JPS6249261U - - Google Patents
Info
- Publication number
- JPS6249261U JPS6249261U JP1985139562U JP13956285U JPS6249261U JP S6249261 U JPS6249261 U JP S6249261U JP 1985139562 U JP1985139562 U JP 1985139562U JP 13956285 U JP13956285 U JP 13956285U JP S6249261 U JPS6249261 U JP S6249261U
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- transistor
- semiconductor integrated
- emitting element
- driving 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
- 239000004065 semiconductor Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Semiconductor Integrated Circuits (AREA)
Description
第１図は本考案の発光素子駆動回路のレイアウ
ト図、第２図は発光素子駆動回路の出力部分の回
路図、第３図は従来の発光素子駆動回路のレイア
ウト図である。
１〜１３……トランジスタ、１４，１５……出
力端子、１６……発光素子。
FIG. 1 is a layout diagram of a light emitting device driving circuit of the present invention, FIG. 2 is a circuit diagram of an output portion of the light emitting device driving circuit, and FIG. 3 is a layout diagram of a conventional light emitting device driving circuit. 1 to 13...transistor, 14, 15...output terminal, 16...light emitting element.
Claims (1)
により構成される電流切替形回路より成り、半導
体集積回路で実現される発光素子駆動回路におい
て、前記差動対トランジスタを少なくとも３個以
上に分割し、分割された各トランジスタを半導体
集積回路のほぼ円周上に配置したことを特徴とす
る発光素子駆動回路。 In a light emitting element driving circuit which is connected to a light emitting element and is comprised of a current switching type circuit constituted by a differential transistor, and which is realized by a semiconductor integrated circuit, the differential pair transistor is divided into at least three or more parts, 1. A light emitting device driving circuit characterized in that each transistor is arranged approximately on the circumference of a semiconductor integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985139562U JPS6249261U (en) | 1985-09-13 | 1985-09-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985139562U JPS6249261U (en) | 1985-09-13 | 1985-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6249261U true JPS6249261U (en) | 1987-03-26 |
Family
ID=31045585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985139562U Pending JPS6249261U (en) | 1985-09-13 | 1985-09-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6249261U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008053695A (en) * | 2006-07-25 | 2008-03-06 | Toshiba Lighting & Technology Corp | LIGHT EMITTING DIODE DRIVING DEVICE AND LIGHTING DEVICE |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4421783Y1 (en) * | 1966-01-12 | 1969-09-16 | ||
| JPS53132909A (en) * | 1977-04-26 | 1978-11-20 | Fujitsu Ltd | Driver circuit for luminous element |
-
1985
- 1985-09-13 JP JP1985139562U patent/JPS6249261U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4421783Y1 (en) * | 1966-01-12 | 1969-09-16 | ||
| JPS53132909A (en) * | 1977-04-26 | 1978-11-20 | Fujitsu Ltd | Driver circuit for luminous element |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008053695A (en) * | 2006-07-25 | 2008-03-06 | Toshiba Lighting & Technology Corp | LIGHT EMITTING DIODE DRIVING DEVICE AND LIGHTING DEVICE |