JPS6218161A - 通話電流供給回路の地絡保護回路 - Google Patents

通話電流供給回路の地絡保護回路

Info

Publication number
JPS6218161A
JPS6218161A JP60155990A JP15599085A JPS6218161A JP S6218161 A JPS6218161 A JP S6218161A JP 60155990 A JP60155990 A JP 60155990A JP 15599085 A JP15599085 A JP 15599085A JP S6218161 A JPS6218161 A JP S6218161A
Authority
JP
Japan
Prior art keywords
current
circuit
transistor
current supply
base
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
JP60155990A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0362347B2 (enrdf_load_stackoverflow
Inventor
Takashi Hasumi
隆 蓮見
Iwao Uda
宇田　巌
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP60155990A priority Critical patent/JPS6218161A/ja
Publication of JPS6218161A publication Critical patent/JPS6218161A/ja
Publication of JPH0362347B2 publication Critical patent/JPH0362347B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP60155990A 1985-07-17 1985-07-17 通話電流供給回路の地絡保護回路 Granted JPS6218161A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60155990A JPS6218161A (ja) 1985-07-17 1985-07-17 通話電流供給回路の地絡保護回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60155990A JPS6218161A (ja) 1985-07-17 1985-07-17 通話電流供給回路の地絡保護回路

Publications (2)

Publication Number Publication Date
JPS6218161A true JPS6218161A (ja) 1987-01-27
JPH0362347B2 JPH0362347B2 (enrdf_load_stackoverflow) 1991-09-25

Family

ID=15617938

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60155990A Granted JPS6218161A (ja) 1985-07-17 1985-07-17 通話電流供給回路の地絡保護回路

Country Status (1)

Country Link
JP (1) JPS6218161A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01120169A (ja) * 1987-11-04 1989-05-12 Oki Electric Ind Co Ltd 電流供給回路の地絡保護回路

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01120169A (ja) * 1987-11-04 1989-05-12 Oki Electric Ind Co Ltd 電流供給回路の地絡保護回路

Also Published As

Publication number Publication date
JPH0362347B2 (enrdf_load_stackoverflow) 1991-09-25

Similar Documents

Publication Publication Date Title
US4408248A (en) Protection circuit
JP2951217B2 (ja) 電話加入者回路
US7091633B2 (en) Current-limiting logic interface circuit
JPH0121703B2 (enrdf_load_stackoverflow)
US4398066A (en) Automatic power denial circuit for a subscriber line interface circuit
JP3829400B2 (ja) 電話線のインターフェイスの過電圧に対する保護
US6069950A (en) Dual-limit current-limiting battery-feed circuit for a digital line
EP0915611B1 (en) Transformerless digital-line battery feed circuit
JPS596549B2 (ja) 電話機用３端子電源回路
JPH02193440A (ja) 伝送装置用回路装置
JPS6218161A (ja) 通話電流供給回路の地絡保護回路
JP2004523151A (ja) 過電圧保護回路
US3943432A (en) Electronic feeding bridge
US4631362A (en) Low resistance origination scan circuit
US4609782A (en) Solid state signal insertion circuit and method for use in a telephony system or the like
JPS5950656A (ja) 電流供給回路
JPS59176964A (ja) 通話電流供給回路
JPH01120169A (ja) 電流供給回路の地絡保護回路
JPS62253252A (ja) トランジスタスイツチ回路
JPH0351349B2 (enrdf_load_stackoverflow)
JPH0530641A (ja) 電源電圧の極性切替回路
JPH0252552A (ja) 電話交換装置の停電対策回路
JPH01231624A (ja) 電子化ラインスイッチのサージ保護回路
JPS58198954A (ja) Ｉｃの消費電力低減回路
JPS60220697A (ja) 通話路回路