JPS56114437A - Programmable switch circuit - Google Patents

Programmable switch circuit

Info

Publication number
JPS56114437A
JPS56114437A JP1637080A JP1637080A JPS56114437A JP S56114437 A JPS56114437 A JP S56114437A JP 1637080 A JP1637080 A JP 1637080A JP 1637080 A JP1637080 A JP 1637080A JP S56114437 A JPS56114437 A JP S56114437A
Authority
JP
Japan
Prior art keywords
switch circuit
terminals
cut
programmable switch
fet25
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
JP1637080A
Other languages
Japanese (ja)
Inventor
Susumu Okada
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1637080A priority Critical patent/JPS56114437A/en
Publication of JPS56114437A publication Critical patent/JPS56114437A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors

Abstract

PURPOSE:To obtain a selective circuit which has made its driving stage one stage, and makes no driving current flow after a fuse has been cut off, by utilizing the difference of different thresholds of two FET's. CONSTITUTION:In case when a fuse 21 is not cut off, if voltage of terminals 26, 27, value of resistors 28, 29, and threshold voltage of FET's 24, 25 are made V1, V2; R1, R2; VT1, VT2 and also VT2<R2(V1-V2)/(R1+R2)+V2< VT1 respectively, the FET24 is made off, the FET25 is made on, and the terminals 30, 31 are connected. In case when the fuxe 21 has been cut off, the FET24 is made on, the FET25 is made off, and the terminals 30, 32 are connected.
JP1637080A 1980-02-13 1980-02-13 Programmable switch circuit Pending JPS56114437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1637080A JPS56114437A (en) 1980-02-13 1980-02-13 Programmable switch circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1637080A JPS56114437A (en) 1980-02-13 1980-02-13 Programmable switch circuit

Publications (1)

Publication Number Publication Date
JPS56114437A true JPS56114437A (en) 1981-09-09

Family

ID=11914410

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1637080A Pending JPS56114437A (en) 1980-02-13 1980-02-13 Programmable switch circuit

Country Status (1)

Country Link
JP (1) JPS56114437A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6142133U (en) * 1984-08-22 1986-03-18 セコム株式会社 Non-contact power switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6142133U (en) * 1984-08-22 1986-03-18 セコム株式会社 Non-contact power switch

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