GB1517948A - Limiter circuits - Google Patents

Limiter circuits

Info

Publication number
GB1517948A
GB1517948A GB3707175A GB3707175A GB1517948A GB 1517948 A GB1517948 A GB 1517948A GB 3707175 A GB3707175 A GB 3707175A GB 3707175 A GB3707175 A GB 3707175A GB 1517948 A GB1517948 A GB 1517948A
Authority
GB
United Kingdom
Prior art keywords
sept
output
current source
impedance
path
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.)
Expired
Application number
GB3707175A
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.)
Sony Corp
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
Publication of GB1517948A publication Critical patent/GB1517948A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/0082—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using bipolar transistor-type devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
    • H03G11/04—Limiting level dependent on strength of signal; Limiting level dependent on strength of carrier on which signal is modulated
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
    • H03G3/3015—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable using diodes or transistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

1517948 Limiters SONY CORP 9 Sept 1975 [12 Sept 1974] 37071/75 Heading H4R In a limiter having a signal path 1-2 with a series or shunt impedance Q1 controlled by a current source Q2, Q4, Q5 responsive to a voltage obtained by rectification Q3 of the signal in the path 1-2, a diode D1 forward-connected between the output of the current source and the output of the rectifier Q3 forms part of a bypass selectively operable S1, S2 to prevent (leakage) control current reaching the impedance Ql and thereby causing distortion.
GB3707175A 1974-09-12 1975-09-09 Limiter circuits Expired GB1517948A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11005674U JPS5515388Y2 (en) 1974-09-12 1974-09-12

Publications (1)

Publication Number Publication Date
GB1517948A true GB1517948A (en) 1978-07-19

Family

ID=14525958

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3707175A Expired GB1517948A (en) 1974-09-12 1975-09-09 Limiter circuits

Country Status (8)

Country Link
JP (1) JPS5515388Y2 (en)
AT (1) AT349067B (en)
CA (1) CA1054711A (en)
DE (1) DE2537276C3 (en)
FR (1) FR2285016A1 (en)
GB (1) GB1517948A (en)
NL (1) NL165347C (en)
SE (1) SE417148B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3134600A1 (en) * 1981-09-01 1983-05-26 AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang Drive circuit for a control amplifier
US10658997B2 (en) 2018-08-24 2020-05-19 Rgb Systems, Inc. Energy efficient clip limiting voltage controlled amplifier

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52153651A (en) * 1976-06-17 1977-12-20 Sony Corp Gain changing circuit
JPS5531368A (en) * 1978-08-29 1980-03-05 Fujitsu Ltd Transmission amount control circuit
DE3308824A1 (en) * 1983-03-12 1984-09-13 Eugen Beyer, Elektrotechnische Fabrik GmbH & Co, 7100 Heilbronn Method for amplitude limitation, and a controlled limiter circuit
JPS59171207A (en) * 1984-03-09 1984-09-27 Rohm Co Ltd Automatic level adjusting circuit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4881450A (en) * 1972-02-01 1973-10-31
JPS5549451B2 (en) * 1972-08-30 1980-12-12

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3134600A1 (en) * 1981-09-01 1983-05-26 AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang Drive circuit for a control amplifier
US10658997B2 (en) 2018-08-24 2020-05-19 Rgb Systems, Inc. Energy efficient clip limiting voltage controlled amplifier
EP3624336A3 (en) * 2018-08-24 2020-08-26 RGB Systems, Inc. Energy efficient clip limiting voltage controlled amplifier

Also Published As

Publication number Publication date
SE417148B (en) 1981-02-23
NL165347B (en) 1980-10-15
AU8415975A (en) 1977-02-24
DE2537276C3 (en) 1978-08-24
CA1054711A (en) 1979-05-15
FR2285016B1 (en) 1979-06-15
DE2537276B2 (en) 1977-12-22
FR2285016A1 (en) 1976-04-09
ATA695975A (en) 1978-08-15
JPS5145348U (en) 1976-04-03
SE7510219L (en) 1976-03-15
NL7510729A (en) 1976-03-16
NL165347C (en) 1981-03-16
JPS5515388Y2 (en) 1980-04-09
AT349067B (en) 1979-03-26
DE2537276A1 (en) 1976-04-01

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee