JPS6066130U - Non-contact input circuit - Google Patents

Non-contact input circuit

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Publication number
JPS6066130U
JPS6066130U JP15768783U JP15768783U JPS6066130U JP S6066130 U JPS6066130 U JP S6066130U JP 15768783 U JP15768783 U JP 15768783U JP 15768783 U JP15768783 U JP 15768783U JP S6066130 U JPS6066130 U JP S6066130U
Authority
JP
Japan
Prior art keywords
input circuit
input
final stage
contact input
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
Application number
JP15768783U
Other languages
Japanese (ja)
Inventor
日笠　収
薫 安藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Omron Corp
Original Assignee
Omron Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Omron Corp filed Critical Omron Corp
Priority to JP15768783U priority Critical patent/JPS6066130U/en
Publication of JPS6066130U publication Critical patent/JPS6066130U/en
Pending legal-status Critical Current

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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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来の無接点入力回路の回路図であり、第２′
図はこの考案の実施例の無接点入力回路の回路図である
。 １−ダーリントン回路、４−ホトカプラ、ＴＲ２−最終
段トランジスタ、ＴＲ３−受光トランジスタ・Figure 1 is a circuit diagram of a conventional non-contact input circuit.
The figure is a circuit diagram of a non-contact input circuit according to an embodiment of this invention. 1 - Darlington circuit, 4 - Photocoupler, TR2 - final stage transistor, TR3 - light receiving transistor

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ダーリントン回路の最終段トランジスタを入力端子に直
接接続し、前記最終段トランジスタをオン、オフ制御す
ることによって入力レベルを規定する入力回路において
、前記入力端子にホトカプラを接続して、前記最終段ト
ランジスタで前記ホトカプラの受光トランジスタをオン
、オフ制御するとともに電源電圧と前記受光トランジス
タの飽和電圧および遮断電圧との関係で入力レベルを規
定することを特徴とする無接点入力回路。In an input circuit in which a final stage transistor of a Darlington circuit is directly connected to an input terminal and the input level is determined by controlling on/off of the final stage transistor, a photocoupler is connected to the input terminal and the final stage transistor is connected directly to the input terminal. A non-contact input circuit, characterized in that the photocoupler's light receiving transistor is controlled on and off, and the input level is defined based on the relationship between the power supply voltage and the saturation voltage and cutoff voltage of the light receiving transistor.
JP15768783U 1983-10-12 1983-10-12 Non-contact input circuit Pending JPS6066130U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15768783U JPS6066130U (en) 1983-10-12 1983-10-12 Non-contact input circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15768783U JPS6066130U (en) 1983-10-12 1983-10-12 Non-contact input circuit

Publications (1)

Publication Number Publication Date
JPS6066130U true JPS6066130U (en) 1985-05-10

Family

ID=30347584

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15768783U Pending JPS6066130U (en) 1983-10-12 1983-10-12 Non-contact input circuit

Country Status (1)

Country Link
JP (1) JPS6066130U (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5275164A (en) * 1975-12-18 1977-06-23 Toshiba Corp Level converter
JPS5523635A (en) * 1978-08-09 1980-02-20 Toshiba Corp Digital input circuit
JPS5539430A (en) * 1978-09-13 1980-03-19 Fujitsu Ltd Load driving circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5275164A (en) * 1975-12-18 1977-06-23 Toshiba Corp Level converter
JPS5523635A (en) * 1978-08-09 1980-02-20 Toshiba Corp Digital input circuit
JPS5539430A (en) * 1978-09-13 1980-03-19 Fujitsu Ltd Load driving circuit

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