JPS62165414A - Level control circuit - Google Patents

Level control circuit

Info

Publication number
JPS62165414A
JPS62165414A JP697086A JP697086A JPS62165414A JP S62165414 A JPS62165414 A JP S62165414A JP 697086 A JP697086 A JP 697086A JP 697086 A JP697086 A JP 697086A JP S62165414 A JPS62165414 A JP S62165414A
Authority
JP
Japan
Prior art keywords
amplifier
circuit
output
inversional
input terminal
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.)
Pending
Application number
JP697086A
Other languages
Japanese (ja)
Inventor
Shinji Nakamura
Hitoshi Ihara
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP697086A priority Critical patent/JPS62165414A/en
Publication of JPS62165414A publication Critical patent/JPS62165414A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To simplify the constitution of a circuit and to reduce transient noise at the time of switching by selecting the output of a variable resistor or a variable gain circuit through a switch in a feedback loop of an inversional amplifier.
CONSTITUTION: The switching circuit 4, the variable resistor 5 and the variable gain circuit 7 are inserted into the feedback loop of the inversional amplifier 3 and the output of the amplifier 3 is supplied to one input terminal 4a of the circuit 4 through the resistor 5. The output of the amplifier 3 is supplied to the outer input terminal 4b of the circuit 4 through the gain circuit 7 and the resistor 6 and the output of the circuit 4 is supplied to the inversional input terminal of the amplifier 3. The non-inversional input terminal of the amplifier 3 is earthed and an output such that the level of the inversional input terminal to the earth level is generated from the amplifier 3, so that a potential difference is not almost generated between the input terminals 4a, 4b.
COPYRIGHT: (C)1987,JPO&Japio
JP697086A 1986-01-16 1986-01-16 Level control circuit Pending JPS62165414A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP697086A JPS62165414A (en) 1986-01-16 1986-01-16 Level control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP697086A JPS62165414A (en) 1986-01-16 1986-01-16 Level control circuit

Publications (1)

Publication Number Publication Date
JPS62165414A true JPS62165414A (en) 1987-07-22

Family

ID=11653054

Family Applications (1)

Application Number Title Priority Date Filing Date
JP697086A Pending JPS62165414A (en) 1986-01-16 1986-01-16 Level control circuit

Country Status (1)

Country Link
JP (1) JPS62165414A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100467883B1 (en) * 1996-03-27 2005-06-20 코닌클리케 필립스 일렉트로닉스 엔.브이. Wireless receiver
JP2009156235A (en) * 2007-12-27 2009-07-16 Kanayama Seiki Co Ltd Lubricating oil supply system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100467883B1 (en) * 1996-03-27 2005-06-20 코닌클리케 필립스 일렉트로닉스 엔.브이. Wireless receiver
JP2009156235A (en) * 2007-12-27 2009-07-16 Kanayama Seiki Co Ltd Lubricating oil supply system

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