JPS614448U - Light emitting diode drive circuit - Google Patents
Light emitting diode drive circuitInfo
- Publication number
- JPS614448U JPS614448U JP1985066091U JP6609185U JPS614448U JP S614448 U JPS614448 U JP S614448U JP 1985066091 U JP1985066091 U JP 1985066091U JP 6609185 U JP6609185 U JP 6609185U JP S614448 U JPS614448 U JP S614448U
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- emitting diode
- terminal
- drive circuit
- diode drive
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のこの種駆動回路の二例の回路図、第２図
も同じく従来の回路の回路図、第３図は本考案の一実施
例の回路図である。
１，１１，２１・・・・・・入力端子、２，３，１２，
，２２・・・・・・論理回路、４，１４，２４，５，１
５，２５・・・・・・発光ダイオード、６，１６，２６
，７・・・・・・抵抗、８，２８・・・・・・電源、２
９・・・・・・ダイオード。FIG. 1 is a circuit diagram of two examples of a conventional drive circuit of this type, FIG. 2 is a circuit diagram of a conventional circuit, and FIG. 3 is a circuit diagram of an embodiment of the present invention. 1, 11, 21... Input terminal, 2, 3, 12,
, 22...Logic circuit, 4, 14, 24, 5, 1
5, 25... Light emitting diode, 6, 16, 26
, 7... Resistance, 8, 28... Power supply, 2
9...Diode.
Claims (1)
個の抵抗を介して電源に接続され、また一方の発光ダイ
オードの他方の端子は電圧レベルシフト用回路に、他方
の発光ダイオードの他方の端子は高低２つのレベルを示
す１個の出力端子を有する論理回路の該出力端子に接続
され、該論理回路の制御により上記２個の発光ダイすー
ドの所要の１個を該論理回路出力レベルで選択発光させ
るよう構成されたことを特徴とする発光グイオードの駆
動回路。One terminal of each of the two light emitting diodes is both 1
The other terminal of one light emitting diode is connected to a power supply through a resistor, and the other terminal of one light emitting diode is connected to a voltage level shifting circuit, and the other terminal of the other light emitting diode has one output terminal that shows two levels: high and low. A light emitting device connected to the output terminal of a logic circuit, and configured to selectively cause a required one of the two light emitting diodes to emit light at an output level of the logic circuit under control of the logic circuit. Guiode drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985066091U JPS614448U (en) | 1985-05-02 | 1985-05-02 | Light emitting diode drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985066091U JPS614448U (en) | 1985-05-02 | 1985-05-02 | Light emitting diode drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS614448U true JPS614448U (en) | 1986-01-11 |
Family
ID=30598673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985066091U Pending JPS614448U (en) | 1985-05-02 | 1985-05-02 | Light emitting diode drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS614448U (en) |
-
1985
- 1985-05-02 JP JP1985066091U patent/JPS614448U/en active Pending
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