JPH0377465U - - Google Patents
Info
- Publication number
- JPH0377465U JPH0377465U JP1989138204U JP13820489U JPH0377465U JP H0377465 U JPH0377465 U JP H0377465U JP 1989138204 U JP1989138204 U JP 1989138204U JP 13820489 U JP13820489 U JP 13820489U JP H0377465 U JPH0377465 U JP H0377465U
- Authority
- JP
- Japan
- Prior art keywords
- led
- resistor
- cds
- photocoupler
- output
- 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
Links
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図はこの考案によるＬＥＤの温度補正回路
の構成図、第２図はＬＥＤ５ＡとＣｄＳ−Ｓｅ抵
抗器４Ｂの特性曲線図、第３図はＬＥＤの光出力
特性図、第４図は従来技術によるＬＥＤの温度補
正回路である。
１……信号発生器、２……ＬＥＤ、３……サー
ミスタ、４……差動増幅器、４Ｃ……基準電源、
５……フオトカプラ、５Ａ……ＬＥＤ、５Ｂ……
ＣｄＳ−Ｓｅ……抵抗器、６……ＬＥＤ駆動増幅
器、６Ａ，６Ｂ……増幅器、７……ＬＥＤ駆動増
幅器、７Ａ，７Ｂ……増幅器、８Ａ〜８Ｅ……抵
抗器。
Fig. 1 is a configuration diagram of the LED temperature correction circuit according to this invention, Fig. 2 is a characteristic curve diagram of LED 5A and CdS-Se resistor 4B, Fig. 3 is a light output characteristic diagram of the LED, and Fig. 4 is a conventional technology. This is an LED temperature correction circuit. 1... Signal generator, 2... LED, 3... Thermistor, 4... Differential amplifier, 4C... Reference power supply,
5...Photocoupler, 5A...LED, 5B...
CdS-Se...Resistor, 6...LED drive amplifier, 6A, 6B...Amplifier, 7...LED drive amplifier, 7A, 7B...Amplifier, 8A to 8E...Resistor.
Claims (1)
続し、基準電源４Ｃの電圧を第２の入力端子４Ｂ
に接続する差動増幅回路４と、 第１のＬＥＤ５ＡとＣｄＳ−Ｓｅ抵抗器５Ｂを
内蔵し、第１のＬＥＤ５Ａの光出力でＣｄＳ−Ｓ
ｅ抵抗器５Ｂの抵抗値が変化するフオトカプラ５
と、 信号発生器１の出力を入力に接続し、フオトカ
プラ５内の第１のＬＥＤ５Ａを駆動する第１のＬ
ＥＤ駆動回路６と、 差動増幅器４の出力に接続され、フオトカプラ
５内のＣｄＳ−Ｓｅ抵抗器５Ｂと並列に接続され
るサーミスタ３と、 ＣｄＳ−Ｓｅ抵抗器５Ｂとサーミスタ３の並列
回路を入力に接続し、第２のＬＥＤ２を駆動する
第２のＬＥＤ駆動回路７とを備え、 第２のＬＥＤ２の温度補正をすることを特徴と
するＬＥＤの温度補正回路。[Claims for Utility Model Registration] A signal generator 1 that generates an optical output setting signal; the output of the signal generator 1 is connected to a first input terminal 4A, and the voltage of a reference power source 4C is connected to a second input terminal 4B.
It has a built-in differential amplifier circuit 4, a first LED 5A and a CdS-Se resistor 5B connected to the
e Photocoupler 5 in which the resistance value of resistor 5B changes
and a first L which connects the output of the signal generator 1 to its input and drives the first LED 5A in the photocoupler 5.
The ED drive circuit 6, the thermistor 3 connected to the output of the differential amplifier 4 and connected in parallel with the CdS-Se resistor 5B in the photocoupler 5, and the parallel circuit of the CdS-Se resistor 5B and thermistor 3 are input. An LED temperature correction circuit comprising: a second LED drive circuit 7 connected to the second LED 2 to drive the second LED 2, and correcting the temperature of the second LED 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989138204U JPH08766Y2 (en) | 1989-11-29 | 1989-11-29 | LED temperature correction circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989138204U JPH08766Y2 (en) | 1989-11-29 | 1989-11-29 | LED temperature correction circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0377465U true JPH0377465U (en) | 1991-08-05 |
| JPH08766Y2 JPH08766Y2 (en) | 1996-01-10 |
Family
ID=31685319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989138204U Expired - Lifetime JPH08766Y2 (en) | 1989-11-29 | 1989-11-29 | LED temperature correction circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08766Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230051966A (en) * | 2021-10-12 | 2023-04-19 | 강성일 | Waterproof device of pump container |
-
1989
- 1989-11-29 JP JP1989138204U patent/JPH08766Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230051966A (en) * | 2021-10-12 | 2023-04-19 | 강성일 | Waterproof device of pump container |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08766Y2 (en) | 1996-01-10 |
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