JPH0463161U - - Google Patents
Info
- Publication number
- JPH0463161U JPH0463161U JP10459090U JP10459090U JPH0463161U JP H0463161 U JPH0463161 U JP H0463161U JP 10459090 U JP10459090 U JP 10459090U JP 10459090 U JP10459090 U JP 10459090U JP H0463161 U JPH0463161 U JP H0463161U
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- emitting diode
- control device
- drive circuit
- utility
- 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 3
Landscapes
- Audible And Visible Signals (AREA)
Description
第１図は、本考案の一実施例を示す回路図、第
２図は、同実施例及び従来装置の特性を示す説明
図、第３図は、従来発光ダイオードの輝度制御装
置を示す回路図である。
２……発光ダイオード、３……駆動回路。
Fig. 1 is a circuit diagram showing an embodiment of the present invention, Fig. 2 is an explanatory diagram showing the characteristics of the same embodiment and a conventional device, and Fig. 3 is a circuit diagram showing a conventional luminance control device for a light emitting diode. It is. 2...Light emitting diode, 3...Drive circuit.
Claims (1)
比を、複数段階に設定し得る駆動回路が設けられ
たことを特徴とする発光ダイオードの輝度制御装
置。 1. A brightness control device for a light emitting diode, comprising a drive circuit that can set a duty ratio of a current applied to the light emitting diode in multiple stages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10459090U JPH0463161U (en) | 1990-10-04 | 1990-10-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10459090U JPH0463161U (en) | 1990-10-04 | 1990-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0463161U true JPH0463161U (en) | 1992-05-29 |
Family
ID=31849933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10459090U Pending JPH0463161U (en) | 1990-10-04 | 1990-10-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0463161U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005346027A (en) * | 2004-05-31 | 2005-12-15 | Samsung Electro Mech Co Ltd | LED controller for camera flash |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5632468B2 (en) * | 1978-09-04 | 1981-07-28 | ||
| JPH02247688A (en) * | 1989-03-20 | 1990-10-03 | Yokogawa Electric Corp | Luminance control circuit for led |
-
1990
- 1990-10-04 JP JP10459090U patent/JPH0463161U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5632468B2 (en) * | 1978-09-04 | 1981-07-28 | ||
| JPH02247688A (en) * | 1989-03-20 | 1990-10-03 | Yokogawa Electric Corp | Luminance control circuit for led |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005346027A (en) * | 2004-05-31 | 2005-12-15 | Samsung Electro Mech Co Ltd | LED controller for camera flash |
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