JPH0280329U - - Google Patents
Info
- Publication number
- JPH0280329U JPH0280329U JP15724088U JP15724088U JPH0280329U JP H0280329 U JPH0280329 U JP H0280329U JP 15724088 U JP15724088 U JP 15724088U JP 15724088 U JP15724088 U JP 15724088U JP H0280329 U JPH0280329 U JP H0280329U
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- switch
- voltage
- display circuit
- switching
- 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
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Description
第１図は本考案の一実施例の走行表示回路であ
り、第２図は従来の走行表示回路である。
１…走行表示回路、２…スイツチ、３…第１の
発光ダイオード、４…第２の発光ダイオード、７
…抵抗、１０…演算増幅器。
FIG. 1 shows a running display circuit according to an embodiment of the present invention, and FIG. 2 shows a conventional running display circuit. DESCRIPTION OF SYMBOLS 1... Running display circuit, 2... Switch, 3... First light emitting diode, 4... Second light emitting diode, 7
...Resistor, 10...Operation amplifier.
Claims (1)
一対の第１および第２の発光ダイオードの一方を
点灯させて走行方向を表示する走行表示回路にお
いて、 直流電圧が印加される前記スイツチに流れる電
流を制限する抵抗と、 前記スイツチの切り換え時の電圧および基準電
圧を比較して、順方向に直列に接続されるととも
に直流電圧が印加される前記第１の発光ダイオー
ドおよび第２の発光ダイオードの間に比較結果を
出力する演算増幅器とを含むことを特徴とする走
行表示回路。[Claims for Utility Model Registration] In a driving display circuit that displays a driving direction by lighting one of a pair of first and second light emitting diodes corresponding to the driving direction by switching a switch, A resistor that limits the current flowing through the switch is compared with a voltage at the time of switching the switch and a reference voltage, and the first light emitting diode and the second light emitting diode are connected in series in the forward direction and to which a DC voltage is applied. A running display circuit comprising: an operational amplifier that outputs a comparison result between light emitting diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15724088U JPH0280329U (en) | 1988-12-01 | 1988-12-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15724088U JPH0280329U (en) | 1988-12-01 | 1988-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0280329U true JPH0280329U (en) | 1990-06-20 |
Family
ID=31436512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15724088U Pending JPH0280329U (en) | 1988-12-01 | 1988-12-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0280329U (en) |
-
1988
- 1988-12-01 JP JP15724088U patent/JPH0280329U/ja active Pending
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