JPS5470752A - Output voltage limiting circuit for operational amplifier - Google Patents

Output voltage limiting circuit for operational amplifier

Info

Publication number
JPS5470752A
JPS5470752A JP13806477A JP13806477A JPS5470752A JP S5470752 A JPS5470752 A JP S5470752A JP 13806477 A JP13806477 A JP 13806477A JP 13806477 A JP13806477 A JP 13806477A JP S5470752 A JPS5470752 A JP S5470752A
Authority
JP
Japan
Prior art keywords
voltage
amplifier
output voltage
operational amplifier
limit
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
JP13806477A
Other languages
Japanese (ja)
Inventor
Tsutomu Yamada
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 JP13806477A priority Critical patent/JPS5470752A/en
Publication of JPS5470752A publication Critical patent/JPS5470752A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To decrease the reduction of the output current and thus to limit the output voltage for the operational amplifier by keeping the limit voltage via the high-gain detector and FET and also controlling freely the limit voltage via the equidistant set scales. CONSTITUTION:The following units are installed: feedback resistance 4 connected between the input and the output terminals of operational amplifier 5; FET12 and 13 connected in parallel to resistance 4; and limit voltage setter 14 and 15 which produce the optional voltage. In addition, operational amplifier 20 and 21 containing input resistance 16-19 are installed to compare the generated voltage of setter 14 and 15 with the output voltage of amplifier 5. When the output voltage of amplifier 5 s larger than the absolute value of the positive or negative generated voltage of setter 14 or 15, a high amplification factor is given to amplifier 20 or 21, with FET12 or 13 made to conduct. And the value of resistance 4 is made to approximate to zero to limit the output voltage of amplifier 5.
JP13806477A 1977-11-16 1977-11-16 Output voltage limiting circuit for operational amplifier Pending JPS5470752A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13806477A JPS5470752A (en) 1977-11-16 1977-11-16 Output voltage limiting circuit for operational amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13806477A JPS5470752A (en) 1977-11-16 1977-11-16 Output voltage limiting circuit for operational amplifier

Publications (1)

Publication Number Publication Date
JPS5470752A true JPS5470752A (en) 1979-06-06

Family

ID=15213125

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13806477A Pending JPS5470752A (en) 1977-11-16 1977-11-16 Output voltage limiting circuit for operational amplifier

Country Status (1)

Country Link
JP (1) JPS5470752A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007230646A (en) * 2006-03-02 2007-09-13 Azuma Iwasaki Tube content squeezing tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007230646A (en) * 2006-03-02 2007-09-13 Azuma Iwasaki Tube content squeezing tool

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