CA1001727A - Variable attenuating circuit - Google Patents

Variable attenuating circuit

Info

Publication number
CA1001727A
CA1001727A CA203,135A CA203135A CA1001727A CA 1001727 A CA1001727 A CA 1001727A CA 203135 A CA203135 A CA 203135A CA 1001727 A CA1001727 A CA 1001727A
Authority
CA
Canada
Prior art keywords
attenuating circuit
variable attenuating
variable
circuit
attenuating
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
CA203,135A
Other languages
English (en)
Other versions
CA203135S (en
Inventor
Shunzo Oka
Takehide Takemura
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of CA1001727A publication Critical patent/CA1001727A/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
    • H03G1/0052—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/02—Remote control of amplification, tone or bandwidth
CA203,135A 1973-06-21 1974-06-21 Variable attenuating circuit Expired CA1001727A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7019073A JPS572209B2 (de) 1973-06-21 1973-06-21

Publications (1)

Publication Number Publication Date
CA1001727A true CA1001727A (en) 1976-12-14

Family

ID=13424345

Family Applications (1)

Application Number Title Priority Date Filing Date
CA203,135A Expired CA1001727A (en) 1973-06-21 1974-06-21 Variable attenuating circuit

Country Status (4)

Country Link
US (1) US3902077A (de)
JP (1) JPS572209B2 (de)
CA (1) CA1001727A (de)
DE (1) DE2429374B2 (de)

Families Citing this family (9)

* 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
NL7700809A (nl) * 1977-01-27 1978-07-31 Philips Nv Schakeling waarvan een eerste deel binnen een monolithisch geintegreerd halfgeleiderlichaam opgenomen is.
DE3010095C2 (de) * 1980-03-15 1982-10-07 Rohde & Schwarz GmbH & Co KG, 8000 München Regelbarer Transistor-Wechselspannungs-Differenzverstärker
JPH0237098U (de) * 1988-08-31 1990-03-12
JPH08256U (ja) * 1995-08-02 1996-02-06 ファナック株式会社 レーザ共振器
GB2334838B (en) * 1998-02-26 2002-11-27 Mitel Semiconductor Ltd Variable attenuator circuit
US5966051A (en) * 1998-04-21 1999-10-12 Conexant Systems, Inc. Low voltage medium power class C power amplifier with precise gain control
GB2379567B (en) * 2001-08-30 2003-09-10 Zarlink Semiconductor Ltd Controllable attenuator
JP2017139719A (ja) * 2016-02-05 2017-08-10 正仁 櫨田 機械的駆動部分の無いボリューム回路

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3562660A (en) * 1967-12-26 1971-02-09 Teledyne Inc Operational amplifier
US3689752A (en) * 1970-04-13 1972-09-05 Tektronix Inc Four-quadrant multiplier circuit
US3717821A (en) * 1972-02-11 1973-02-20 Rca Corp Circuit for minimizing the signal currents drawn by the input stage of an amplifier

Also Published As

Publication number Publication date
DE2429374B2 (de) 1976-11-11
JPS572209B2 (de) 1982-01-14
DE2429374A1 (de) 1975-01-09
JPS5020638A (de) 1975-03-05
US3902077A (en) 1975-08-26

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