JPS62122492U - - Google Patents
Info
- Publication number
- JPS62122492U JPS62122492U JP756786U JP756786U JPS62122492U JP S62122492 U JPS62122492 U JP S62122492U JP 756786 U JP756786 U JP 756786U JP 756786 U JP756786 U JP 756786U JP S62122492 U JPS62122492 U JP S62122492U
- Authority
- JP
- Japan
- Prior art keywords
- converter
- voltage
- display tube
- fluorescent display
- 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
- 239000003990 capacitor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Dc-Dc Converters (AREA)
Description
第１図は本考案の一実施例を示す回路構成図で
ある。
１…コンバータ用供給電源、２…抵抗、３…ト
ランジスタ、４…コンデンサ、５…抵抗、６…ト
ランジスタ、７…抵抗、８…抵抗、９…コンデン
サ、１０…ツエナダイオード、１１…トランス、
１２…ダイオード、１３…コンデンサ、１４…抵
抗、１５…ツエナダイオード、１６…フイラメン
ト用交流電圧、１７…グリツド・アノード用直流
電圧、１８…二次巻線、１９…抵抗、２０…抵抗
、２１…抵抗、２２…コンパレータ、２３…抵抗
、２４…ＡＮＤ素子。
第２図は従来のコンバータの回路図である。
FIG. 1 is a circuit diagram showing an embodiment of the present invention. 1... Power supply for converter, 2... Resistor, 3... Transistor, 4... Capacitor, 5... Resistor, 6... Transistor, 7... Resistor, 8... Resistor, 9... Capacitor, 10... Zener diode, 11... Transformer,
12... Diode, 13... Capacitor, 14... Resistor, 15... Zener diode, 16... AC voltage for filament, 17... DC voltage for grid anode, 18... Secondary winding, 19... Resistor, 20... Resistor, 21... Resistor, 22... Comparator, 23... Resistor, 24... AND element. FIG. 2 is a circuit diagram of a conventional converter.
Claims (1)
ド・アノード用直流電圧を供給するＤＣ／ＤＣ、
ＡＣコンバータにおいて、過電流を検出して前記
コンバータを停止させる回路を付加した事を特徴
とした蛍光表示管用ＤＣ／ＤＣ、ＡＣコンバータ
。 DC/DC supplying AC voltage for filament and DC voltage for grid anode to fluorescent display tube,
A DC/DC, AC converter for a fluorescent display tube, characterized in that a circuit for detecting overcurrent and stopping the converter is added to the AC converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP756786U JPS62122492U (en) | 1986-01-22 | 1986-01-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP756786U JPS62122492U (en) | 1986-01-22 | 1986-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62122492U true JPS62122492U (en) | 1987-08-04 |
Family
ID=30791138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP756786U Pending JPS62122492U (en) | 1986-01-22 | 1986-01-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62122492U (en) |
-
1986
- 1986-01-22 JP JP756786U patent/JPS62122492U/ja active Pending