JPS5624814A - Variable amplitude equalizer - Google Patents

Variable amplitude equalizer

Info

Publication number
JPS5624814A
JPS5624814A JP10021879A JP10021879A JPS5624814A JP S5624814 A JPS5624814 A JP S5624814A JP 10021879 A JP10021879 A JP 10021879A JP 10021879 A JP10021879 A JP 10021879A JP S5624814 A JPS5624814 A JP S5624814A
Authority
JP
Japan
Prior art keywords
conductance
amplifier
variable
input terminal
way
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
JP10021879A
Other languages
Japanese (ja)
Other versions
JPS6031405B2 (en
Inventor
Yasuo Shoji
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 JP10021879A priority Critical patent/JPS6031405B2/en
Publication of JPS5624814A publication Critical patent/JPS5624814A/en
Publication of JPS6031405B2 publication Critical patent/JPS6031405B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/14—Control of transmission; Equalising characterised by the equalising network used
    • H04B3/143—Control of transmission; Equalising characterised by the equalising network used using amplitude-frequency equalisers
    • H04B3/145—Control of transmission; Equalising characterised by the equalising network used using amplitude-frequency equalisers variable equalisers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Networks Using Active Elements (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE:To make it possible to vary attenuation easily by composing a variable amplitude equalizer, equivalent to a Bode type variable amplitude equalizer, of one variable conductance and one constant resistance circuit. CONSTITUTION:Terminal 2 is grounded and terminal 1 is connected to inverted input terminal (-) of operational amplifier Q1 by way of conductance G1 and also to uninverted input terminal (+) of amplifier Q1 by way of conductance G3. The output of amplifier Q1 is fed back to inverted input terminal (-) of amplifier Q1 by way of conductance G2. Between uninverted input terminal (+) of amplifier Q1 and the earth, the parallel circuit of constant resistance circuit N1 and conductance G4 terminated by variable conductance Ga is interposed. Consequently, amplitude equalization is carried out through circuit N1, conductance G4 and variable conductance Ga.
JP10021879A 1979-08-08 1979-08-08 variable amplitude equalizer Expired JPS6031405B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10021879A JPS6031405B2 (en) 1979-08-08 1979-08-08 variable amplitude equalizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10021879A JPS6031405B2 (en) 1979-08-08 1979-08-08 variable amplitude equalizer

Publications (2)

Publication Number Publication Date
JPS5624814A true JPS5624814A (en) 1981-03-10
JPS6031405B2 JPS6031405B2 (en) 1985-07-22

Family

ID=14268153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10021879A Expired JPS6031405B2 (en) 1979-08-08 1979-08-08 variable amplitude equalizer

Country Status (1)

Country Link
JP (1) JPS6031405B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2518585Y2 (en) * 1991-07-11 1996-11-27 正行 竹内 Insert for locking hangings of concrete molded products

Also Published As

Publication number Publication date
JPS6031405B2 (en) 1985-07-22

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