JPS6489824A - 2/4 wire converter - Google Patents
2/4 wire converterInfo
- Publication number
- JPS6489824A JPS6489824A JP24672387A JP24672387A JPS6489824A JP S6489824 A JPS6489824 A JP S6489824A JP 24672387 A JP24672387 A JP 24672387A JP 24672387 A JP24672387 A JP 24672387A JP S6489824 A JPS6489824 A JP S6489824A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- transformer
- output terminal
- impedance
- bypass circuit
- 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
Links
Landscapes
- Networks Using Active Elements (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
PURPOSE:To use an IC switch as a switch to change impedance by attenuating a detour of a 4-wire output terminal of a hydrid transformer by using a bypass circuit. CONSTITUTION:A bias circuit 11 from a 4-wire input terminal 2 to a 4-wire output terminal 3 of a hydrid transformer 1 is provided. The bypass circuit 11 has a transfer function corresponding to the transfer function from the 4-wire input terminal 2 to the 4-wire output terminal 5 where the ratio of a pure resistor R to an optional impedance Z' is equal to a ratio of the 4-wire terminator R0 to the transmission line impedance Z viewing two wire sides 8, 9 of the transformer 1. The difference between the output of the bypass circuit 11 and the bypass from the 4-wire input terminal 2 to the 4-wire output terminal 3 is taken by a subtractor 12. Thus, detour of the transformer is cancelled by a bypass circuit capable of use of the IC switch and revise of the impedance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24672387A JPS6489824A (en) | 1987-09-30 | 1987-09-30 | 2/4 wire converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24672387A JPS6489824A (en) | 1987-09-30 | 1987-09-30 | 2/4 wire converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6489824A true JPS6489824A (en) | 1989-04-05 |
Family
ID=17152692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24672387A Pending JPS6489824A (en) | 1987-09-30 | 1987-09-30 | 2/4 wire converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6489824A (en) |
-
1987
- 1987-09-30 JP JP24672387A patent/JPS6489824A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0266919A3 (en) | Integrated circuit output buffer | |
| AU587823B2 (en) | Line circuit | |
| JPS5340257A (en) | Tone control circuit | |
| JPS5725731A (en) | Hybrid circuit | |
| JPS56149148A (en) | Signal transmission system | |
| JPS56103501A (en) | Mic connecting structure | |
| JPS6489824A (en) | 2/4 wire converter | |
| IE801097L (en) | Telecommunications line circuit | |
| AU580129B2 (en) | Second order all pass network | |
| EP0376551A3 (en) | Solid state switch circuit | |
| JPS5634270A (en) | Connection system between main units in key telephone set | |
| ATE47767T1 (en) | HF BROADBAND TRANSMITTER CIRCUIT. | |
| JPS56115041A (en) | Electronic hybrid circuit | |
| JPS56115017A (en) | Branching device | |
| JPS57124913A (en) | Branch circuit | |
| JPS55134402A (en) | Process control unit | |
| JPS57104243A (en) | Semiconductor device | |
| JPS57194647A (en) | Optical communication system | |
| JPS5632836A (en) | Electronic hybrid circuit | |
| JPS60125A (en) | 2-wire/4-wire converting circuit | |
| JPS57204167A (en) | Semiconductor integrated circuit | |
| JPS5493947A (en) | Resistance hybrid circuit | |
| JPS55121751A (en) | Duplex communication terminal circuit | |
| JPS5711594A (en) | Electronic switch network | |
| JPS56128028A (en) | Voice duplex communicating system |