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
Application number
JP1987042050U
Other languages
Japanese (ja)
Other versions
JPH0537487Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1987042050U priority Critical patent/JPH0537487Y2/ja
Publication of JPS63149557U publication Critical patent/JPS63149557U/ja
Application granted granted Critical
Publication of JPH0537487Y2 publication Critical patent/JPH0537487Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Programmable Controllers (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

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)

【実用新案登録請求の範囲】 プログラマブルコントローラのＬＥＤ（発光ダ
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:
JP1987042050U 1987-03-24 1987-03-24 Expired - Lifetime JPH0537487Y2 (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006030591A (en) * 2004-07-16 2006-02-02 Murata Mach Ltd Electronic equipment

Cited By (1)

* Cited by examiner, † Cited by third party
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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