JPS5421536B2 - - Google Patents

Info

Publication number
JPS5421536B2
JPS5421536B2 JP8967972A JP8967972A JPS5421536B2 JP S5421536 B2 JPS5421536 B2 JP S5421536B2 JP 8967972 A JP8967972 A JP 8967972A JP 8967972 A JP8967972 A JP 8967972A JP S5421536 B2 JPS5421536 B2 JP S5421536B2
Authority
JP
Japan
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.)
Expired
Application number
JP8967972A
Other versions
JPS4836645A (ja
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 filed Critical
Publication of JPS4836645A publication Critical patent/JPS4836645A/ja
Publication of JPS5421536B2 publication Critical patent/JPS5421536B2/ja
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/008—Intrinsically safe circuits

Landscapes

  • Emergency Protection Circuit Devices (AREA)
JP8967972A 1971-09-10 1972-09-08 Expired JPS5421536B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17935571A 1971-09-10 1971-09-10

Publications (2)

Publication Number Publication Date
JPS4836645A JPS4836645A (ja) 1973-05-30
JPS5421536B2 true JPS5421536B2 (ja) 1979-07-31

Family

ID=22656238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8967972A Expired JPS5421536B2 (ja) 1971-09-10 1972-09-08

Country Status (8)

Country Link
US (1) US3684924A (ja)
JP (1) JPS5421536B2 (ja)
AU (1) AU466694B2 (ja)
BE (1) BE788539A (ja)
CA (1) CA1000356A (ja)
FR (1) FR2152786B1 (ja)
GB (1) GB1381035A (ja)
IT (1) IT967304B (ja)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818273A (en) * 1971-03-26 1974-06-18 Yokogawa Electric Works Ltd Barrier isolator device employing an overload protection circuit
US4016480A (en) * 1974-03-04 1977-04-05 Zenith Radio Corporation Dual function coupling system and method
US4034281A (en) * 1974-07-25 1977-07-05 Sanken Electric Company Limited Direct current power supply with a transistor chopper
US3973170A (en) * 1974-09-09 1976-08-03 Honeywell Inc. Intrinsic safety barrier
DE2457664C2 (de) * 1974-12-06 1985-04-04 Robert Bosch Gmbh, 7000 Stuttgart Elektrische Schaltungsanordnung zur Erzeugung einer stabilen Ausgangsspannung
US4004223A (en) * 1975-06-16 1977-01-18 Cohen Samuel G Audible resistance or voltage tester
FR2382810A1 (fr) * 1977-03-02 1978-09-29 Labo Cent Telecommunicat Circuit d'alimentation de ligne telephonique avec protection
US4190822A (en) * 1978-04-05 1980-02-26 Honeywell Inc. Current telemetering interface apparatus
JPS5581603A (en) * 1978-12-13 1980-06-19 Yoshida Kogyo Kk Box body attaching apparatus for slide fastener
GB2145858A (en) * 1983-08-27 1985-04-03 Hunslett Monitoring system
GB8712865D0 (en) * 1987-06-02 1987-07-08 Measurement Tech Ltd Safety barriers
GB8722679D0 (en) * 1987-09-26 1987-11-04 Measurement Tech Ltd Electrical safety barriers
GB2245439B (en) * 1987-09-26 1992-04-29 Measurement Tech Ltd Electrical safety barriers
US4954923A (en) * 1988-08-19 1990-09-04 Cooper Industries, Inc. Intrinsic safety module interface
US5144517A (en) * 1989-10-20 1992-09-01 Pepperl + Fuchs, Inc. Intrinsically safe barrier device
JP2504586B2 (ja) * 1989-10-31 1996-06-05 東芝マイクロエレクトロニクス株式会社 接地外れ保護回路を有する電子回路装置
US5010292A (en) * 1989-12-12 1991-04-23 North American Philips Corporation Voltage regulator with reduced semiconductor power dissipation
US5993623A (en) * 1996-09-24 1999-11-30 Rosemount Analytical Inc. Solid electrolyte gas analyzer with improved circuit and housing configuration
DE10249599B4 (de) * 2002-10-24 2007-12-27 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Sicherheitsschaltung für analoge Sensoren
US20050190513A1 (en) * 2004-03-01 2005-09-01 Omron Corporation Surge suppression circuit
US7855865B2 (en) * 2007-10-16 2010-12-21 Nokia Corporation Circuitry protection arrangement
GB201007688D0 (en) * 2010-05-10 2010-06-23 Kitchener Renato Variable biased active IEC61168-2 fieldbus power conditioner
US9343899B2 (en) 2013-10-03 2016-05-17 Fisher Controls International Llc Intrinsically safe voltage limiting shunt regulator circuit
CN104682334B (zh) * 2013-12-03 2018-09-28 深圳市海洋王照明工程有限公司 一种安全栅电路及灯具
CN103916012B (zh) * 2014-04-01 2016-09-28 江苏杰瑞科技集团有限责任公司 一种本质安全电源转换装置
US10749426B1 (en) 2019-04-11 2020-08-18 Graco Minnesota Inc. Trapezoidal power-supply barrier between hazardous and normal locations

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3527985A (en) * 1966-12-02 1970-09-08 Foxboro Co Electrical barrier device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3309542A (en) * 1963-10-31 1967-03-14 Cutler Hammer Inc Intrinsically safe switching systems
US3431486A (en) * 1966-10-28 1969-03-04 Motorola Inc Protection circuit including power dissipation limiting means
US3445679A (en) * 1966-12-15 1969-05-20 Square D Co Intrinsically safe electrical control system
US3571608A (en) * 1969-04-04 1971-03-23 Honeywell Inc Protective circuit
US3631264A (en) * 1970-02-11 1971-12-28 Sybron Corp Intrinsically safe electrical barrier system and improvements therein
US3581152A (en) * 1970-03-16 1971-05-25 Lloyd F Hunt Round protection and detecting for high voltage dc transmission system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3527985A (en) * 1966-12-02 1970-09-08 Foxboro Co Electrical barrier device

Also Published As

Publication number Publication date
JPS4836645A (ja) 1973-05-30
AU4563172A (en) 1974-02-21
FR2152786A1 (ja) 1973-04-27
AU466694B2 (en) 1975-11-06
GB1381035A (en) 1975-01-22
FR2152786B1 (ja) 1977-03-04
IT967304B (it) 1974-02-28
CA1000356A (en) 1976-11-23
US3684924A (en) 1972-08-15
BE788539A (fr) 1973-03-08

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