JPS6460226A - Protective circuit for semiconductor element - Google Patents

Protective circuit for semiconductor element

Info

Publication number
JPS6460226A
JPS6460226A JP62215415A JP21541587A JPS6460226A JP S6460226 A JPS6460226 A JP S6460226A JP 62215415 A JP62215415 A JP 62215415A JP 21541587 A JP21541587 A JP 21541587A JP S6460226 A JPS6460226 A JP S6460226A
Authority
JP
Japan
Prior art keywords
unit
semiconductor element
protective circuit
superconducting
excess current
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
JP62215415A
Other languages
Japanese (ja)
Inventor
Takashi Waga
Kenji Koga
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.)
Hitachi Ltd
Hitachi Power Semiconductor Device Ltd
Original Assignee
Hitachi Ltd
Hitachi Haramachi Electronics 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 Hitachi Ltd, Hitachi Haramachi Electronics Ltd filed Critical Hitachi Ltd
Priority to JP62215415A priority Critical patent/JPS6460226A/en
Publication of JPS6460226A publication Critical patent/JPS6460226A/en
Pending 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
    • H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
    • H02H9/023—Current limitation using superconducting elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment

Abstract

PURPOSE:To set the generation loss of a protective circuit to be zero and enhance responding property to excess current, by connecting a superconducting unit in series, to a semiconductor element to be protected. CONSTITUTION:To a semiconductor element 2 for protecting from excess current, a superconducting unit 1 is contrived to be connected in series. In such a case, till the superconducting unit 1 exceeds a critical current density, a resistance value is set to be zero, and so power loss in a normal state can be avoided. Besides, when the unit 1 exceeds the critical current density, then the superconducting unit 1 is to immediately have the resistance value like a normally conducting unit, and so the excess current can be suppressed in good responding property.
JP62215415A 1987-08-31 1987-08-31 Protective circuit for semiconductor element Pending JPS6460226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62215415A JPS6460226A (en) 1987-08-31 1987-08-31 Protective circuit for semiconductor element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62215415A JPS6460226A (en) 1987-08-31 1987-08-31 Protective circuit for semiconductor element

Publications (1)

Publication Number Publication Date
JPS6460226A true JPS6460226A (en) 1989-03-07

Family

ID=16671952

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62215415A Pending JPS6460226A (en) 1987-08-31 1987-08-31 Protective circuit for semiconductor element

Country Status (1)

Country Link
JP (1) JPS6460226A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0241619A (en) * 1988-06-10 1990-02-09 Asea Brown Boveri Ab Fault current limiter
JPH0340839U (en) * 1989-08-28 1991-04-19
EP1168560A2 (en) * 2000-06-19 2002-01-02 Haldor Topsoe A/S High electrical power current limiter being useful in electrical power system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0241619A (en) * 1988-06-10 1990-02-09 Asea Brown Boveri Ab Fault current limiter
JPH0340839U (en) * 1989-08-28 1991-04-19
EP1168560A2 (en) * 2000-06-19 2002-01-02 Haldor Topsoe A/S High electrical power current limiter being useful in electrical power system

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