JPS6426790U - - Google Patents
Info
- Publication number
- JPS6426790U JPS6426790U JP12186587U JP12186587U JPS6426790U JP S6426790 U JPS6426790 U JP S6426790U JP 12186587 U JP12186587 U JP 12186587U JP 12186587 U JP12186587 U JP 12186587U JP S6426790 U JPS6426790 U JP S6426790U
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- output
- level signal
- light emitting
- emitting 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
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Description
図示した回路は、本考案の駆動回路の一実施例
である。
主な図番の説明、１……制御回路、２……第１
端子、３……第２端子、６……第１発光ダイオー
ド、８……第２発光ダイオード、１０……第１ト
ランジスター、１２……第３発光ダイオード、１
４……第２トランジスター、１６……第４発光ダ
イオード。
The illustrated circuit is one embodiment of the drive circuit of the present invention. Explanation of main drawing numbers, 1...control circuit, 2...1st
Terminal, 3... Second terminal, 6... First light emitting diode, 8... Second light emitting diode, 10... First transistor, 12... Third light emitting diode, 1
4...Second transistor, 16...Fourth light emitting diode.
Claims (1)
号が出力される第１端子及び第２端子を有する制
御回路と、前記第１端子と第２端子との間に接続
されていると共に該第１端子にＨレベルの信号が
出力され、且つ第２端子にＬレベルの信号が出力
されているとき点灯する第１発光ダイオードと、
前記第１端子と第２端子との間に接続されている
と共に該第１端子にＬレベルの信号が出力され、
且つ第２端子にＨレベルの信号が出力されている
とき点灯する第２発光ダイオードと、前記第２端
子にＨレベルの信号が出力されているときバイア
スされると共に前記第１端子にＨレベルの信号が
出力されているとき導通する第１トランジスター
と、該第１トランジスターが導通状態にあるとき
点灯駆動される第３発光ダイオードと、前記第１
端子にＬレベルの信号が出力されているときバイ
アスされると共に前記第２端子にＬレベルの信号
が出力されているとき導通する第２トランジスタ
ーと、該第２トランジスターが導通状態にあると
き点灯駆動される第４発光ダイオードとより成る
発光ダイオードの駆動回路。 a control circuit having a first terminal and a second terminal to which either an H level signal or an L level signal is output; a control circuit connected between the first terminal and the second terminal; a first light emitting diode that lights up when an H level signal is output to one terminal and an L level signal is output to a second terminal;
connected between the first terminal and the second terminal, and an L level signal is output to the first terminal;
and a second light emitting diode that lights up when an H level signal is output to the second terminal, and a second light emitting diode that is biased when an H level signal is output to the second terminal and has an H level signal output to the first terminal. a first transistor that is conductive when a signal is output; a third light emitting diode that is driven to be lit when the first transistor is conductive;
a second transistor that is biased when an L-level signal is output to the terminal and conductive when the L-level signal is output to the second terminal; and a lighting drive when the second transistor is conductive. A light emitting diode drive circuit comprising a fourth light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12186587U JPS6426790U (en) | 1987-08-08 | 1987-08-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12186587U JPS6426790U (en) | 1987-08-08 | 1987-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6426790U true JPS6426790U (en) | 1989-02-15 |
Family
ID=31369265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12186587U Pending JPS6426790U (en) | 1987-08-08 | 1987-08-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6426790U (en) |
-
1987
- 1987-08-08 JP JP12186587U patent/JPS6426790U/ja active Pending
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