JPS52118231A - Contact protecting circuit - Google Patents

Contact protecting circuit

Info

Publication number
JPS52118231A
JPS52118231A JP3449776A JP3449776A JPS52118231A JP S52118231 A JPS52118231 A JP S52118231A JP 3449776 A JP3449776 A JP 3449776A JP 3449776 A JP3449776 A JP 3449776A JP S52118231 A JPS52118231 A JP S52118231A
Authority
JP
Japan
Prior art keywords
protecting circuit
contact protecting
varistor
contact
leaving
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
JP3449776A
Other languages
Japanese (ja)
Inventor
Yasuo Kato
Shinichi Suzuki
Yutaka Suzuki
Takao Tezuka
Masao Umagami
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.)
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
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 Fujitsu Ltd, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP3449776A priority Critical patent/JPS52118231A/en
Publication of JPS52118231A publication Critical patent/JPS52118231A/en
Pending legal-status Critical Current

Links

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  • Keying Circuit Devices (AREA)
  • Relay Circuits (AREA)

Abstract

PURPOSE: To prevent deterioration leaving a varistor original function alone as is by providing a series circuit of a diode and a varistor in parallel with induction loads such as relays etc.
COPYRIGHT: (C)1977,JPO&Japio
JP3449776A 1976-03-31 1976-03-31 Contact protecting circuit Pending JPS52118231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3449776A JPS52118231A (en) 1976-03-31 1976-03-31 Contact protecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3449776A JPS52118231A (en) 1976-03-31 1976-03-31 Contact protecting circuit

Publications (1)

Publication Number Publication Date
JPS52118231A true JPS52118231A (en) 1977-10-04

Family

ID=12415876

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3449776A Pending JPS52118231A (en) 1976-03-31 1976-03-31 Contact protecting circuit

Country Status (1)

Country Link
JP (1) JPS52118231A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4312739Y1 (en) * 1965-06-24 1968-05-31

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4312739Y1 (en) * 1965-06-24 1968-05-31

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