JPH0427760B2 - - Google Patents
Info
- Publication number
- JPH0427760B2 JPH0427760B2 JP3438283A JP3438283A JPH0427760B2 JP H0427760 B2 JPH0427760 B2 JP H0427760B2 JP 3438283 A JP3438283 A JP 3438283A JP 3438283 A JP3438283 A JP 3438283A JP H0427760 B2 JPH0427760 B2 JP H0427760B2
- Authority
- JP
- Japan
- Prior art keywords
- line side
- circuit
- current
- line
- output terminal
- 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.)
- Expired
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)
- Interface Circuits In Exchanges (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3438283A JPS59161192A (ja) | 1983-03-04 | 1983-03-04 | 通話電流依存性除去回路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3438283A JPS59161192A (ja) | 1983-03-04 | 1983-03-04 | 通話電流依存性除去回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59161192A JPS59161192A (ja) | 1984-09-11 |
| JPH0427760B2 true JPH0427760B2 (OSRAM) | 1992-05-12 |
Family
ID=12412615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3438283A Granted JPS59161192A (ja) | 1983-03-04 | 1983-03-04 | 通話電流依存性除去回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59161192A (OSRAM) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2780363B2 (ja) * | 1989-08-11 | 1998-07-30 | 富士通株式会社 | ハイブリッド回路 |
-
1983
- 1983-03-04 JP JP3438283A patent/JPS59161192A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59161192A (ja) | 1984-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4431874A (en) | Balanced current multiplier circuit for a subscriber loop interface circuit | |
| US4549129A (en) | Regulator circuit | |
| JP3111460B2 (ja) | 電圧/絶対値電流コンバータ回路 | |
| JPH0427760B2 (OSRAM) | ||
| JPS643387B2 (OSRAM) | ||
| EP0096473B1 (en) | Active impedance line feed circuit | |
| CA1151331A (en) | Amplifier for use in a line circuit | |
| US5337354A (en) | Tip-ring voltage correction circuit | |
| US5347575A (en) | Circuit to detect the hook status and ringing at the CPE end of a telephone network | |
| CA2067535C (en) | Current limited subscriber interface circuit | |
| US4302636A (en) | Subscriber's electronic line equipment comprising a two-wire-four-wire conversion circuit for a telephone exchange | |
| JPS6115648Y2 (OSRAM) | ||
| JPH071872Y2 (ja) | 半導体集積回路 | |
| JPS5846111B2 (ja) | 通話電流供給回路 | |
| JP2891782B2 (ja) | 電話インタフェース回路用出力段 | |
| US6091284A (en) | Current control circuit | |
| JPS6242662A (ja) | 給電回路 | |
| JPS60172823A (ja) | 増幅器 | |
| JPS62155665A (ja) | 直流給電回路 | |
| JPS61113354A (ja) | 公衆電話機用加入者回路 | |
| WO1991001069A1 (en) | Speaker drive arrangement for loudspeaker telephone | |
| JPH0646756B2 (ja) | 差動信号検出回路 | |
| JPS6269796A (ja) | 加入者回路 | |
| JPS60183890A (ja) | 加入者回路 | |
| JPS5869132A (ja) | 電子化ハイブリツド回路 |