JPH02120938U - - Google Patents
Info
- Publication number
- JPH02120938U JPH02120938U JP3052389U JP3052389U JPH02120938U JP H02120938 U JPH02120938 U JP H02120938U JP 3052389 U JP3052389 U JP 3052389U JP 3052389 U JP3052389 U JP 3052389U JP H02120938 U JPH02120938 U JP H02120938U
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- field effect
- effect transistor
- gate
- drive 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
- 230000005669 field effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の発光素子駆動回路の実施例を
示す回路図、第２図は発光素子駆動回路の動作原
理を示す図である。
１……電界効果トランジスタ、２……レーザダ
イオード、３……トランジスタ、４……チヨーク
コイル、５……低周波アナログ信号、６〜８……
抵抗。
FIG. 1 is a circuit diagram showing an embodiment of the light emitting element driving circuit of the present invention, and FIG. 2 is a diagram showing the operating principle of the light emitting element driving circuit. 1... Field effect transistor, 2... Laser diode, 3... Transistor, 4... Chi York coil, 5... Low frequency analog signal, 6-8...
resistance.
Claims (1)
信号を入力し、ドレインに接続された発光素子を
駆動するソース接地形の発光素子駆動回路におい
て、前記電界効果トランジスタのゲートバイアス
電圧Ｖｇに低周波アナログ信号を重畳し、該電界
効果トランジスタのゲート・ソース間電圧Ｖｇｓ
を変調することを特徴とする発光素子駆動回路。 In a source-grounded light emitting device drive circuit that inputs a digital signal from the gate of a field effect transistor and drives a light emitting device connected to the drain, a low frequency analog signal is superimposed on the gate bias voltage V g of the field effect transistor. , the gate-source voltage V gs of the field effect transistor
A light emitting element drive circuit characterized by modulating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3052389U JPH02120938U (en) | 1989-03-16 | 1989-03-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3052389U JPH02120938U (en) | 1989-03-16 | 1989-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02120938U true JPH02120938U (en) | 1990-10-01 |
Family
ID=31255651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3052389U Pending JPH02120938U (en) | 1989-03-16 | 1989-03-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02120938U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007533275A (en) * | 2004-04-14 | 2007-11-15 | フィニサー コーポレイション | Out-of-band data communication between network transceivers |
-
1989
- 1989-03-16 JP JP3052389U patent/JPH02120938U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007533275A (en) * | 2004-04-14 | 2007-11-15 | フィニサー コーポレイション | Out-of-band data communication between network transceivers |
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