JPS649296U - - Google Patents
Info
- Publication number
- JPS649296U JPS649296U JP1987104373U JP10437387U JPS649296U JP S649296 U JPS649296 U JP S649296U JP 1987104373 U JP1987104373 U JP 1987104373U JP 10437387 U JP10437387 U JP 10437387U JP S649296 U JPS649296 U JP S649296U
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- series
- emitting diode
- power transformer
- diode bulb
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Audible And Visible Signals (AREA)
Description
第１図および第２図はそれぞれ本考案による表
示灯回路の実施例を示し、第１図は制御電源変圧
器にタツプを有する表示灯回路の一実施例を示す
結線図、第２図は制御電源変圧器にタツプを有し
ない表示灯回路の一実施例を示す結線図、第３図
は従来の表示灯回路の一例を示す結線図である。
５：制御電源変圧器、８ｃ，９ｃ：ＬＥＤ球、
１２：電圧検出リレー、１２ａ：電圧検出リレー
の常開接点、１３：保護ダイオード、１４：電流
制限抵抗。
1 and 2 each show an embodiment of the indicator light circuit according to the present invention, FIG. 1 is a wiring diagram showing an embodiment of the indicator light circuit having a tap on the control power transformer, and FIG. A wiring diagram showing an example of an indicator lamp circuit without a tap on a power transformer. FIG. 3 is a wiring diagram showing an example of a conventional indicator lamp circuit. 5: Control power transformer, 8c, 9c: LED bulb,
12: Voltage detection relay, 12a: Normally open contact of voltage detection relay, 13: Protection diode, 14: Current limiting resistor.
Claims (1)
とした発光ダイオード球に制御電源変圧器のタツ
プ回路を接続するとともに、前記制御電源変圧器
の二次コイルに電圧検出リレーを接続し、この電
圧検出リレーの常開接点を前記発光ダイオード球
と直列に接続したことを特徴とする表示灯回路。 ２ 複数の発光ダイオードを直列に接続して一体
とした発光ダイオード球にこの発光ダイオード球
と同極性の保護ダイオードおよび電流制御抵抗を
直列に接続して制御電源変圧器の二次コイルに接
続したことを特徴とする表示灯回路。[Claims for Utility Model Registration] 1. A tap circuit of a control power transformer is connected to an integrated light emitting diode bulb made by connecting a plurality of light emitting diodes in series, and a voltage detection circuit is connected to the secondary coil of the control power transformer. An indicator light circuit characterized in that a relay is connected, and a normally open contact of the voltage detection relay is connected in series with the light emitting diode bulb. 2. A light emitting diode bulb made up of multiple light emitting diodes connected in series is connected in series with a protection diode and a current control resistor of the same polarity as the light emitting diode bulb, and connected to the secondary coil of the control power transformer. An indicator light circuit featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987104373U JPS649296U (en) | 1987-07-07 | 1987-07-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987104373U JPS649296U (en) | 1987-07-07 | 1987-07-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS649296U true JPS649296U (en) | 1989-01-18 |
Family
ID=31336031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987104373U Pending JPS649296U (en) | 1987-07-07 | 1987-07-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS649296U (en) |
-
1987
- 1987-07-07 JP JP1987104373U patent/JPS649296U/ja active Pending
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