JPS60130657U - photo transistor - Google Patents
photo transistorInfo
- Publication number
- JPS60130657U JPS60130657U JP1727584U JP1727584U JPS60130657U JP S60130657 U JPS60130657 U JP S60130657U JP 1727584 U JP1727584 U JP 1727584U JP 1727584 U JP1727584 U JP 1727584U JP S60130657 U JPS60130657 U JP S60130657U
- Authority
- JP
- Japan
- Prior art keywords
- diode
- phototransistor
- photo transistor
- output transistor
- transistor
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のダーリントン型フォトトランジスタの例
を示す回路図、第２図は従来の他のダーリントン型フォ
トトランジスタの例を示す回路図、第３図は本考案によ
るダーリント型フォトトランジスタの実施例を示す回路
図、第４図は集積化した場合の構造例を示す断面図であ
る。
Ｑｌ・・・入カフオドトランジスタ、Ｑ２・・・出力ト
ランジスタ、Ｄ・・・ダイオード、ＶＯ・・・出力電圧
、Ｖｃｃ・・・電源電圧。Fig. 1 is a circuit diagram showing an example of a conventional Darlington phototransistor, Fig. 2 is a circuit diagram showing an example of another conventional Darlington phototransistor, and Fig. 3 is an example of a Darlington phototransistor according to the present invention. FIG. 4 is a cross-sectional view showing an example of the structure when integrated. Ql...Input transistor, Q2...Output transistor, D...Diode, VO...Output voltage, Vcc...Power supply voltage.
Claims (1)
がダーリントン接続されたフォトトランジスタにおいて
、前記出力トランジスタのベース・エミッタ間順方向電
圧よりも小さい順方向電圧を有するダイオードのアノー
ドを前記出力トランジスタのベースに、かつ、カソード
をコレクタに接続してなることを特徴とするフォトトラ
□ ンジスタ。、 （２） 実用新案登録請求の範囲第１項記載のフォト
トランジスタにおいて、前記ダイオードはショットキー
、バリア、ダイオードであることを特徴とするフォトト
ランジスタ。[Claims for Utility Model Registration] (1) In a phototransistor in which an input transistor and an output transistor are connected in Darlington, a diode having a forward voltage smaller than a base-emitter forward voltage of the output transistor; A phototransistor characterized in that the anode is connected to the base of the output transistor, and the cathode is connected to the collector. (2) Utility Model Registration The phototransistor according to claim 1, wherein the diode is a Schottky, barrier, or diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1727584U JPS60130657U (en) | 1984-02-09 | 1984-02-09 | photo transistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1727584U JPS60130657U (en) | 1984-02-09 | 1984-02-09 | photo transistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60130657U true JPS60130657U (en) | 1985-09-02 |
Family
ID=30504827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1727584U Pending JPS60130657U (en) | 1984-02-09 | 1984-02-09 | photo transistor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60130657U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5436168A (en) * | 1977-08-23 | 1979-03-16 | Fairchild Camera Instr Co | Nonnsaturated clamper |
-
1984
- 1984-02-09 JP JP1727584U patent/JPS60130657U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5436168A (en) * | 1977-08-23 | 1979-03-16 | Fairchild Camera Instr Co | Nonnsaturated clamper |
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