JPS5489410A - Magnetism holding-type relay selection system - Google Patents

Magnetism holding-type relay selection system

Info

Publication number
JPS5489410A
JPS5489410A JP16078977A JP16078977A JPS5489410A JP S5489410 A JPS5489410 A JP S5489410A JP 16078977 A JP16078977 A JP 16078977A JP 16078977 A JP16078977 A JP 16078977A JP S5489410 A JPS5489410 A JP S5489410A
Authority
JP
Japan
Prior art keywords
relay
current
relays
magnetism holding
route
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
JP16078977A
Other languages
Japanese (ja)
Inventor
Yasuhiko Miwata
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 JP16078977A priority Critical patent/JPS5489410A/en
Publication of JPS5489410A publication Critical patent/JPS5489410A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
    • H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)

Abstract

PURPOSE:To reduce the number of selected leads to simplify a circuit by arranging circuits, which are obtained by connecting non-polarized constant-voltage elements in series to magnetism holding-type relays, in a matrix. CONSTITUTION:In a 3X3 matrix constitution of magnetism holding relays SO to S8 and Zener diodes ZDOO to O8 and ZD10 to 18 which are connected in series to these relays respectively, when relay SO is operated, contacts xO and yO are closed to operate the relay by the current from a negative power source; and when the relay is released, contact trf is switched to release the relay by the current which is caused to pass through R from a positive power source. At this time, -EV(+EV R) xO S1 ZDO1 ZD11 ZD14 ZDO4 S4 S3 ZDO3 ZD13 yO earth is possible as circulation, and the current passes always through Zener diodes ZD in this route. However, three of them have a forward direction, so that the current may be prevented from flowing to this route to prevent malfunction by setting the sum of breakdown voltages over EV in respect to three residual ZD.
JP16078977A 1977-12-26 1977-12-26 Magnetism holding-type relay selection system Pending JPS5489410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16078977A JPS5489410A (en) 1977-12-26 1977-12-26 Magnetism holding-type relay selection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16078977A JPS5489410A (en) 1977-12-26 1977-12-26 Magnetism holding-type relay selection system

Publications (1)

Publication Number Publication Date
JPS5489410A true JPS5489410A (en) 1979-07-16

Family

ID=15722478

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16078977A Pending JPS5489410A (en) 1977-12-26 1977-12-26 Magnetism holding-type relay selection system

Country Status (1)

Country Link
JP (1) JPS5489410A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9500608A (en) * 1995-03-30 1996-11-01 Robert Jan Verheul Matrix network and electrical network element therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9500608A (en) * 1995-03-30 1996-11-01 Robert Jan Verheul Matrix network and electrical network element therefor

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