JPS63149557U - - Google Patents
Info
- Publication number
- JPS63149557U JPS63149557U JP1987042050U JP4205087U JPS63149557U JP S63149557 U JPS63149557 U JP S63149557U JP 1987042050 U JP1987042050 U JP 1987042050U JP 4205087 U JP4205087 U JP 4205087U JP S63149557 U JPS63149557 U JP S63149557U
- Authority
- JP
- Japan
- Prior art keywords
- lighting
- signal
- circuit
- led
- digit
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Programmable Controllers (AREA)
Description
第1図は本考案実施例のLED点灯回路の回路
構成を示す回路図、第2図は第1図の実施例回路
の各部の信号波形を示すタイミングチヤート、第
3図は第1図のLED点灯回路をLEDダイナミ
ツク点灯に使用する場合の回路構成例を示す回路
図、第4図は第1図のLED点灯回路をLEDス
タテイツク点灯に使用する場合の回路構成例を示
す回路図である。
1……セレクタ、2……分周回路、3……デコ
ーダ、4……制御回路、5……ORゲート、6…
…ANDゲート、7……LED点灯回路、8……
ドライバ、9……LED、10……抵抗、11…
…トランジスタ、12〜15……8ビツト・ラツ
チ回路。
Fig. 1 is a circuit diagram showing the circuit configuration of the LED lighting circuit according to the embodiment of the present invention, Fig. 2 is a timing chart showing signal waveforms of each part of the embodiment circuit of Fig. 1, and Fig. 3 is the LED lighting circuit of Fig. 1. FIG. 4 is a circuit diagram showing an example of the circuit configuration when the lighting circuit is used for dynamic LED lighting. FIG. 4 is a circuit diagram showing an example of the circuit configuration when the LED lighting circuit of FIG. 1 is used for static LED lighting. 1... Selector, 2... Frequency dividing circuit, 3... Decoder, 4... Control circuit, 5... OR gate, 6...
...AND gate, 7...LED lighting circuit, 8...
Driver, 9...LED, 10...Resistor, 11...
...Transistor, 12-15...8-bit latch circuit.
Claims (1)
イオード)を点灯する点灯回路において、 前記LEDのダイナミツク点灯を行うためのク
ロツクの分周信号と、リセツト信号と、前記分周
信号をデコードした桁信号とから前記LEDのス
タテツク点灯に用いるストローブ信号を発生する
回路を有し、 前記桁信号により前記LEDのダイナミツク点
灯を行い、前記桁信号と前記ストローブ信号とに
より前記LEDのスタテイツク点灯を行うことを
特徴とする点灯回路。[Claims for Utility Model Registration] A lighting circuit for lighting an LED (light emitting diode) of a programmable controller, which decodes a clock frequency division signal, a reset signal, and the frequency division signal for dynamically lighting the LED. The circuit includes a circuit that generates a strobe signal used for statically lighting the LED from a digit signal, dynamically lighting the LED based on the digit signal, and statically lighting the LED based on the digit signal and the strobe signal. A lighting circuit featuring:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987042050U JPH0537487Y2 (en) | 1987-03-24 | 1987-03-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987042050U JPH0537487Y2 (en) | 1987-03-24 | 1987-03-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63149557U true JPS63149557U (en) | 1988-10-03 |
JPH0537487Y2 JPH0537487Y2 (en) | 1993-09-22 |
Family
ID=30857607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987042050U Expired - Lifetime JPH0537487Y2 (en) | 1987-03-24 | 1987-03-24 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0537487Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006030591A (en) * | 2004-07-16 | 2006-02-02 | Murata Mach Ltd | Electronic equipment |
-
1987
- 1987-03-24 JP JP1987042050U patent/JPH0537487Y2/ja not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006030591A (en) * | 2004-07-16 | 2006-02-02 | Murata Mach Ltd | Electronic equipment |
Also Published As
Publication number | Publication date |
---|---|
JPH0537487Y2 (en) | 1993-09-22 |
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