JPS57111113A - Voltage limiting circuit - Google Patents

Voltage limiting circuit

Info

Publication number
JPS57111113A
JPS57111113A JP55185008A JP18500880A JPS57111113A JP S57111113 A JPS57111113 A JP S57111113A JP 55185008 A JP55185008 A JP 55185008A JP 18500880 A JP18500880 A JP 18500880A JP S57111113 A JPS57111113 A JP S57111113A
Authority
JP
Japan
Prior art keywords
output
zener diode
terminal
anode side
resistance
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
JP55185008A
Other languages
Japanese (ja)
Inventor
Hirokuni Tsuji
Kunihiro Sakata
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP55185008A priority Critical patent/JPS57111113A/en
Publication of JPS57111113A publication Critical patent/JPS57111113A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
    • H03G11/02—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general by means of diodes

Landscapes

  • Control Of Voltage And Current In General (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

PURPOSE:To increase electric power of an effective part to a prescribed value, by providing both an inversional amplifier for generating a signal being opposite in polarity to an input signal, and a Zener diode inserted between an output and a load of this inversional amplifier. CONSTITUTION:A voltage sine waveform is applied to an input terminal. The input terminal is connected not only to an output terminal and the anode side of a Zener diode D3 but also to a negative terminal of an operational amplifier OP1. A positive terminal of OP1 is grounded. An output of OP1 is connected to a parallel circuit consisting of a variable resistance R3, and that which has connected to the cathode sides of Zener diodes D1, D2 by making them butt against each other, by which a feedback circuit of OP1 is formed. Also, the output of OP1 is connected to the anode side of a Zener diode D4 through a resistance R4. The Zener diodes D4, D3 are connected by making their cathode sides butt against each other, and an output is fetched from the anode side of the Zener diode D3. To the output side, a load resistance RL is connected. In this way, electric power of the effective part is increased to the limit of a prescribed value.
JP55185008A 1980-12-27 1980-12-27 Voltage limiting circuit Pending JPS57111113A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55185008A JPS57111113A (en) 1980-12-27 1980-12-27 Voltage limiting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55185008A JPS57111113A (en) 1980-12-27 1980-12-27 Voltage limiting circuit

Publications (1)

Publication Number Publication Date
JPS57111113A true JPS57111113A (en) 1982-07-10

Family

ID=16163154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55185008A Pending JPS57111113A (en) 1980-12-27 1980-12-27 Voltage limiting circuit

Country Status (1)

Country Link
JP (1) JPS57111113A (en)

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