JPS579114A - Limiter circuit - Google Patents

Limiter circuit

Info

Publication number
JPS579114A
JPS579114A JP8280580A JP8280580A JPS579114A JP S579114 A JPS579114 A JP S579114A JP 8280580 A JP8280580 A JP 8280580A JP 8280580 A JP8280580 A JP 8280580A JP S579114 A JPS579114 A JP S579114A
Authority
JP
Japan
Prior art keywords
limiter
pulse
operational amplifier
amplifier
depending
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
JP8280580A
Other languages
Japanese (ja)
Inventor
Ryota Akiyama
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP8280580A priority Critical patent/JPS579114A/en
Publication of JPS579114A publication Critical patent/JPS579114A/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
    • H03G11/002—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general without controlling loop

Landscapes

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

Abstract

PURPOSE:To realize the limiter characteristics from the soft- to hard-limiter, by turning on or off of a switching elements depending on the output level of an operational amplifier, through the connection of the switching element to a feedback path of the operational amplifier. CONSTITUTION:If resistors r1, r2 are sufficiently smaller than a feedback resistor Rf, the limiter acts like as a hard-limiter. In this case, the output signal of an operational amplifier 4 is compared respectively with limiter operating voltages VS1, VS2 at comparators 10, 12. Further, a pulse (b) is outputted from the comparator 10 depending on the part higher than the voltage VS1 in the signal waveform, and a pulse (c) is outputted from the comparator 12 depending on the part higher than the voltage VS2. These pulse outputs are respectively applied to FETs 6 and 8 connected to the feedback path of the amplifier 4 respectively, and the gain of the amplifier 4 is rapidly lowered by turning on the FETs 6 and 8 when the pulse outputs are high.
JP8280580A 1980-06-20 1980-06-20 Limiter circuit Pending JPS579114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8280580A JPS579114A (en) 1980-06-20 1980-06-20 Limiter circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8280580A JPS579114A (en) 1980-06-20 1980-06-20 Limiter circuit

Publications (1)

Publication Number Publication Date
JPS579114A true JPS579114A (en) 1982-01-18

Family

ID=13784619

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8280580A Pending JPS579114A (en) 1980-06-20 1980-06-20 Limiter circuit

Country Status (1)

Country Link
JP (1) JPS579114A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61176205A (en) * 1985-01-31 1986-08-07 エツセ・ジ・エツセ・ミクロエレツトロニーカ・エツセ・ピ・ア Operational amplifier
JPS6451813A (en) * 1987-08-24 1989-02-28 Ricoh Kk Output voltage limit circuit
EP0352906A2 (en) * 1988-06-30 1990-01-31 Advanced Micro Devices, Inc. Differential non-linear amplifier
JP2012191616A (en) * 2011-03-08 2012-10-04 Honeywell Internatl Inc High linearity signal processing amplifier

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61176205A (en) * 1985-01-31 1986-08-07 エツセ・ジ・エツセ・ミクロエレツトロニーカ・エツセ・ピ・ア Operational amplifier
JPS6451813A (en) * 1987-08-24 1989-02-28 Ricoh Kk Output voltage limit circuit
EP0352906A2 (en) * 1988-06-30 1990-01-31 Advanced Micro Devices, Inc. Differential non-linear amplifier
JP2012191616A (en) * 2011-03-08 2012-10-04 Honeywell Internatl Inc High linearity signal processing amplifier

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