JPS6178454U - - Google Patents
Info
- Publication number
- JPS6178454U JPS6178454U JP1984163580U JP16358084U JPS6178454U JP S6178454 U JPS6178454 U JP S6178454U JP 1984163580 U JP1984163580 U JP 1984163580U JP 16358084 U JP16358084 U JP 16358084U JP S6178454 U JPS6178454 U JP S6178454U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- switch circuit
- drive current
- differential switch
- field effect
- 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
- 239000004065 semiconductor Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims 3
- 230000005540 biological transmission Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Optical Communication System (AREA)
Description
第1図は本考案実施例回路図。第2図は半導体
発光素子の特性図。第3図は従来例の駆動回路の
構成図。第4図は電界効果トランジスタの特性図
。第5図は定電流回路の構成図。
FIG. 1 is a circuit diagram of an embodiment of the present invention. FIG. 2 is a characteristic diagram of a semiconductor light emitting device. FIG. 3 is a configuration diagram of a conventional drive circuit. Figure 4 is a characteristic diagram of a field effect transistor. FIG. 5 is a configuration diagram of a constant current circuit.
Claims (1)
と、 この駆動電流の通路を変調信号に応じて制御す
る駆動回路と を備えた光送信回路において、 トランジスタ対により構成され、入力端子に変
調信号が接続された差動スイツチ回路と、 この差動スイツチ回路に電源電圧を供給する定
電圧回路と、 この差動スイツチ回路の共通電位側に接続され
た定電流回路と を備え、 上記駆動回路は電界効果トランジスタであつて
、その電界効果トランジスタのドレインおよびソ
ース電極が上記駆動電流の通路に挿入され、 その電界効果トランジスタのゲート電極が上記
差動スイツチ回路の出力端子に接続された ことを特徴とする光送信回路。 (2) 差動スイツチ回路を構成するトランジスタ
はバイポーラトランジスタである実用新案登録請
求の範囲第(1)項に記載の光送信回路。[Claims for Utility Model Registration] (1) Optical transmission comprising a semiconductor light-emitting device, a power source that supplies a drive current to the semiconductor light-emitting device, and a drive circuit that controls the path of this drive current according to a modulation signal. In the circuit, there is a differential switch circuit consisting of a pair of transistors with a modulation signal connected to its input terminal, a constant voltage circuit that supplies a power supply voltage to this differential switch circuit, and a circuit on the common potential side of this differential switch circuit. and a constant current circuit connected thereto, wherein the drive circuit is a field effect transistor, the drain and source electrodes of the field effect transistor are inserted into the drive current path, and the gate electrode of the field effect transistor is connected to the drive current. An optical transmission circuit characterized in that it is connected to an output terminal of a dynamic switch circuit. (2) The optical transmitter circuit according to claim 1, wherein the transistors constituting the differential switch circuit are bipolar transistors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984163580U JPS6178454U (en) | 1984-10-29 | 1984-10-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984163580U JPS6178454U (en) | 1984-10-29 | 1984-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6178454U true JPS6178454U (en) | 1986-05-26 |
Family
ID=30721443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984163580U Pending JPS6178454U (en) | 1984-10-29 | 1984-10-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6178454U (en) |
-
1984
- 1984-10-29 JP JP1984163580U patent/JPS6178454U/ja active Pending
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