrode,
A DC-DC converter circuit for a fluorescent display tube, comprising both means for disabling oscillation and means for preventing the Zener diode from generating a drive voltage below a certain voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9542685U JPS624885U (en) | 1985-06-24 | 1985-06-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9542685U JPS624885U (en) | 1985-06-24 | 1985-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS624885U true JPS624885U (en) | 1987-01-13 |
Family
ID=30959939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9542685U Pending JPS624885U (en) | 1985-06-24 | 1985-06-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS624885U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6230464U (en) * | 1985-08-06 | 1987-02-24 | ||
| JPS6325907U (en) * | 1986-08-05 | 1988-02-20 |
-
1985
- 1985-06-24 JP JP9542685U patent/JPS624885U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6230464U (en) * | 1985-08-06 | 1987-02-24 | ||
| JPS6325907U (en) * | 1986-08-05 | 1988-02-20 |