SU123205A1 - The way to increase the voltage of the power supplied from the central battery of the telephone exchange to the telephone amplifier - Google Patents
The way to increase the voltage of the power supplied from the central battery of the telephone exchange to the telephone amplifierInfo
- Publication number
- SU123205A1 SU123205A1 SU617594A SU617594A SU123205A1 SU 123205 A1 SU123205 A1 SU 123205A1 SU 617594 A SU617594 A SU 617594A SU 617594 A SU617594 A SU 617594A SU 123205 A1 SU123205 A1 SU 123205A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- telephone
- voltage
- amplifier
- increase
- way
- Prior art date
Links
Landscapes
- Devices For Supply Of Signal Current (AREA)
- Interface Circuits In Exchanges (AREA)
Description
В практике телефонной св зи возможны неблагопри тные услови дл осуществлени дистанционного питани усилителей на полупроводниковых триодах в схемах телефонных аппаратов системы ЦБ, когда сопротивление абонентской линии посто нному току составл ет примерно 1500 ом, сопротивление аппарата 300 ом и напр жение станционной батареи машинной системы АТС-50 в. В этих услови х напр жение на входе телефонного аппарата составл ет 4 в, в то врем , как дл питани телефонного усилител требуетс напр жение около Ш е.In the practice of telephone communication, unfavorable conditions are possible for the remote powering of amplifiers on semiconductor triodes in telephone circuits of the central bank system when the resistance of the subscriber line is approximately 1500 ohms, the resistance of the device is 300 ohms and the voltage of the station battery of the ATC- 50 in. Under these conditions, the voltage at the input of the telephone is 4 volts, while the voltage required to power the telephone amplifier is about E.
Предлагаетс способ повышени напр жени питани , поступаюш ,его от центральной батареи телефонной станции к усилителю телефонного аппарата. Суш.ность изобретени заключаетс в уменьшении тока питани микрофона при уменьшении падени напр жени в линии и, соответственно, увачичении до необходимого значени напр жени питани усилител телефонного аппарата. Это достигаетс путем последовательного включени в цепь микрофона добавочного сопротивлени R g (см. чертеж), шунтированного конденсатором С дл снижени потерь на звуковых частотах. Вызов и отбой осуществл етс специальным рычажным переключателем 1, обеспечивающим посылку кратковременных сигналов вызова и отбо , согласно авт. св. № 106867. Этот способ может быть применен лишь при включении телефонных аппаратов в станцию специальной системы, предусматривающей приемку импульсов дл управлени вызовом и отбоем; в этих услови х предлагаемый cuocof6 даст известный эффект в улучшении св зи.A method is proposed for increasing the voltage of the power supplied by it from the central battery of the telephone exchange to the amplifier of the telephone set. The inventive dryness consists in reducing the microphone power supply current while reducing the voltage drop in the line and, accordingly, respecting the required power supply voltage of the telephone amplifier. This is achieved by successively inserting into the microphone circuit an additional impedance Rg (see drawing), shunted by capacitor C to reduce audio loss. The call and the end call is carried out by a special lever switch 1, which ensures the sending of short-term call signals and pick-up, according to the author. St. No. 106867. This method can be applied only when the telephone sets are turned on in the station of a special system that provides for the acceptance of pulses for call control and call release; in these conditions, the proposed cuocof6 will give a known effect in improving communication.
Предмет изобретени Subject invention
Способ повышени напр жепи питани , поступающего от центральной батареи телефонной станции к усилителю телефонного аппарата , при котором вызов и отбой осуществл ют рычажным переключателем по авт. св. № 106867, отличаю,щийс тем, что, с целью усилени разговорных токов на удаленн.ых т.елефонных св з х, уменьшают ток питани микрофона последовательнам включением в его цепь сопротивлени , шунтированного конденсатором, уменьщающим потери на звуковых частотах. -s The method of increasing the voltage supplied from the central battery of the telephone exchange to the amplifier of the telephone set, during which the call and the end call are carried out using a lever switch according to the author. St. No. 106867, distinguished by the fact that, in order to amplify conversational currents on remote telephone connections, they reduce the current supply of the microphone by successively including in its circuit a resistance that is bridged by a capacitor that reduces audio loss. -s
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о шгabout shg
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU617594A SU123205A1 (en) | 1959-01-26 | 1959-01-26 | The way to increase the voltage of the power supplied from the central battery of the telephone exchange to the telephone amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU617594A SU123205A1 (en) | 1959-01-26 | 1959-01-26 | The way to increase the voltage of the power supplied from the central battery of the telephone exchange to the telephone amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU123205A1 true SU123205A1 (en) | 1959-11-30 |
Family
ID=48394787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU617594A SU123205A1 (en) | 1959-01-26 | 1959-01-26 | The way to increase the voltage of the power supplied from the central battery of the telephone exchange to the telephone amplifier |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU123205A1 (en) |
-
1959
- 1959-01-26 SU SU617594A patent/SU123205A1/en active
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