[go: up one dir, main page]

JPS5731219A - Balance-to-unbalance converting circuit - Google Patents

Balance-to-unbalance converting circuit

Info

Publication number
JPS5731219A
JPS5731219A JP10591380A JP10591380A JPS5731219A JP S5731219 A JPS5731219 A JP S5731219A JP 10591380 A JP10591380 A JP 10591380A JP 10591380 A JP10591380 A JP 10591380A JP S5731219 A JPS5731219 A JP S5731219A
Authority
JP
Japan
Prior art keywords
balance
input signal
terminal
voltage
amplifier
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
JP10591380A
Other languages
Japanese (ja)
Other versions
JPS6242411B2 (en
Inventor
Hiroshi Ishikawa
Takaki Kobayashi
Eiji Minamitani
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
Original Assignee
Fujitsu 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 filed Critical Fujitsu Ltd
Priority to JP10591380A priority Critical patent/JPS5731219A/en
Publication of JPS5731219A publication Critical patent/JPS5731219A/en
Publication of JPS6242411B2 publication Critical patent/JPS6242411B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/32—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns

Landscapes

  • Networks Using Active Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

PURPOSE:To convert a balance input signal including the external noise into an unbalance signal, by giving a division of voltage to an input signal of the balance input signal and then connecting the input signal to both the forward phase input terminal and the reverse phase input terminal of an operational amplifier. CONSTITUTION:At the circuit correspondence part of an electronic switchboard, one of balance input signals V1 and V2 receives a division of voltage to be connected to the forward phase input terminal of an operational amplifier A. While the other balance input signal receives divisions of voltage R5 and R6 to be connected to the reverse phase input terminal 1 of the amplifier A via resistances R1 and R2. Then the terminal 1 is connected to an output terminal 3 of the amplifier A by a resistance R4 to deliver the difference of the balance input signals.
JP10591380A 1980-07-31 1980-07-31 Balance-to-unbalance converting circuit Granted JPS5731219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10591380A JPS5731219A (en) 1980-07-31 1980-07-31 Balance-to-unbalance converting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10591380A JPS5731219A (en) 1980-07-31 1980-07-31 Balance-to-unbalance converting circuit

Publications (2)

Publication Number Publication Date
JPS5731219A true JPS5731219A (en) 1982-02-19
JPS6242411B2 JPS6242411B2 (en) 1987-09-08

Family

ID=14420095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10591380A Granted JPS5731219A (en) 1980-07-31 1980-07-31 Balance-to-unbalance converting circuit

Country Status (1)

Country Link
JP (1) JPS5731219A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0257626U (en) * 1988-10-21 1990-04-25

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0257626U (en) * 1988-10-21 1990-04-25

Also Published As

Publication number Publication date
JPS6242411B2 (en) 1987-09-08

Similar Documents

Publication Publication Date Title
JPS5551361A (en) Range switching device for electric measuring instrument
JPS56166612A (en) Level shifting circuit
JPS5731219A (en) Balance-to-unbalance converting circuit
JPS5787216A (en) Amplifying circuit
ES8702981A1 (en) Output correction circuit for transducer means
JPS56119517A (en) Amplitude limiting circuit
JPS55117971A (en) Level indication circuit
JPS56168427A (en) Analog-to-digital converter
JPS56166613A (en) Voltage to current converting circuit
JPS5776918A (en) A/d converter
JPS5588424A (en) Digital-analog converter
JPS5781740A (en) Transmitter of pcm signal
JPS55132125A (en) Digital-to-analog converter
FR2406357A1 (en) Circuit connecting subscriber line to telephone exchange - has balanced amplifier whose input is connected to one or other of two supply points (BE 17.4.79)
JPS5769911A (en) Amplifier
JPS6454936A (en) Binary/ternary value converting circuit
SU1095352A1 (en) Two-step amplifier
JPS6471317A (en) Threshold comparing circuit
JPS5624897A (en) Attenuation quantity set system
JPS5453847A (en) Filter unit
FR2415405A1 (en) Circuit connecting subscriber line to telephone exchange - has balanced amplifier whose input is connected to one or other of two supply points (BE 17.4.79)
FR2412995A2 (en) Circuit connecting subscriber line to telephone exchange - has balanced amplifier whose input is connected to one or other of two supply points (BE 17.4.79)
JPS5260544A (en) Signal converter circuit
JPS54161259A (en) Voltage-frequency converter
JPS5466053A (en) Balance-unbalance converter