FI68488C - Spaenningsstyrt transientskydd - Google Patents

Spaenningsstyrt transientskydd Download PDF

Info

Publication number
FI68488C
FI68488C FI822848A FI822848A FI68488C FI 68488 C FI68488 C FI 68488C FI 822848 A FI822848 A FI 822848A FI 822848 A FI822848 A FI 822848A FI 68488 C FI68488 C FI 68488C
Authority
FI
Finland
Prior art keywords
voltage
circuit
current path
thyristor
negative
Prior art date
Application number
FI822848A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI68488B (fi
FI822848L (fi
FI822848A0 (fi
Inventor
Lars Erik Hammarberg
Royne Gunnar Hjortendal
Walter Ghisler
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of FI822848L publication Critical patent/FI822848L/fi
Publication of FI822848A0 publication Critical patent/FI822848A0/fi
Publication of FI68488B publication Critical patent/FI68488B/sv
Application granted granted Critical
Publication of FI68488C publication Critical patent/FI68488C/sv

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

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Protection Of Static Devices (AREA)
  • Dc-Dc Converters (AREA)
FI822848A 1980-12-23 1982-08-16 Spaenningsstyrt transientskydd FI68488C (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE8009142A SE426002B (sv) 1980-12-23 1980-12-23 Anordning for skydd av en krets i en telekommunikationsutrustning mot overspenningar
SE8009142 1980-12-23
PCT/SE1981/000392 WO1982002287A1 (en) 1980-12-23 1981-12-23 Voltage controlled transient protection unit
SE8100392 1981-12-23

Publications (4)

Publication Number Publication Date
FI822848L FI822848L (fi) 1982-08-16
FI822848A0 FI822848A0 (fi) 1982-08-16
FI68488B FI68488B (fi) 1985-05-31
FI68488C true FI68488C (fi) 1985-09-10

Family

ID=20342580

Family Applications (1)

Application Number Title Priority Date Filing Date
FI822848A FI68488C (fi) 1980-12-23 1982-08-16 Spaenningsstyrt transientskydd

Country Status (11)

Country Link
US (1) US4456940A (de)
EP (1) EP0067839B1 (de)
JP (1) JPH0421418B2 (de)
AU (1) AU547598B2 (de)
BR (1) BR8109022A (de)
DK (1) DK163549C (de)
FI (1) FI68488C (de)
HU (1) HU186466B (de)
SE (1) SE426002B (de)
SU (1) SU1258339A3 (de)
WO (1) WO1982002287A1 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61150617A (ja) * 1984-12-24 1986-07-09 日本電信電話株式会社 サ−ジ防護回路
US4644437A (en) * 1985-11-01 1987-02-17 At&T Bell Laboratories Telephone subscriber loop overvoltage protection integrated circuit
US4715058A (en) * 1986-04-23 1987-12-22 Siemens Aktiengesellschaft Protective circuit for the overvoltage protection of a subscriber line interconnect circuit
JPH01502953A (ja) * 1986-04-30 1989-10-05 スタンダード・テレフオンズ・アンド・ケーブルズ・ピー・テイ・ワイ・リミテッド 電話保護回路
AR240631A1 (es) * 1986-06-06 1990-06-30 Siemens Ag Disposicion de circuito para proteger circuitos electronicos de interfase de circuitos de conexion de abonado de una red telefonica tiempo-multiplex digital
US5285100A (en) * 1988-07-22 1994-02-08 Texas Instruments Incorporated Semiconductor switching device
GB2225908B (en) * 1988-11-11 1993-01-13 Texas Instruments Ltd Improvements in or relating to overvoltage protection circuits
GB9021222D0 (en) * 1990-09-28 1990-11-14 Raychem Ltd Circuit protection device
FR2677821B1 (fr) * 1991-06-11 1993-10-08 Sgs Thomson Microelectronics Sa Composant de protection bidirectionnel.
US5337208A (en) * 1991-12-18 1994-08-09 Nec America, Inc. In-line AC current limiter
JPH05184062A (ja) * 1991-12-27 1993-07-23 Mitsubishi Materials Corp 通信回線用サージ吸収器及びこれを用いたサージ吸収回路
DE4326596C2 (de) * 1993-08-07 1997-07-17 Sel Alcatel Ag Schutzschaltungsanordnung für elektronische Teilnehmerschaltungen
FR2719721B1 (fr) * 1994-05-09 1996-09-20 Sgs Thomson Microelectronics Protection d'interface de lignes téléphoniques.
SE519189C2 (sv) * 1994-06-28 2003-01-28 Ericsson Telefon Ab L M Anordning för att skydda en abonnentlinjekrets från överspänningar
US5745323A (en) * 1995-06-30 1998-04-28 Analog Devices, Inc. Electrostatic discharge protection circuit for protecting CMOS transistors on integrated circuit processes
US5751525A (en) * 1996-01-05 1998-05-12 Analog Devices, Inc. EOS/ESD Protection circuit for an integrated circuit with operating/test voltages exceeding power supply rail voltages
US5917689A (en) * 1996-09-12 1999-06-29 Analog Devices, Inc. General purpose EOS/ESD protection circuit for bipolar-CMOS and CMOS integrated circuits
US5838146A (en) * 1996-11-12 1998-11-17 Analog Devices, Inc. Method and apparatus for providing ESD/EOS protection for IC power supply pins
US6061445A (en) * 1997-09-15 2000-05-09 Conexant Systems, Inc. Surge protection data access arrangement (DAA)
US6088446A (en) * 1998-05-06 2000-07-11 Actiontec Electronics, Inc. Protection circuit for use with a telephone appliance and methods of use
GB0030991D0 (en) * 2000-12-20 2001-01-31 Power Innovations Ltd Modem protection circuit
US6862162B2 (en) 2003-04-23 2005-03-01 Teccor Electronics, Lp Thyristor circuit providing overcurrent protection to a low impedance load
US7508643B2 (en) * 2006-10-27 2009-03-24 Manitowoc Crane Companies, Inc. System for overvoltage suppression for construction equipment
CA2865447C (en) * 2012-03-01 2019-03-12 Alstom Technology Ltd Control circuit
FR3039014B1 (fr) 2015-07-13 2019-06-14 Stmicroelectronics (Tours) Sas Protection de ligne telephonique contre les surtensions

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126452A (en) * 1960-03-18 1964-03-24 Arrangement in telephone instruments
US3246206A (en) * 1965-02-25 1966-04-12 Gen Electric Voltage surge protector
US3558830A (en) * 1969-04-09 1971-01-26 Communication Technology Inc Overvoltage transmission line protector
US3904931A (en) * 1973-08-03 1975-09-09 Rca Corp Overvoltage protection circuit
DE2536077A1 (de) * 1975-08-13 1977-03-03 Baum Elektrophysik Gmbh Schutzschaltung fuer fernmeldeanlagen gegen atmosphaerische stoerungen
DE2541942C3 (de) * 1975-09-19 1978-08-24 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltungsanordnung zum Schutz von Teilnehmerstationen mit Wähleinrichtungen in Fernmelde-, insbesondere Fernsprechanlagen gegen Überspannungen
DE2654419C2 (de) * 1976-12-01 1983-06-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltungsanordnung zur Spannungsbegrenzung
US4090227A (en) * 1977-03-29 1978-05-16 Bell Telephone Laboratories, Incorporated Transient-protected signal distribution circuit
SU680105A1 (ru) * 1977-06-02 1979-08-15 Московский Ордена Ленина И Ордена Трудового Красного Знамени Институт Инженеров Железнодорожного Транспорта Устройство дл защиты от перенапр жений сети посто нного тока
SE414357B (sv) * 1978-08-17 1980-07-21 Asea Ab Overspenningsskydd for skydd av halvledarkomponenter av lageffekttyp
SU754563A1 (ru) * 1978-09-04 1980-08-07 Rizhskij G Elektrotech Устройство для защиты линии связи от1
JPS55117398A (en) * 1979-03-02 1980-09-09 Nec Corp Surge protecting system for subscriber circuit
JPS55166430A (en) * 1979-06-08 1980-12-25 Matsushita Electric Ind Co Ltd Surge absorber circuit

Also Published As

Publication number Publication date
FI68488B (fi) 1985-05-31
BR8109022A (pt) 1983-04-12
EP0067839B1 (de) 1985-02-13
DK163549C (da) 1992-08-31
FI822848L (fi) 1982-08-16
SU1258339A3 (ru) 1986-09-15
SE426002B (sv) 1982-11-29
JPS57502148A (de) 1982-12-02
HU186466B (en) 1985-08-28
DK374982A (da) 1982-08-20
WO1982002287A1 (en) 1982-07-08
DK163549B (da) 1992-03-09
EP0067839A1 (de) 1982-12-29
FI822848A0 (fi) 1982-08-16
AU547598B2 (en) 1985-10-24
SE8009142L (sv) 1982-06-24
AU7934082A (en) 1982-07-20
US4456940A (en) 1984-06-26
JPH0421418B2 (de) 1992-04-10

Similar Documents

Publication Publication Date Title
FI68488C (fi) Spaenningsstyrt transientskydd
US4849846A (en) Telephone protection circuit
EP0349477B1 (de) Halbleiterüberspannungsschutzschaltung
US4203006A (en) Direct access coupler
US4377832A (en) Voltage transient suppressor circuit
US5003588A (en) Circuit arrangement for protecting electronic interface circuit of subscriber line circuits
US5631797A (en) Overvoltage protector
US6298134B1 (en) System for protecting telecommunications equipment from transient voltages
US7375942B1 (en) Flexible secondary overcurrent protection
US4727571A (en) Circuit for surge voltage protection in electronic telephone stations
CA1330451C (en) Solid state overcurrent protection device
CA1307315C (en) Telephone protection circuit
US4947426A (en) Telephone protection circuit
RU2124274C1 (ru) Коммутирующее защитное устройство для электронных абонентских схем
EP0260839A2 (de) Schutzanordnungen für Nachrichtenleitungen
CA1223992A (en) Transient resistant key operated pulse generating calling device circuit
CN1130007A (zh) 用户线接口电路的过电压保护设备
AU601737B2 (en) Telephone protection circuit
SU881931A2 (ru) Устройство дл защиты линии св зи от перенапр жени
SE422861B (sv) Snabbdifferentialskyddsarrangemang
RU21316U1 (ru) Устройство защиты от перенапряжений телекоммуникационного оборудования
JPH1141798A (ja) 雷防護アダプタ
SU955350A1 (ru) Устройство дл защиты линии св зи от перенапр жени
GB2315634A (en) Device for protecting a telecommunications apparatus
JPH049017B2 (de)

Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: OY L M ERICSSON AB