GB2111771B - Surge protection circuits - Google Patents

Surge protection circuits

Info

Publication number
GB2111771B
GB2111771B GB08138001A GB8138001A GB2111771B GB 2111771 B GB2111771 B GB 2111771B GB 08138001 A GB08138001 A GB 08138001A GB 8138001 A GB8138001 A GB 8138001A GB 2111771 B GB2111771 B GB 2111771B
Authority
GB
United Kingdom
Prior art keywords
surge protection
protection circuits
circuits
surge
protection
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.)
Expired
Application number
GB08138001A
Other versions
GB2111771A (en
Inventor
Om P Ahuja
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.)
North Hills Signal Processing Corp
Original Assignee
Porta Systems Corp
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
Priority to SE8107348A priority Critical patent/SE445409B/en
Priority to CA000392085A priority patent/CA1187929A/en
Priority to JP56203866A priority patent/JPS58107023A/en
Application filed by Porta Systems Corp filed Critical Porta Systems Corp
Priority to GB08138001A priority patent/GB2111771B/en
Priority to FR8124177A priority patent/FR2518838B1/en
Priority to DE19813151539 priority patent/DE3151539A1/en
Publication of GB2111771A publication Critical patent/GB2111771A/en
Application granted granted Critical
Publication of GB2111771B publication Critical patent/GB2111771B/en
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
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/74—Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults
    • H04M1/745—Protection devices or circuits for voltages surges on the line

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Structure Of Telephone Exchanges (AREA)
GB08138001A 1981-12-08 1981-12-16 Surge protection circuits Expired GB2111771B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE8107348A SE445409B (en) 1981-12-08 1981-12-08 CURRENT AND VOLTAGE PROTECTION CIRCUIT FOR USE IN CONNECTION WITH A PHONE CORD
CA000392085A CA1187929A (en) 1981-12-08 1981-12-11 Protective module for telephone logic circuits
JP56203866A JPS58107023A (en) 1981-12-08 1981-12-14 Telephone protecting system
GB08138001A GB2111771B (en) 1981-12-08 1981-12-16 Surge protection circuits
FR8124177A FR2518838B1 (en) 1981-12-08 1981-12-23 PROTECTION MODULE FOR TELEPHONY LOGIC CIRCUITS
DE19813151539 DE3151539A1 (en) 1981-12-08 1981-12-28 OVERVOLTAGE AND OVERCURRENT PROTECTION CIRCUIT FOR MESSAGE, IN PARTICULAR TELECOMMUNICATIONS

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
SE8107348A SE445409B (en) 1981-12-08 1981-12-08 CURRENT AND VOLTAGE PROTECTION CIRCUIT FOR USE IN CONNECTION WITH A PHONE CORD
CA000392085A CA1187929A (en) 1981-12-08 1981-12-11 Protective module for telephone logic circuits
JP56203866A JPS58107023A (en) 1981-12-08 1981-12-14 Telephone protecting system
GB08138001A GB2111771B (en) 1981-12-08 1981-12-16 Surge protection circuits
FR8124177A FR2518838B1 (en) 1981-12-08 1981-12-23 PROTECTION MODULE FOR TELEPHONY LOGIC CIRCUITS
DE19813151539 DE3151539A1 (en) 1981-12-08 1981-12-28 OVERVOLTAGE AND OVERCURRENT PROTECTION CIRCUIT FOR MESSAGE, IN PARTICULAR TELECOMMUNICATIONS

Publications (2)

Publication Number Publication Date
GB2111771A GB2111771A (en) 1983-07-06
GB2111771B true GB2111771B (en) 1985-04-03

Family

ID=27543326

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08138001A Expired GB2111771B (en) 1981-12-08 1981-12-16 Surge protection circuits

Country Status (6)

Country Link
JP (1) JPS58107023A (en)
CA (1) CA1187929A (en)
DE (1) DE3151539A1 (en)
FR (1) FR2518838B1 (en)
GB (1) GB2111771B (en)
SE (1) SE445409B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4538201A (en) * 1983-05-02 1985-08-27 International Standard Electric Corporation Surge protector
GB2160721B (en) * 1984-05-19 1987-08-19 Measurement Tech Ltd Protection of electrical/electronic equipment
GB8506270D0 (en) * 1985-03-11 1985-04-11 Dubilier Beswick Div Overvoltage protection arrangements
IT1215281B (en) * 1985-06-28 1990-01-31 Ates Componenti Elettron APPARATUS AND METHOD FOR PROTECTION FROM VOLTAGE / CURRENT TRANSITORS.
GB8802434D0 (en) * 1988-02-03 1988-03-02 British Telecomm Protector device
GB9021222D0 (en) * 1990-09-28 1990-11-14 Raychem Ltd Circuit protection device
KR0126541Y1 (en) * 1994-07-05 1998-10-15 정기호 Over-current protecting device with an earthing function

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743888A (en) * 1972-08-24 1973-07-03 Reliable Electric Co Line protector for a communication circuit
US3852539A (en) * 1973-09-10 1974-12-03 Porta Systems Corp Line surge protection device for telephone lines
US3890543A (en) * 1973-09-14 1975-06-17 Telecommunications Ind Low voltage surge protection network
DE2405671B2 (en) * 1974-02-06 1976-08-26 Siemens AG, 1000 Berlin und 8000 München CIRCUIT ARRANGEMENT FOR LIMITING OVERVOLTAGES
DE2912415A1 (en) * 1979-03-29 1980-10-09 Staco Werner Stauber Gmbh OVERVOLTAGE PROTECTION CIRCUIT
DE2917256A1 (en) * 1979-04-27 1980-11-06 Kraftwerk Union Ag OVERVOLTAGE PROTECTION DEVICE FOR ELECTRONIC DEVICES

Also Published As

Publication number Publication date
FR2518838A1 (en) 1983-06-24
JPS58107023A (en) 1983-06-25
GB2111771A (en) 1983-07-06
DE3151539A1 (en) 1983-07-07
CA1187929A (en) 1985-05-28
FR2518838B1 (en) 1985-10-18
SE445409B (en) 1986-06-16
SE8107348L (en) 1983-06-09

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19971216