JPS6054986U - Blocker detection circuit - Google Patents
Blocker detection circuitInfo
- Publication number
- JPS6054986U JPS6054986U JP14699583U JP14699583U JPS6054986U JP S6054986 U JPS6054986 U JP S6054986U JP 14699583 U JP14699583 U JP 14699583U JP 14699583 U JP14699583 U JP 14699583U JP S6054986 U JPS6054986 U JP S6054986U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- voltage level
- emitting element
- light emitting
- light
- 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.)
- Granted
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図は従来の遮断物検出回路を示す回路図、第２図は
本考案の第１の実施例を示す回路図、第３図及び第４図
は同実施例を説明するための波形図、第５図及び第６図
は本考案の第２及び第３の実施例を示す回路図である。
ＬＥＤ２・・・発光素子、Ｐｔ２・・・受光素子、Ｍｌ
・・・電圧レベル記憶回路、ＲＥＩ・・・レベル設定回
路、ＩＣ２・・・シュミット型の集積回路。Fig. 1 is a circuit diagram showing a conventional blocking object detection circuit, Fig. 2 is a circuit diagram showing a first embodiment of the present invention, and Figs. 3 and 4 are waveform diagrams for explaining the same embodiment. , FIG. 5 and FIG. 6 are circuit diagrams showing second and third embodiments of the present invention. LED2...light emitting element, Pt2...light receiving element, Ml
... Voltage level storage circuit, REI... Level setting circuit, IC2... Schmitt type integrated circuit.
Claims (1)
断物の存在を検出するようになした遮断物検出回路にお
いて、上記発光素子からの光を受光し電流に変換する受
光素子と、この受光素子と上記発光素子との間が遮断さ
れていないときの上記受光素子の電流によって得られる
電圧を記憶する電圧レベル記憶回路と、この電圧レベル
記憶回路の出力電圧を分割して所定の電圧レベルを作る
レベル設定回路と、このレベル設定回路で作った電圧レ
ベルと、上記受光素子の電流によって得られる電圧とを
比較する比較回路とを有してなる遮断物検出回路。The blocking object detection circuit detects the presence of the blocking object when the blocking object blocks the light from the light emitting element, and the light receiving element receives the light from the light emitting element and converts it into electric current. a voltage level storage circuit that stores the voltage obtained by the current of the light receiving element when the connection between the light emitting element and the light emitting element is not interrupted; and a voltage level storage circuit that divides the output voltage of the voltage level storage circuit to create a predetermined voltage level. An obstruction detection circuit comprising a level setting circuit and a comparison circuit that compares a voltage level created by the level setting circuit with a voltage obtained by the current of the light receiving element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14699583U JPS6054986U (en) | 1983-09-22 | 1983-09-22 | Blocker detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14699583U JPS6054986U (en) | 1983-09-22 | 1983-09-22 | Blocker detection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6054986U true JPS6054986U (en) | 1985-04-17 |
| JPH0448551Y2 JPH0448551Y2 (en) | 1992-11-16 |
Family
ID=30327017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14699583U Granted JPS6054986U (en) | 1983-09-22 | 1983-09-22 | Blocker detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6054986U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5255652A (en) * | 1975-11-01 | 1977-05-07 | Hitachi Ltd | System for detecting object by light |
| JPS53114310A (en) * | 1977-03-16 | 1978-10-05 | Toshiba Corp | Paper leaf detector |
-
1983
- 1983-09-22 JP JP14699583U patent/JPS6054986U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5255652A (en) * | 1975-11-01 | 1977-05-07 | Hitachi Ltd | System for detecting object by light |
| JPS53114310A (en) * | 1977-03-16 | 1978-10-05 | Toshiba Corp | Paper leaf detector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0448551Y2 (en) | 1992-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6118636U (en) | Waveform shaping circuit device | |
| JPS6054986U (en) | Blocker detection circuit | |
| JPS58182448U (en) | Light emitting element drive circuit | |
| JPS59183675U (en) | Light receiving element level down detection device | |
| JPS58123845U (en) | Digital original detection circuit | |
| JPS5851740U (en) | day fibrillator | |
| JPS5811331U (en) | signal discrimination device | |
| JPS60173079U (en) | Simple voltage detection circuit | |
| JPS60131999U (en) | lighting circuit | |
| JPS5841084U (en) | electronic automatic flasher | |
| JPS58185156U (en) | electric water heater | |
| JPS5819540U (en) | timed circuit | |
| JPS5866364U (en) | AC input detection circuit | |
| JPS59147389U (en) | speaker device | |
| JPS5891173U (en) | Peak level detection circuit | |
| JPS60109188U (en) | Automatic reset type smoke detector | |
| JPS59191683U (en) | alarm device | |
| JPS60169587U (en) | sensor circuit | |
| JPS59124371U (en) | Loose contact checker | |
| JPS58175415U (en) | sensor circuit | |
| JPS60184333U (en) | Photoelectric detection circuit | |
| JPS6065627U (en) | multi-point recorder | |
| JPS5988797U (en) | photoelectric smoke detector | |
| JPS5934443U (en) | protection circuit | |
| JPS59106249U (en) | FM stereo auto hysteresis circuit |