JPS61195427U - - Google Patents
Info
- Publication number
- JPS61195427U JPS61195427U JP6768385U JP6768385U JPS61195427U JP S61195427 U JPS61195427 U JP S61195427U JP 6768385 U JP6768385 U JP 6768385U JP 6768385 U JP6768385 U JP 6768385U JP S61195427 U JPS61195427 U JP S61195427U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- resistor
- circuit
- connection point
- series 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Control Of Combustion (AREA)
Description
第１図ないし第５図はそれぞれこの考案の一実
施例を示す電気回路図である。
１…直流電源、４…第１直列回路、５…フオト
トランジスタ、６…第２直列回路、７…順方向ダ
イオード、８…コンデンサ、９…スイツチング回
路、Ｒ１…第１抵抗、Ｒ２…第２抵抗、Ａ，Ｂ…
中間接続点。
1 to 5 are electrical circuit diagrams each showing an embodiment of this invention. DESCRIPTION OF SYMBOLS 1... DC power supply, 4... First series circuit, 5... Phototransistor, 6... Second series circuit, 7... Forward diode, 8... Capacitor, 9... Switching circuit, R1... First resistor, R2... Second resistor ,A,B...
Intermediate connection point.
Claims (1)
タまたはフオトダイオードの第１直列回路を接続
し、直流電源の一端と第１直列回路の中間接続点
との間に、第２抵抗と順方向ダイオードの第２直
列回路を、第２抵抗が直流電源の一端側、順方向
ダイオードが中間接続点側になるように接続し、
第２直列回路の中間接続点をコンデンサを介して
直流電源に接続するとともに、スイツチング回路
の入力端に接続し、このスイツチング回路の出力
端から検出出力を得ることを特徴とした光検出回
路。 A first series circuit of a first resistor and a phototransistor or a photodiode is connected to both ends of the DC power supply, and a second resistor and a first series circuit of a forward diode are connected between one end of the DC power supply and an intermediate connection point of the first series circuit. Connect the two series circuits so that the second resistor is on one end of the DC power supply and the forward diode is on the intermediate connection point,
A photodetection circuit characterized in that an intermediate connection point of a second series circuit is connected to a DC power supply via a capacitor, and is also connected to an input end of a switching circuit, and a detection output is obtained from an output end of the switching circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6768385U JPS61195427U (en) | 1985-05-07 | 1985-05-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6768385U JPS61195427U (en) | 1985-05-07 | 1985-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61195427U true JPS61195427U (en) | 1986-12-05 |
Family
ID=30601729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6768385U Pending JPS61195427U (en) | 1985-05-07 | 1985-05-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61195427U (en) |
-
1985
- 1985-05-07 JP JP6768385U patent/JPS61195427U/ja active Pending