JPS6441321A - Dc two-wire switch - Google Patents

Dc two-wire switch

Info

Publication number
JPS6441321A
JPS6441321A JP19666087A JP19666087A JPS6441321A JP S6441321 A JPS6441321 A JP S6441321A JP 19666087 A JP19666087 A JP 19666087A JP 19666087 A JP19666087 A JP 19666087A JP S6441321 A JPS6441321 A JP S6441321A
Authority
JP
Japan
Prior art keywords
circuit
terminals
boosting
residual voltage
closed
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
JP19666087A
Other languages
Japanese (ja)
Inventor
Tadashi Furuta
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.)
Panasonic Industrial Devices SUNX Co Ltd
Original Assignee
Sunx Ltd
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 Sunx Ltd filed Critical Sunx Ltd
Priority to JP19666087A priority Critical patent/JPS6441321A/en
Publication of JPS6441321A publication Critical patent/JPS6441321A/en
Pending legal-status Critical Current

Links

Landscapes

  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To enhance the design performance of the titled circuit by providing a boosting circuit boosting a residual voltage caused between terminals when a switching circuit is closed to a lower limit driving voltage or above enough to normally activate a detecting circuit, thereby driving the detecting circuit by the output of the boosting circuit when the switching circuit is closed. CONSTITUTION:A residual voltage generated between terminals 18 and 20 when the terminals 18 and 20 are closed is boosted to a lower driving voltage or over by which an optical sensor 11 is acted normally by means of the boosting circuit 28 and supplied to the optical sensor 11. Thus, even when the residual voltage is suppressed low between the terminals 18 and 20 being in a closing state, the optical sensor 11 is driven sufficiently. Thus, the limiting condition in designing the circuit due to a residual voltage is eliminated, thereby the design performance of the circuit is improved.
JP19666087A 1987-08-06 1987-08-06 Dc two-wire switch Pending JPS6441321A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19666087A JPS6441321A (en) 1987-08-06 1987-08-06 Dc two-wire switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19666087A JPS6441321A (en) 1987-08-06 1987-08-06 Dc two-wire switch

Publications (1)

Publication Number Publication Date
JPS6441321A true JPS6441321A (en) 1989-02-13

Family

ID=16361475

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19666087A Pending JPS6441321A (en) 1987-08-06 1987-08-06 Dc two-wire switch

Country Status (1)

Country Link
JP (1) JPS6441321A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4114939A1 (en) * 1990-05-15 1991-11-21 Fuji Electric Co Ltd PHOTOELECTRIC SWITCH

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5799031A (en) * 1980-12-11 1982-06-19 Omron Tateisi Electronics Co Alternating current two-wire type contactless switch
JPS5828440B2 (en) * 1978-03-28 1983-06-15 ジヤツク・ケネス・イボツト fluid equipment
JPS59114718A (en) * 1982-12-21 1984-07-02 オムロン株式会社 2-wired electronic switch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5828440B2 (en) * 1978-03-28 1983-06-15 ジヤツク・ケネス・イボツト fluid equipment
JPS5799031A (en) * 1980-12-11 1982-06-19 Omron Tateisi Electronics Co Alternating current two-wire type contactless switch
JPS59114718A (en) * 1982-12-21 1984-07-02 オムロン株式会社 2-wired electronic switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4114939A1 (en) * 1990-05-15 1991-11-21 Fuji Electric Co Ltd PHOTOELECTRIC SWITCH
DE4114939C2 (en) * 1990-05-15 1997-02-20 Fuji Electric Co Ltd Photoelectric switch

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