AU6555080A - Amplifier with temperature dependant negative feedback - Google Patents

Amplifier with temperature dependant negative feedback

Info

Publication number
AU6555080A
AU6555080A AU65550/80A AU6555080A AU6555080A AU 6555080 A AU6555080 A AU 6555080A AU 65550/80 A AU65550/80 A AU 65550/80A AU 6555080 A AU6555080 A AU 6555080A AU 6555080 A AU6555080 A AU 6555080A
Authority
AU
Australia
Prior art keywords
amplifier
negative feedback
temperature dependant
dependant
temperature
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.)
Abandoned
Application number
AU65550/80A
Inventor
Bernhard Rall
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of AU6555080A publication Critical patent/AU6555080A/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
    • H03F3/45484—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with bipolar transistors as the active amplifying circuit
    • H03F3/45488—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with bipolar transistors as the active amplifying circuit by using feedback means
    • H03F3/45493—Measuring at the loading circuit of the differential amplifier
    • H03F3/45511—Controlling the loading circuit of the differential amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
    • H03F3/45484—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with bipolar transistors as the active amplifying circuit
    • H03F3/45596—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with bipolar transistors as the active amplifying circuit by offset reduction
    • H03F3/456—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with bipolar transistors as the active amplifying circuit by offset reduction by using a feedback circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/76—Compensating for differences in line impedance
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45008—Indexing scheme relating to differential amplifiers the addition of two signals being made by a resistor addition circuit for producing the common mode signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45066—Indexing scheme relating to differential amplifiers the resulting deducted common mode signal being added at the one or more inputs of the differential amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45068—Indexing scheme relating to differential amplifiers the resulting deducted common mode signal being added at the one or more outputs of the differential amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45082—Indexing scheme relating to differential amplifiers the common mode signal being taken or deducted from the one or more outputs of the differential amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
AU65550/80A 1979-12-19 1980-12-19 Amplifier with temperature dependant negative feedback Abandoned AU6555080A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29510245 1979-12-19
DE19792951024 DE2951024A1 (en) 1979-12-19 1979-12-19 AMPLIFIER CIRCUIT

Publications (1)

Publication Number Publication Date
AU6555080A true AU6555080A (en) 1981-06-25

Family

ID=6088861

Family Applications (1)

Application Number Title Priority Date Filing Date
AU65550/80A Abandoned AU6555080A (en) 1979-12-19 1980-12-19 Amplifier with temperature dependant negative feedback

Country Status (3)

Country Link
EP (1) EP0032533A1 (en)
AU (1) AU6555080A (en)
DE (1) DE2951024A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1240671B (en) * 1990-03-01 1993-12-17 Sos-Thomson Microelectronics MICROPHONE PREAMPLIFIER BALANCED IN CMOS TECHNOLOGY
EP0901058A1 (en) * 1991-10-30 1999-03-10 Harris Corporation Two stage current mirror
FR2757586B1 (en) 1996-12-23 1999-02-26 Valeo TORSION DAMPER AND DAMPING DEVICE EQUIPPED WITH SUCH A TORSION DAMPER
US6028478A (en) * 1998-07-13 2000-02-22 Philips Electronics North America Corporation Converter circuit and variable gain amplifier with temperature compensation
EP1537654A1 (en) 2002-08-19 2005-06-08 Koninklijke Philips Electronics N.V. Operational amplifier
WO2011001195A1 (en) * 2009-06-29 2011-01-06 Nokia Corporation Temperature compensated microphone
DE102019128498A1 (en) * 2019-10-22 2021-04-22 Avantgarde Acoustic Lautsprechersysteme Gmbh Amplifier circuit with variable current source
CN116265846A (en) * 2021-12-17 2023-06-20 青岛海尔电冰箱有限公司 Refrigerating and freezing device and control method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1283172A (en) * 1970-05-13 1972-07-26 Iwatsu Electric Co Ltd Direct-current amplifying circuit
DE2319784C3 (en) * 1973-04-18 1975-10-02 Siemens Ag, 1000 Berlin Und 8000 Muenchen Pilot-controlled carrier frequency line amplifier
US3845404A (en) * 1972-06-16 1974-10-29 T Trilling Differential amplifier having active feedback circuitry
DE2931525C2 (en) * 1979-08-03 1986-08-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Circuit arrangement for stabilizing the DC operating point of a differential amplifier

Also Published As

Publication number Publication date
DE2951024A1 (en) 1981-06-25
EP0032533A1 (en) 1981-07-29
DE2951024C2 (en) 1988-05-19

Similar Documents

Publication Publication Date Title
AU5006979A (en) Cart
AU537639B2 (en) Power amplifier biasing
GB2062995B (en) Negative feedback amplifying circuit
AU510578B2 (en) Feedforward amplifier
DE3069024D1 (en) Gain controlled amplifier
AU5867680A (en) Integrator with time constant control
AU6555080A (en) Amplifier with temperature dependant negative feedback
JPS5694809A (en) Power amplifier
AU532842B2 (en) Alkoxybenzyl pyridopyrimioines
AU528102B2 (en) Amplifier with non linear feedback
AU5626580A (en) Temperature compensated biasine
GB2034546B (en) Transistor amplifier with variable gain
AU6444780A (en) Complementary symmetry amplifier
AU5537080A (en) Amplifier
AU512135B2 (en) Loudspeaker system with feedback
DE3061954D1 (en) Differential amplifier with feedback
AU5796480A (en) Negative current feedback amplifier
AU537711B2 (en) Variable gain differential amplifier
AU514769B2 (en) Microwave amplifier
AU534108B2 (en) Regulator with independent feedback path filter
AU5977286A (en) Cascaded operational amplifier with negative feedback
AU5467880A (en) Wheelbarrow
AU512146B2 (en) Negative feedback amplifier
AU535779B2 (en) Amplifier with optical isolator in feedback path
AU524983B2 (en) Wide band amplifier with negative feedback