JPS58101556A - 直流供給遮断回路 - Google Patents

直流供給遮断回路

Info

Publication number
JPS58101556A
JPS58101556A JP56200154A JP20015481A JPS58101556A JP S58101556 A JPS58101556 A JP S58101556A JP 56200154 A JP56200154 A JP 56200154A JP 20015481 A JP20015481 A JP 20015481A JP S58101556 A JPS58101556 A JP S58101556A
Authority
JP
Japan
Prior art keywords
circuit
current
switch
pnpn
supply
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.)
Granted
Application number
JP56200154A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0415656B2 (enrdf_load_stackoverflow
Inventor
Ichiro Ohigata
大日方　一郎
Junjiro Kitano
北野　純二郎
Toshio Hayashi
林　敏夫
Toshiyuki Tawara
俊幸 田原
Isamu Ueki
植木　勇
Kenzo Takada
高田　健三
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 JP56200154A priority Critical patent/JPS58101556A/ja
Publication of JPS58101556A publication Critical patent/JPS58101556A/ja
Publication of JPH0415656B2 publication Critical patent/JPH0415656B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/001—Current supply source at the exchanger providing current to substations
    • H04M19/005—Feeding arrangements without the use of line transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP56200154A 1981-12-14 1981-12-14 直流供給遮断回路 Granted JPS58101556A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56200154A JPS58101556A (ja) 1981-12-14 1981-12-14 直流供給遮断回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56200154A JPS58101556A (ja) 1981-12-14 1981-12-14 直流供給遮断回路

Publications (2)

Publication Number Publication Date
JPS58101556A true JPS58101556A (ja) 1983-06-16
JPH0415656B2 JPH0415656B2 (enrdf_load_stackoverflow) 1992-03-18

Family

ID=16419681

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56200154A Granted JPS58101556A (ja) 1981-12-14 1981-12-14 直流供給遮断回路

Country Status (1)

Country Link
JP (1) JPS58101556A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS603258A (ja) * 1983-06-21 1985-01-09 Oki Electric Ind Co Ltd 極性反転方式

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4424825Y1 (enrdf_load_stackoverflow) * 1966-02-16 1969-10-20
JPS51114856A (en) * 1975-04-01 1976-10-08 Mitsubishi Electric Corp Semiconductor switch
JPS545649A (en) * 1977-06-15 1979-01-17 Mitsubishi Electric Corp Gate turn-off thyristor
JPS5596755A (en) * 1979-01-17 1980-07-23 Nec Corp Terminal starting system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4424825Y1 (enrdf_load_stackoverflow) * 1966-02-16 1969-10-20
JPS51114856A (en) * 1975-04-01 1976-10-08 Mitsubishi Electric Corp Semiconductor switch
JPS545649A (en) * 1977-06-15 1979-01-17 Mitsubishi Electric Corp Gate turn-off thyristor
JPS5596755A (en) * 1979-01-17 1980-07-23 Nec Corp Terminal starting system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS603258A (ja) * 1983-06-21 1985-01-09 Oki Electric Ind Co Ltd 極性反転方式

Also Published As

Publication number Publication date
JPH0415656B2 (enrdf_load_stackoverflow) 1992-03-18

Similar Documents

Publication Publication Date Title
JPH0237234Y2 (enrdf_load_stackoverflow)
DE2330233A1 (de) Elektronisches, vorzugsweise beruehrungslos arbeitendes schaltgeraet
US4015143A (en) Semiconductor switch
US4487457A (en) Gating circuit for combining series and parallel connected FETs
US4306119A (en) Telephone outpulsing circuit
JPS58101556A (ja) 直流供給遮断回路
CN1089403A (zh) 开关装置
JPS5959092A (ja) 電気的負荷用二方向駆動装置
DE2339751A1 (de) Spannungsregelndes netzgeraet
GB1377242A (en) End mark controlled switching system and matrix
KR960039604A (ko) 클램프 반도체 회로
GB946212A (en) Improvements in or relating to variable-impedance electric circuits
JPH0352081B2 (enrdf_load_stackoverflow)
US4016595A (en) Field effect transistor switching circuit
JPS593896B2 (ja) バイポ−ラトランジスタスイツチ装置
EP0225924A1 (en) Electronic memory element with a lambda transistor.
JPS6350798B2 (enrdf_load_stackoverflow)
US6873202B1 (en) Adaptive MOSFET resistor
US3162790A (en) Transistor relay circuit
US2909677A (en) Transistor current limiter
JP3297301B2 (ja) 光駆動ゼロクロス型トライアック
JPS587924A (ja) 半導体スイツチ回路
JPS62144564A (ja) 静電誘導形トランジスタのゲ−ト駆動回路
JPS61280711A (ja) 電源開閉回路
JPS63260220A (ja) 突入電流防止回路