JPS6238012A - 可変利得回路 - Google Patents

可変利得回路

Info

Publication number
JPS6238012A
JPS6238012A JP17720485A JP17720485A JPS6238012A JP S6238012 A JPS6238012 A JP S6238012A JP 17720485 A JP17720485 A JP 17720485A JP 17720485 A JP17720485 A JP 17720485A JP S6238012 A JPS6238012 A JP S6238012A
Authority
JP
Japan
Prior art keywords
transistor
input terminal
collector
variable gain
operational 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
JP17720485A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0578965B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Toshikazu Fujii
藤井　俊和
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
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 filed Critical Toshiba Corp
Priority to JP17720485A priority Critical patent/JPS6238012A/ja
Publication of JPS6238012A publication Critical patent/JPS6238012A/ja
Publication of JPH0578965B2 publication Critical patent/JPH0578965B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Amplification And Gain Control (AREA)
JP17720485A 1985-08-12 1985-08-12 可変利得回路 Granted JPS6238012A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17720485A JPS6238012A (ja) 1985-08-12 1985-08-12 可変利得回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17720485A JPS6238012A (ja) 1985-08-12 1985-08-12 可変利得回路

Publications (2)

Publication Number Publication Date
JPS6238012A true JPS6238012A (ja) 1987-02-19
JPH0578965B2 JPH0578965B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-10-29

Family

ID=16026992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17720485A Granted JPS6238012A (ja) 1985-08-12 1985-08-12 可変利得回路

Country Status (1)

Country Link
JP (1) JPS6238012A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01160716U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1988-04-26 1989-11-08
JPH02103916U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1989-02-07 1990-08-17

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5187945A (ja) * 1975-01-31 1976-07-31 Pioneer Electronic Corp Ritokuseigyozofukukairo

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5187945A (ja) * 1975-01-31 1976-07-31 Pioneer Electronic Corp Ritokuseigyozofukukairo

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01160716U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1988-04-26 1989-11-08
JPH02103916U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1989-02-07 1990-08-17

Also Published As

Publication number Publication date
JPH0578965B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-10-29

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term