JPS60133652U - photo coupler - Google Patents

photo coupler

Info

Publication number
JPS60133652U
JPS60133652U JP2033284U JP2033284U JPS60133652U JP S60133652 U JPS60133652 U JP S60133652U JP 2033284 U JP2033284 U JP 2033284U JP 2033284 U JP2033284 U JP 2033284U JP S60133652 U JPS60133652 U JP S60133652U
Authority
JP
Japan
Prior art keywords
light emitting
emitting diode
phototransistor
diode
photocoupler
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
JP2033284U
Other languages
Japanese (ja)
Inventor
細呂木　隆夫
Original Assignee
和泉電気株式会社
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 和泉電気株式会社 filed Critical 和泉電気株式会社
Priority to JP2033284U priority Critical patent/JPS60133652U/en
Publication of JPS60133652U publication Critical patent/JPS60133652U/en
Pending legal-status Critical Current

Links

Landscapes

  • Networks Using Active Elements (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Electronic Switches (AREA)

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 the drawing]

第１図は従来のフォトカプラの回路構成図、第２図はこ
の考案に係るフォトカプラの実施例を示す回路構成図で
、第３図は他の実施例を示す回路　。 構成図である。 ＬＤ・・・発光ダイオード、Ｒ・・・抵抗、・Ｄ□、Ｄ
２・・・ダイオード、ＰＴ・・・フォトトランジスタ、
ＺＤ・・・ツェナーダイオード、ａ、ｂ・・・入力端子
、ｃ、ｄ・・・出　−゛　力端子、Ｐｌ、Ｐ２・・・フ
ォトカプラ。FIG. 1 is a circuit configuration diagram of a conventional photocoupler, FIG. 2 is a circuit configuration diagram showing an embodiment of the photocoupler according to this invention, and FIG. 3 is a circuit diagram showing another embodiment. FIG. LD...Light emitting diode, R...Resistor, ・D□, D
2...Diode, PT...Phototransistor,
ZD...Zener diode, a, b...input terminal, c, d...output terminal, Pl, P2...photocoupler.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 発光ダイオードからなる発光部とフォトトラン゛　ジス
タからなる受光部とにより構成されたフォト　　カプラ
であって、前記発光部にて入力端子と発光ダイオード間
に電流制限抵抗を介挿接続するとともに逆電圧接続に対
する発光ダイオード保護用の、ダイオードを前記発光ダ
イオードに接続し、さらに前記受光部においてフォトト
ランジスタのコレクタ、エミッタ間にツェナーダイオー
ドを接続して１．前記発光ダイオードおよびフォトトラ
ンジスタを過！圧から保護するように構成したことを特
徴とするフォトカプラ。A photocoupler consisting of a light emitting part made of a light emitting diode and a light receiving part made of a phototransistor, in which a current limiting resistor is inserted and connected between the input terminal and the light emitting diode in the light emitting part, and a reverse voltage connection is made. 1. A diode is connected to the light emitting diode for protecting the light emitting diode against the light emitting diode, and a Zener diode is further connected between the collector and emitter of the phototransistor in the light receiving section. The light emitting diode and phototransistor pass! A photocoupler characterized in that it is configured to be protected from pressure.
JP2033284U 1984-02-14 1984-02-14 photo coupler Pending JPS60133652U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2033284U JPS60133652U (en) 1984-02-14 1984-02-14 photo coupler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2033284U JPS60133652U (en) 1984-02-14 1984-02-14 photo coupler

Publications (1)

Publication Number Publication Date
JPS60133652U true JPS60133652U (en) 1985-09-06

Family

ID=30510716

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2033284U Pending JPS60133652U (en) 1984-02-14 1984-02-14 photo coupler

Country Status (1)

Country Link
JP (1) JPS60133652U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63281515A (en) * 1987-05-13 1988-11-18 Hokuyo Automatic Co Free voltage input circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63281515A (en) * 1987-05-13 1988-11-18 Hokuyo Automatic Co Free voltage input circuit

Similar Documents

Publication Publication Date Title
JPS60133652U (en) photo coupler
JPS609356U (en) Ringing signal detection circuit
JPS59187241U (en) transistor output circuit
JPS60118878U (en) Reverse plug connection alarm device
JPS59161734U (en) Schmitt circuit
JPS5896341U (en) electronic switch circuit
JPS59161089U (en) Photo micro sensor
JPS59126319U (en) DC stabilized power supply circuit
JPS5894018U (en) Overcurrent detection circuit
JPS59138391U (en) protection device
JPS59195573U (en) Overcurrent detection circuit
JPS59132256U (en) Amplifier switching circuit
JPS60181676U (en) Window comparator circuit
JPS58151853U (en) overvoltage detector
JPS60103956U (en) Receiving circuit misconnection monitoring/protection circuit for current loop transmission
JPS6142614U (en) Overload detection circuit
JPS6042970U (en) current detection circuit
JPS60127024U (en) current limit circuit
JPS60180336U (en) Tape end detection circuit
JPS58151852U (en) overcurrent detector
JPS586444U (en) Input/output isolated DC signal transmission circuit
JPS6135421U (en) negative feedback amplifier
JPS59174611U (en) Constant voltage power supply circuit
JPS58150332U (en) Surge voltage blanking circuit
JPS5843722U (en) Operation switch assembly with display function