JPH03273495A - Light emitting diode display device - Google Patents
Light emitting diode display deviceInfo
- Publication number
- JPH03273495A JPH03273495A JP7204990A JP7204990A JPH03273495A JP H03273495 A JPH03273495 A JP H03273495A JP 7204990 A JP7204990 A JP 7204990A JP 7204990 A JP7204990 A JP 7204990A JP H03273495 A JPH03273495 A JP H03273495A
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- emitting diode
- display device
- emitting diodes
- diode display
- 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)
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
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は発光ダイオードを使用した交流電源の表示回路
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a display circuit for an AC power source using light emitting diodes.
従来の装置は、実開昭６１−１６４５９５号公報、実開
昭５８−１９５３８３号公報に記載のように、単に、発
光ダイオードを発行させるだけとなっていた。なお。Conventional devices simply emit light-emitting diodes, as described in Japanese Utility Model Application Publications No. 61-164595 and Japanese Utility Model Application No. 58-195383. In addition.
この種の装置として関連するものに実開昭５７−１５６
９８６号公報が挙げられる。Related to this type of device is Utility Model Application No. 57-156.
No. 986 is mentioned.
上記従来技術は電源電圧に応じた１発光ダイオードの点
滅については考慮されておらず、又従来は電源電圧に応
じて発光ダイオードを点滅させるためには発光ダイオー
ドとは別にコンパレータや。The above-mentioned conventional technology does not take into account the blinking of one light emitting diode in accordance with the power supply voltage, and conventionally, in order to blink the light emitting diode in accordance with the power supply voltage, a comparator or the like is used separately from the light emitting diode.
定電圧回路などの回路を追加する必要があった。It was necessary to add circuits such as a constant voltage circuit.
本発明の目的はコンパレータなどの回路を追加すること
無く、発光ダイオードだけで電源電圧に応じた発光ダイ
オードの点滅を可能とする発光ダイオード表示器を提供
することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a light emitting diode display device that can blink a light emitting diode in accordance with a power supply voltage using only a light emitting diode without adding a circuit such as a comparator.
上記目的を達成するために、発光ダイオードの直列接続
個数を変えた回路を複数組み合わせたものである。In order to achieve the above object, a plurality of circuits in which the number of serially connected light emitting diodes is changed are combined.
発光ダイオードは、通常、約２ｖの順方向電圧が発生す
るため１発光させるには順方向電圧以上の電圧が必要と
なる６発光ダイオードを、複数個、直列に接続すれば、
その両端電圧は順方向電圧の個数倍となる。この個数を
変えたものを組み合わせることにより、電源電圧に応じ
て点滅させることができているので、コンパレータや、
定電圧回路などの他の回路を必要としない。Light emitting diodes usually generate a forward voltage of about 2V, so a voltage higher than the forward voltage is required to emit one light.If you connect a plurality of 6 light emitting diodes in series,
The voltage across both ends is the number of forward voltages. By combining different numbers of these, it is possible to blink according to the power supply voltage, so it is possible to use a comparator,
No other circuits such as constant voltage circuits are required.
以下、本発明の一実施例を第１図により説明する。 An embodiment of the present invention will be described below with reference to FIG.
第１図において、スピーカ８を駆動するためのＢＴＬパ
ワーアンプ１は発光ダイオード３，４゜６．７を駆動す
る交流電源を兼ねており１発光ダイオード３，４は、互
いに、逆極性に並列接続されており、さらに、抵抗２と
直列接続されている、同様に、発光ダイオード６．７は
抵抗５と直列接続されている。ここでＢＴＬパワーアン
プ１の出力が２ｖ程度になると発光ダイオード７が点燈
する、ＢＴＬパワーアンプ１の出力がさらに大きくなる
につれて、順次、発光ダイオード６、発光ダイオード４
９発光ダイオード３が点燈する０本実施例によればＢＴ
Ｌパワーアンプ１の出力レベルに応じて発光ダイオード
３，４，５，６，７が点燈し、レベルメータとして効果
がある。In FIG. 1, a BTL power amplifier 1 for driving a speaker 8 also serves as an AC power source for driving light emitting diodes 3 and 4°6.7, and the light emitting diodes 3 and 4 are connected in parallel with each other with opposite polarities. Similarly, a light emitting diode 6.7 is connected in series with a resistor 5. Here, when the output of the BTL power amplifier 1 becomes about 2V, the light emitting diode 7 turns on. As the output of the BTL power amplifier 1 becomes further larger, the light emitting diode 6 and the light emitting diode 4 turn on.
9 The light emitting diode 3 lights up 0 According to the embodiment, BT
The light emitting diodes 3, 4, 5, 6, and 7 are turned on according to the output level of the L power amplifier 1, and are effective as a level meter.
本発明によれば、コンパレータや定電圧回路を設けるこ
と無く、発光ダイオードだけでレベルメータとしての効
果がある。According to the present invention, the light emitting diode alone is effective as a level meter without providing a comparator or a constant voltage circuit.
第１図は本発明の一実施例の回路図、第２図は第１図に
よる回路を動作させた時の発光ダイオードの点燈レベル
の説明図である６
１・・・ＢＴＬパワーアンプ、２，５・・・抵抗、３゜
４．６，７・・・発光ダイオード、８・・・スピーカ。FIG. 1 is a circuit diagram of an embodiment of the present invention, and FIG. 2 is an explanatory diagram of the lighting level of a light emitting diode when the circuit according to FIG. 1 is operated.6 1... BTL power amplifier, 2 , 5...Resistor, 3°4.6, 7...Light emitting diode, 8...Speaker.
Claims (1)
ドの列を互いに逆極性になるように並列接続した一対と
、前記一対に直列に抵抗を接続した回路、又は、複数回
路を並列に交流電源と接続した装置において、 各列の前記発光ダイオードの個数を変えたことを特徴と
する発光ダイオード表示器。[Claims] 1. A circuit comprising: a pair of light emitting diodes, one or more light emitting diodes connected in series, connected in parallel so as to have opposite polarities; and a resistor connected in series with the pair; A light emitting diode display device comprising a plurality of circuits connected in parallel to an alternating current power source, characterized in that the number of the light emitting diodes in each column is changed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7204990A JPH03273495A (en) | 1990-03-23 | 1990-03-23 | Light emitting diode display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7204990A JPH03273495A (en) | 1990-03-23 | 1990-03-23 | Light emitting diode display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03273495A true JPH03273495A (en) | 1991-12-04 |
Family
ID=13478140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7204990A Pending JPH03273495A (en) | 1990-03-23 | 1990-03-23 | Light emitting diode display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03273495A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7220022B2 (en) | 1999-02-12 | 2007-05-22 | Fiber Optic Designs, Inc. | Jacketed LED assemblies and light strings containing same |
| US7250730B1 (en) | 2006-01-17 | 2007-07-31 | Fiber Optic Designs, Inc. | Unique lighting string rectification |
| US7265496B2 (en) | 2005-09-23 | 2007-09-04 | Fiber Optic Designs, Inc. | Junction circuit for LED lighting chain |
| US7276858B2 (en) | 2005-10-28 | 2007-10-02 | Fiber Optic Designs, Inc. | Decorative lighting string with stacked rectification |
| US7931390B2 (en) | 1999-02-12 | 2011-04-26 | Fiber Optic Designs, Inc. | Jacketed LED assemblies and light strings containing same |
-
1990
- 1990-03-23 JP JP7204990A patent/JPH03273495A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7344275B2 (en) | 1998-08-28 | 2008-03-18 | Fiber Optic Designs, Inc. | LED assemblies and light strings containing same |
| US7220022B2 (en) | 1999-02-12 | 2007-05-22 | Fiber Optic Designs, Inc. | Jacketed LED assemblies and light strings containing same |
| US7931390B2 (en) | 1999-02-12 | 2011-04-26 | Fiber Optic Designs, Inc. | Jacketed LED assemblies and light strings containing same |
| US8840279B2 (en) | 1999-02-12 | 2014-09-23 | Fiber Optic Designs, Inc. | Jacketed LED assemblies and light strings containing same |
| US9410668B2 (en) | 1999-02-12 | 2016-08-09 | Fiber Optic Designs, Inc. | Light strings including jacketed LED assemblies |
| US7265496B2 (en) | 2005-09-23 | 2007-09-04 | Fiber Optic Designs, Inc. | Junction circuit for LED lighting chain |
| US7276858B2 (en) | 2005-10-28 | 2007-10-02 | Fiber Optic Designs, Inc. | Decorative lighting string with stacked rectification |
| US7250730B1 (en) | 2006-01-17 | 2007-07-31 | Fiber Optic Designs, Inc. | Unique lighting string rectification |
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