JPS55132115A - Non-linear amplifier - Google Patents

Non-linear amplifier

Info

Publication number
JPS55132115A
JPS55132115A JP3860279A JP3860279A JPS55132115A JP S55132115 A JPS55132115 A JP S55132115A JP 3860279 A JP3860279 A JP 3860279A JP 3860279 A JP3860279 A JP 3860279A JP S55132115 A JPS55132115 A JP S55132115A
Authority
JP
Japan
Prior art keywords
input
current source
output
signal current
threshold
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
JP3860279A
Other languages
Japanese (ja)
Other versions
JPS6252964B2 (en
Inventor
Hiroshi Gomi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3860279A priority Critical patent/JPS55132115A/en
Publication of JPS55132115A publication Critical patent/JPS55132115A/en
Publication of JPS6252964B2 publication Critical patent/JPS6252964B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

PURPOSE:To make it possible to set independently threshold points at which input and output gains are changed over, by providing a 2nd signal current source connected to a 1st signal current source with an input-output terminal. CONSTITUTION:The emitter of transistor TRQ1, i.e., a 1st signal current source with an input-output terminal, is connected to power supply Vcc via resistance R1, and its collector is grounded via resistance R2 and 2nd signal current source I01. Then, the emitter of TRQ2 is connected to the connection point between resistance R2 and current source I01, its collector is connected to power supply Vcc, and its base is applied with voltage VB. In the formation of this circuit, the threshold point at the input side is determined by current I01 and that on the output side depends upon current I01 and voltage VB. The input and output threshold values can therefore be set to desired values independently.
JP3860279A 1979-03-31 1979-03-31 Non-linear amplifier Granted JPS55132115A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3860279A JPS55132115A (en) 1979-03-31 1979-03-31 Non-linear amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3860279A JPS55132115A (en) 1979-03-31 1979-03-31 Non-linear amplifier

Publications (2)

Publication Number Publication Date
JPS55132115A true JPS55132115A (en) 1980-10-14
JPS6252964B2 JPS6252964B2 (en) 1987-11-09

Family

ID=12529814

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3860279A Granted JPS55132115A (en) 1979-03-31 1979-03-31 Non-linear amplifier

Country Status (1)

Country Link
JP (1) JPS55132115A (en)

Also Published As

Publication number Publication date
JPS6252964B2 (en) 1987-11-09

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