JPS6122717A - 過電流保護回路 - Google Patents

過電流保護回路

Info

Publication number
JPS6122717A
JPS6122717A JP59140921A JP14092184A JPS6122717A JP S6122717 A JPS6122717 A JP S6122717A JP 59140921 A JP59140921 A JP 59140921A JP 14092184 A JP14092184 A JP 14092184A JP S6122717 A JPS6122717 A JP S6122717A
Authority
JP
Japan
Prior art keywords
transistor
circuit
overcurrent protection
overcurrent
current
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
JP59140921A
Other languages
English (en)
Japanese (ja)
Inventor
和弘 佐藤
森　弘好
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
Original Assignee
Fujitsu 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 filed Critical Fujitsu Ltd
Priority to JP59140921A priority Critical patent/JPS6122717A/ja
Priority to CA000485760A priority patent/CA1253915A/en
Priority to AU44426/85A priority patent/AU569798B2/en
Priority to US06/750,164 priority patent/US4661879A/en
Priority to DE8585108366T priority patent/DE3584541D1/de
Priority to KR8504842A priority patent/KR900001783B1/ko
Priority to EP85108366A priority patent/EP0167172B1/en
Publication of JPS6122717A publication Critical patent/JPS6122717A/ja
Priority to JP1991040040U priority patent/JPH0496191U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Interface Circuits In Exchanges (AREA)
JP59140921A 1984-07-05 1984-07-06 過電流保護回路 Pending JPS6122717A (ja)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP59140921A JPS6122717A (ja) 1984-07-06 1984-07-06 過電流保護回路
CA000485760A CA1253915A (en) 1984-07-05 1985-06-27 Overcurrent protection circuit
AU44426/85A AU569798B2 (en) 1984-07-05 1985-06-28 Overcurrent protection circuit
US06/750,164 US4661879A (en) 1984-07-05 1985-06-28 Overcurrent protection circuit for line circuits in a switching system
DE8585108366T DE3584541D1 (de) 1984-07-05 1985-07-05 Ueberstromschutzschaltung.
KR8504842A KR900001783B1 (en) 1984-07-05 1985-07-05 Overcurrent protecting circuit
EP85108366A EP0167172B1 (en) 1984-07-05 1985-07-05 Overcurrent protection circuit
JP1991040040U JPH0496191U (enExample) 1984-07-06 1991-05-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59140921A JPS6122717A (ja) 1984-07-06 1984-07-06 過電流保護回路

Publications (1)

Publication Number Publication Date
JPS6122717A true JPS6122717A (ja) 1986-01-31

Family

ID=15279910

Family Applications (2)

Application Number Title Priority Date Filing Date
JP59140921A Pending JPS6122717A (ja) 1984-07-05 1984-07-06 過電流保護回路
JP1991040040U Pending JPH0496191U (enExample) 1984-07-06 1991-05-30

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP1991040040U Pending JPH0496191U (enExample) 1984-07-06 1991-05-30

Country Status (1)

Country Link
JP (2) JPS6122717A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006135625A (ja) * 2004-11-05 2006-05-25 Aiphone Co Ltd インターホン装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4816145B1 (enExample) * 1970-02-07 1973-05-19
NL174420C (nl) * 1975-06-30 1984-06-01 Philips Nv Beveiligingsinrichting voor een telefoontoestel.
JPS5953012A (ja) * 1982-09-16 1984-03-27 富士通株式会社 過電流保護回路

Also Published As

Publication number Publication date
JPH0496191U (enExample) 1992-08-20

Similar Documents

Publication Publication Date Title
US4709296A (en) Protection arrangement for a telephone subscriber line interface circuit
US5087871A (en) Power supply with inrush current limiter
US5079455A (en) Surge current-limiting circuit for a large-capacitance load
US5319515A (en) Circuit protection arrangement
EP0167172B1 (en) Overcurrent protection circuit
JPH07503358A (ja) 短絡電流制限保護器
EP0291169B1 (en) Protection arrangement for a telephone subscriber line interface circuit
IE913602A1 (en) Circuit protection arrangement
US4528608A (en) Electronic current interrupter included in a DC distribution system
JPS61173671A (ja) スイツチングレギユレータの電流監視装置
JPS6030140B2 (ja) 電話機用回路
JPS61273169A (ja) スイツチングレギユレ−タ
CZ19539U1 (cs) Ochranný obvod pro napetové mericí transformátory
JPS6122718A (ja) 過電流保護回路
JPS6122717A (ja) 過電流保護回路
JPH11252285A (ja) トランスレスデジタル回線バッテリー供給回路
JPS6118312A (ja) 過電流保護回路
CN1050237C (zh) 具有储能电路的故障电流保护开关
SU907529A2 (ru) Импульсный стабилизатор посто нного напр жени
JPS62260518A (ja) 過電流保護回路
JPH0684747U (ja) 加入者回路の過電流保護回路
KR900005092Y1 (ko) 과부하시 퓨우즈 융단 유도회로
JPS6281929A (ja) 抵抗式負荷時タツプ切換器
JPH021685A (ja) ループ閉成スイッチ回路
JPH0729708Y2 (ja) 電源保護回路