GB884365A - Improvements relating to electronic amplifiers - Google Patents

Improvements relating to electronic amplifiers

Info

Publication number
GB884365A
GB884365A GB1610857A GB1610857A GB884365A GB 884365 A GB884365 A GB 884365A GB 1610857 A GB1610857 A GB 1610857A GB 1610857 A GB1610857 A GB 1610857A GB 884365 A GB884365 A GB 884365A
Authority
GB
United Kingdom
Prior art keywords
stages
resistors
cathode
common
resistor
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
GB1610857A
Inventor
Philip Lester Taylor
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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
Priority to NL227944D priority Critical patent/NL227944A/xx
Priority to BE567914D priority patent/BE567914A/xx
Application filed by Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB1610857A priority patent/GB884365A/en
Priority to FR1206895D priority patent/FR1206895A/en
Publication of GB884365A publication Critical patent/GB884365A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/26—Push-pull amplifiers; Phase-splitters therefor
    • H03F3/28—Push-pull amplifiers; Phase-splitters therefor with tubes only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/26—Push-pull amplifiers; Phase-splitters therefor
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Amplifiers (AREA)

Abstract

884,365. Valve and transistor amplifying circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 14, 1958 [May 21, 1957], No. 16108/57. Class 40(6). A direct-coupled amplifier employing valves or transistors comprises two similar channels each comprising a plurality of direct-coupled amplifying stages (e.g. V1, V3, V5 and V2, V4, V6) in which certain corresponding stages are coupled together by resistors connected in common to their cathode or emitter electrodes and is provided with negative feedback from the junction point of two equal resistors R connected between the two output terminals to the common cathode or emitter resistor of the first pair of stages through a a cathode follower or emitter follower (e.g. V7) of which the load resistor is the common resistor of the first pair of stages. Thus in the valve circuit shown the common cathode resistors reduce the unbalanced components of the input signals e<SP>1</SP>, e<SP>11</SP> and these are further reduced by feeding back the sum of the output signals E<SP>1</SP>, E<SP>11</SP> from the junction point of the resistors R. The balanced components however are not so attenuated so that equal and opposite output signals E<SP>1</SP>, E<SP>11</SP> are obtained corresponding to the balanced components in the input signals e<SP>1</SP>, e<SP>11</SP>. A circuit in which the valves are replaced by equivalently connected transistors is illustrated in Fig. 5 (not shown).
GB1610857A 1957-05-21 1957-05-21 Improvements relating to electronic amplifiers Expired GB884365A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL227944D NL227944A (en) 1957-05-21
BE567914D BE567914A (en) 1957-05-21
GB1610857A GB884365A (en) 1957-05-21 1957-05-21 Improvements relating to electronic amplifiers
FR1206895D FR1206895A (en) 1957-05-21 1958-05-21 Improvements to electronic amplifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1610857A GB884365A (en) 1957-05-21 1957-05-21 Improvements relating to electronic amplifiers

Publications (1)

Publication Number Publication Date
GB884365A true GB884365A (en) 1961-12-13

Family

ID=10071339

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1610857A Expired GB884365A (en) 1957-05-21 1957-05-21 Improvements relating to electronic amplifiers

Country Status (4)

Country Link
BE (1) BE567914A (en)
FR (1) FR1206895A (en)
GB (1) GB884365A (en)
NL (1) NL227944A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371286A (en) * 1964-08-27 1968-02-27 United Aircraft Corp Stabilized direct-coupled push-pull amplifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371286A (en) * 1964-08-27 1968-02-27 United Aircraft Corp Stabilized direct-coupled push-pull amplifier

Also Published As

Publication number Publication date
FR1206895A (en) 1960-02-12
BE567914A (en)
NL227944A (en)

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