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BR9001823A - Aparelho para protecao contra excesso de tensao de linhas telefonicas - Google Patents

Aparelho para protecao contra excesso de tensao de linhas telefonicas

Info

Publication number
BR9001823A
BR9001823A BR909001823A BR9001823A BR9001823A BR 9001823 A BR9001823 A BR 9001823A BR 909001823 A BR909001823 A BR 909001823A BR 9001823 A BR9001823 A BR 9001823A BR 9001823 A BR9001823 A BR 9001823A
Authority
BR
Brazil
Prior art keywords
voltage
lines
signals
clamping
voltage signals
Prior art date
Application number
BR909001823A
Other languages
English (en)
Inventor
Thomas Mccartney
Melvin Arthur Lace
Original Assignee
Oneac 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 claimed from US07/341,771 external-priority patent/US4941063A/en
Application filed by Oneac Corp filed Critical Oneac Corp
Publication of BR9001823A publication Critical patent/BR9001823A/pt

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
    • H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/18—Automatic or semi-automatic exchanges with means for reducing interference or noise; with means for reducing effects due to line faults with means for protecting lines
    • 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
    • H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Control Of Resistance Heating (AREA)
  • Protection Of Static Devices (AREA)
BR909001823A 1989-04-20 1990-04-18 Aparelho para protecao contra excesso de tensao de linhas telefonicas BR9001823A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/341,771 US4941063A (en) 1988-03-04 1989-04-20 Telephone lines overvoltage protection apparatus
US41292589A 1989-09-26 1989-09-26

Publications (1)

Publication Number Publication Date
BR9001823A true BR9001823A (pt) 1991-06-11

Family

ID=26992651

Family Applications (1)

Application Number Title Priority Date Filing Date
BR909001823A BR9001823A (pt) 1989-04-20 1990-04-18 Aparelho para protecao contra excesso de tensao de linhas telefonicas

Country Status (5)

Country Link
EP (1) EP0393333B1 (pt)
AT (1) ATE141457T1 (pt)
AU (1) AU629603B2 (pt)
BR (1) BR9001823A (pt)
DE (1) DE69028031T2 (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU643297B2 (en) * 1990-06-28 1993-11-11 Telstra Corporation Limited Electrical coupling device
NZ260129A (en) * 1993-04-08 1996-08-27 Alcatel Australia Controlling power dissipation in telephone semiconductor line switch
DE4402461A1 (de) * 1994-01-28 1995-08-03 Sel Alcatel Ag Schutzschaltung für eine Teilnehmeranschlußschaltung sowie Teilnehmeranschlußschaltung damit
GB2315634A (en) * 1996-07-18 1998-02-04 Bowthorpe Ind Ltd Device for protecting a telecommunications apparatus
US6298134B1 (en) * 1999-09-14 2001-10-02 Tyco Electronics Corporation System for protecting telecommunications equipment from transient voltages
US11239654B1 (en) * 2019-01-19 2022-02-01 Faraday Defense Corporation Surge protection device for complex transients
US11362083B2 (en) 2020-02-11 2022-06-14 Semtech Corporation TVS diode circuit with high energy dissipation and linear capacitance
US12253552B2 (en) 2021-10-01 2025-03-18 Faraday Defense Corporation Apparatus for detection of electrical disturbances resulting from electromagnetic pulse

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725613A (en) * 1971-02-25 1973-04-03 Rochester Tel Corp Apparatus for protecting and testing telephone network
US4389695A (en) * 1981-02-09 1983-06-21 Carpenter Jr Roy B Equipment for protecting electronic equipment and personnel against inadvertent occurrence of extended or transient high voltages and method
CA1231753A (en) * 1984-04-17 1988-01-19 Northern Telecom Limited Interactive overvoltage protection device
US4729005A (en) * 1985-04-29 1988-03-01 General Electric Company Method and apparatus for improved metal-insulator-semiconductor device operation
CA1233583A (en) * 1985-06-18 1988-03-01 Francis Y. Hung Protection arrangement for a telephone subscriber line interface circuit
WO1987006787A1 (en) * 1986-04-30 1987-11-05 Standard Telephones And Cables Pty. Limited Telephone protection circuit
CA1281768C (en) * 1986-09-09 1991-03-19 Francis Yun-Tai Hung Protection arrangements for communications lines
US4758920A (en) * 1987-03-02 1988-07-19 Oneac Corporation Telephone and data overvoltage protection apparatus

Also Published As

Publication number Publication date
ATE141457T1 (de) 1996-08-15
AU4891390A (en) 1990-11-08
EP0393333A3 (en) 1992-04-01
DE69028031D1 (de) 1996-09-19
DE69028031T2 (de) 1997-01-02
EP0393333A2 (en) 1990-10-24
EP0393333B1 (en) 1996-08-14
AU629603B2 (en) 1992-10-08

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Legal Events

Date Code Title Description
KD Notifcation of receipt (letter patent)
FG Letter patent granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 18/04/2005