JPS55140310A - Voltage follower circuit - Google Patents

Voltage follower circuit

Info

Publication number
JPS55140310A
JPS55140310A JP4826379A JP4826379A JPS55140310A JP S55140310 A JPS55140310 A JP S55140310A JP 4826379 A JP4826379 A JP 4826379A JP 4826379 A JP4826379 A JP 4826379A JP S55140310 A JPS55140310 A JP S55140310A
Authority
JP
Japan
Prior art keywords
voltage
input
circuit
voltage follower
type operational
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
JP4826379A
Other languages
Japanese (ja)
Other versions
JPS6117412B2 (en
Inventor
Eiichi Matsuyama
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP4826379A priority Critical patent/JPS55140310A/en
Publication of JPS55140310A publication Critical patent/JPS55140310A/en
Publication of JPS6117412B2 publication Critical patent/JPS6117412B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To form a voltage follower circuit which operates accurately throughout all voltage regions, by using pnp and npn differential input type operational amplifiers. CONSTITUTION:An input voltage is supplied commonly to the input of the first voltage follower unit circuit VF1 using npn differential input type operational amplifier A1 and the input of the second voltage follower unit circuit VF2 using pnp differential input type operational amplifier A2. The input voltage is compared with the reference voltage by comparator A3; and the output of circuit VF1 and the output of circuit VF2 are switched for the input voltage higher than the reference voltage and the input voltage lower than the reference voltage respectively and are outputted. Thus, operating circuits A1 and A2 compensate defects of blind zones of each other, so that a voltage follower circuit can be obtained which operates accurately throughout all voltage regions.
JP4826379A 1979-04-18 1979-04-18 Voltage follower circuit Granted JPS55140310A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4826379A JPS55140310A (en) 1979-04-18 1979-04-18 Voltage follower circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4826379A JPS55140310A (en) 1979-04-18 1979-04-18 Voltage follower circuit

Publications (2)

Publication Number Publication Date
JPS55140310A true JPS55140310A (en) 1980-11-01
JPS6117412B2 JPS6117412B2 (en) 1986-05-07

Family

ID=12798541

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4826379A Granted JPS55140310A (en) 1979-04-18 1979-04-18 Voltage follower circuit

Country Status (1)

Country Link
JP (1) JPS55140310A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02125508A (en) * 1988-11-04 1990-05-14 Nec Ic Microcomput Syst Ltd Input circuit
JP2013532914A (en) * 2011-01-06 2013-08-19 旭化成エレクトロニクス株式会社 Loop filter buffer with level shifter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02125508A (en) * 1988-11-04 1990-05-14 Nec Ic Microcomput Syst Ltd Input circuit
JP2013532914A (en) * 2011-01-06 2013-08-19 旭化成エレクトロニクス株式会社 Loop filter buffer with level shifter

Also Published As

Publication number Publication date
JPS6117412B2 (en) 1986-05-07

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