JPS6371557U - - Google Patents
Info
- Publication number
- JPS6371557U JPS6371557U JP1986165784U JP16578486U JPS6371557U JP S6371557 U JPS6371557 U JP S6371557U JP 1986165784 U JP1986165784 U JP 1986165784U JP 16578486 U JP16578486 U JP 16578486U JP S6371557 U JPS6371557 U JP S6371557U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- light emitting
- series circuit
- emitting diode
- diode drive
- 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 2
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Power Conversion In General (AREA)
Description
第１図は本考案の一実施例を示す構成図、第２
図は従来装置の構成図である。
１１〜１ｎ……光サイリスタ、２−１〜２−ｎ
……発光ダイオード、３……インピーダンス回路
、４……駆動トランジスタ、５……ベース回路、
６……直流電源、７……定電圧素子。
Fig. 1 is a configuration diagram showing one embodiment of the present invention;
The figure is a configuration diagram of a conventional device. 1 1 ~ 1 n ... optical thyristor, 2 -1 ~ 2 -n
...Light emitting diode, 3... Impedance circuit, 4... Drive transistor, 5... Base circuit,
6...DC power supply, 7... Constant voltage element.
Claims (1)
回路のカソード側に駆動用トランジスタのコレク
タが接続され、エミツタ側にインピーダンス回路
の一端を接続し、他端を直流電源の負極端子に接
続し、直流電源の正極端子と前記直列回路のアノ
ード側とを接続してなる発光ダイオード駆動回路
において、前記駆動用トランジスタのベースと前
記インピーダンス回路の他端との間に定電圧素子
を接続したことを特徴とする発光ダイオード駆動
回路。 A series circuit of multiple light emitting diodes, a collector of a driving transistor is connected to the cathode side of this series circuit, one end of an impedance circuit is connected to the emitter side, and the other end is connected to the negative terminal of a DC power supply. A light emitting diode drive circuit comprising a positive terminal connected to the anode side of the series circuit, characterized in that a constant voltage element is connected between the base of the drive transistor and the other end of the impedance circuit. Light emitting diode drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986165784U JPS6371557U (en) | 1986-10-30 | 1986-10-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986165784U JPS6371557U (en) | 1986-10-30 | 1986-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6371557U true JPS6371557U (en) | 1988-05-13 |
Family
ID=31096140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986165784U Pending JPS6371557U (en) | 1986-10-30 | 1986-10-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6371557U (en) |
-
1986
- 1986-10-30 JP JP1986165784U patent/JPS6371557U/ja active Pending