JPS6287466U - - Google Patents
Info
- Publication number
- JPS6287466U JPS6287466U JP1985179705U JP17970585U JPS6287466U JP S6287466 U JPS6287466 U JP S6287466U JP 1985179705 U JP1985179705 U JP 1985179705U JP 17970585 U JP17970585 U JP 17970585U JP S6287466 U JPS6287466 U JP S6287466U
- Authority
- JP
- Japan
- Prior art keywords
- thermistor
- light emitting
- emitting diode
- temperature compensation
- compensation circuit
- 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
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は、この考案の一実施例を示す回路構成
図である。第２図は、サーミスタの温度特性を示
す説明図である。第３図は、この考案の温度補償
回路による補償前と補償後におけるＬＥＤの相対
発生出力と温度との関係を示す比較図である。第
４図は、従来のＬＥＤ駆動回路を示す回路構成図
である。
図において、ＲＴＨはサーミスタ、Ｒ１は並列
抵抗、Ｒ２は直列抵抗を示す。
FIG. 1 is a circuit diagram showing an embodiment of this invention. FIG. 2 is an explanatory diagram showing the temperature characteristics of the thermistor. FIG. 3 is a comparison diagram showing the relationship between the relative generated output of the LED and the temperature before and after compensation by the temperature compensation circuit of this invention. FIG. 4 is a circuit configuration diagram showing a conventional LED drive circuit. In the figure, RTH represents a thermistor, R 1 represents a parallel resistance, and R 2 represents a series resistance.
Claims (1)
抵抗として、サーミスタを備えることを特徴とす
る、発光ダイオードの温度補償回路。 (2) 前記制御抵抗が、前記サーミスタと、前記
サーミスタに対し並列に接続される並列抵抗と、
前記サーミスタに対し直列に接続される直列抵抗
とから構成されていることを特徴とする、実用新
案登録請求の範囲第１項記載の発光ダイオードの
温度補償回路。[Claims for Utility Model Registration] (1) A temperature compensation circuit for a light emitting diode, characterized by comprising a thermistor as a control resistor for controlling the drive current of the light emitting diode. (2) the control resistor includes the thermistor and a parallel resistor connected in parallel to the thermistor;
2. The temperature compensation circuit for a light emitting diode according to claim 1, further comprising a series resistor connected in series with the thermistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985179705U JPS6287466U (en) | 1985-11-20 | 1985-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985179705U JPS6287466U (en) | 1985-11-20 | 1985-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6287466U true JPS6287466U (en) | 1987-06-04 |
Family
ID=31122998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985179705U Pending JPS6287466U (en) | 1985-11-20 | 1985-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6287466U (en) |
-
1985
- 1985-11-20 JP JP1985179705U patent/JPS6287466U/ja active Pending
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