JPS6284881U - - Google Patents
Info
- Publication number
- JPS6284881U JPS6284881U JP17550385U JP17550385U JPS6284881U JP S6284881 U JPS6284881 U JP S6284881U JP 17550385 U JP17550385 U JP 17550385U JP 17550385 U JP17550385 U JP 17550385U JP S6284881 U JPS6284881 U JP S6284881U
- Authority
- JP
- Japan
- Prior art keywords
- lighting
- display element
- control circuit
- control signal
- lighting control
- 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
Landscapes
- Audible And Visible Signals (AREA)
Description
第１図は本考案の実施例の電気回路図、第２図
は第１図の電源＋Ｂ、制御信号出力端子１０ａの
電圧Ｖａ、トランジスタ１７のベース電圧Ｖｂの
時間的変化の一例とそのときのＬＥＤ１６の点灯
状態を示す図、第３図は本考案をＦＭ受信機にお
けるＭＰＸ回路のステレオパイロツトＬＥＤの点
灯装置に適用した実施例の電気回路図、第４図お
よび第５図は従来装置の説明図である。
図において、１０はＬＥＤ点灯制御回路、１０
ａは制御信号出力端子、１１は制御信号増幅用の
トランジスタ、１２はツエナダイオード、１３，
１４，１５，２１は抵抗、１６はＬＥＤ、１７は
ＬＥＤ駆動用のトランジスタ、＋Ｂは電源、２０
はＭＰＸ用ＩＣ、２２はステレオパイロツトＬＥ
Ｄである。
FIG. 1 is an electrical circuit diagram of an embodiment of the present invention, and FIG. 2 is an example of temporal changes in the power supply +B, the voltage Va at the control signal output terminal 10a, and the base voltage Vb of the transistor 17 in FIG. A diagram showing the lighting state of the LED 16, FIG. 3 is an electric circuit diagram of an embodiment in which the present invention is applied to a lighting device for a stereo pilot LED of an MPX circuit in an FM receiver, and FIGS. 4 and 5 are explanations of a conventional device. It is a diagram. In the figure, 10 is an LED lighting control circuit;
a is a control signal output terminal, 11 is a transistor for control signal amplification, 12 is a Zener diode, 13,
14, 15, 21 are resistors, 16 is an LED, 17 is a transistor for driving the LED, +B is a power supply, 20
is IC for MPX, 22 is stereo pilot LE
It is D.
Claims (1)
発生する点灯制御回路と、 該点灯制御回路と同一電源に接続された前記表
示素子駆動用のスイツチング素子と、 該スイツチング素子の制御端子と前記点灯制御
回路の制御信号出力との間に接続され、前記点灯
制御回路の安定動作電圧以上のツエナ電圧をもつ
ツエナダイオードとを具備したことを特徴とする
表示素子点灯装置。[Claims for Utility Model Registration] A display element, a lighting control circuit that generates a control signal to control lighting and extinction of the display element, and a switching device for driving the display element that is connected to the same power source as the lighting control circuit. and a Zener diode connected between a control terminal of the switching element and a control signal output of the lighting control circuit, and having a Zener voltage higher than a stable operating voltage of the lighting control circuit. Display element lighting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17550385U JPS6284881U (en) | 1985-11-14 | 1985-11-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17550385U JPS6284881U (en) | 1985-11-14 | 1985-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6284881U true JPS6284881U (en) | 1987-05-30 |
Family
ID=31114886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17550385U Pending JPS6284881U (en) | 1985-11-14 | 1985-11-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6284881U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5937690B2 (en) * | 1979-07-18 | 1984-09-11 | 新日本製鐵株式会社 | Rolled material guide device in flat roll rolling mill |
-
1985
- 1985-11-14 JP JP17550385U patent/JPS6284881U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5937690B2 (en) * | 1979-07-18 | 1984-09-11 | 新日本製鐵株式会社 | Rolled material guide device in flat roll rolling mill |
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