JPS59229911A - 自動利得制御回路 - Google Patents

自動利得制御回路

Info

Publication number
JPS59229911A
JPS59229911A JP8477983A JP8477983A JPS59229911A JP S59229911 A JPS59229911 A JP S59229911A JP 8477983 A JP8477983 A JP 8477983A JP 8477983 A JP8477983 A JP 8477983A JP S59229911 A JPS59229911 A JP S59229911A
Authority
JP
Japan
Prior art keywords
current
output
transistor
differential amplifier
level
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
JP8477983A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0446004B2 (enExample
Inventor
Junichi Hikita
純一 疋田
Takuzo Kamimura
上村　卓三
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.)
Rohm Co Ltd
Original Assignee
Rohm 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 Rohm Co Ltd filed Critical Rohm Co Ltd
Priority to JP8477983A priority Critical patent/JPS59229911A/ja
Publication of JPS59229911A publication Critical patent/JPS59229911A/ja
Publication of JPH0446004B2 publication Critical patent/JPH0446004B2/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
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid-state elements
    • H03G1/0023—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid-state elements in emitter-coupled or cascode amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Control Of Amplification And Gain Control (AREA)
JP8477983A 1983-05-13 1983-05-13 自動利得制御回路 Granted JPS59229911A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8477983A JPS59229911A (ja) 1983-05-13 1983-05-13 自動利得制御回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8477983A JPS59229911A (ja) 1983-05-13 1983-05-13 自動利得制御回路

Publications (2)

Publication Number Publication Date
JPS59229911A true JPS59229911A (ja) 1984-12-24
JPH0446004B2 JPH0446004B2 (enExample) 1992-07-28

Family

ID=13840170

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8477983A Granted JPS59229911A (ja) 1983-05-13 1983-05-13 自動利得制御回路

Country Status (1)

Country Link
JP (1) JPS59229911A (enExample)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS546748A (en) * 1977-06-17 1979-01-19 Pioneer Electronic Corp Negative feedback amplifier gain control circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS546748A (en) * 1977-06-17 1979-01-19 Pioneer Electronic Corp Negative feedback amplifier gain control circuit

Also Published As

Publication number Publication date
JPH0446004B2 (enExample) 1992-07-28

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