GB681344A - Improvements relating to apparatus for reducing the distortion of an electronic amplifier - Google Patents

Improvements relating to apparatus for reducing the distortion of an electronic amplifier

Info

Publication number
GB681344A
GB681344A GB2561248A GB2561248A GB681344A GB 681344 A GB681344 A GB 681344A GB 2561248 A GB2561248 A GB 2561248A GB 2561248 A GB2561248 A GB 2561248A GB 681344 A GB681344 A GB 681344A
Authority
GB
United Kingdom
Prior art keywords
distortion
amplifier
voltage
phase
reducing
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
GB2561248A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2561248A priority Critical patent/GB681344A/en
Publication of GB681344A publication Critical patent/GB681344A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

681,344. Valve amplifying circuits. VACKAR, J., and KLIKA, V. Oct. J, 1948, No. 25612/48. Class 40 (vi). An amplifier is provided with a voltage divider connected to the output terminals which supplies a voltage which in the absence of distortion would be equal in amplitude and phase to the input voltage, the difference of these two voltages, consisting of the distortion, being phase-inverted and added to the input. In this way the distortion is reduced without restricting the amplification. As shown, a voltage divider R<SP>1</SP>, R<SP>2</SP> is connected across the output of a resistance-coupled amplifier V<SP>1</SP>, V2, and arranged to provide a potential at point A<SP>1</SP>, differing only by an amount due to the distortion, from the potential at point A, the ratio R<SP>1</SP> + R<SP>2</SP> being equal to the total amplification, R<SP>2</SP> and the distortion is fed back to the grid through a phase-inverting transformer Tr, which may step up the voltage, or through an auxiliary valve, Fig. 5 (not shown). By this means distortion may also be reduced in a two-stage push-pull amplifier, Fig. 2 (not shown), a single stage push-pull amplifier, Fig. 3 (not shown), and a single stage amplifier, Fig. 4 (not shown). Specification 495,943 is referred to.
GB2561248A 1948-10-01 1948-10-01 Improvements relating to apparatus for reducing the distortion of an electronic amplifier Expired GB681344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2561248A GB681344A (en) 1948-10-01 1948-10-01 Improvements relating to apparatus for reducing the distortion of an electronic amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2561248A GB681344A (en) 1948-10-01 1948-10-01 Improvements relating to apparatus for reducing the distortion of an electronic amplifier

Publications (1)

Publication Number Publication Date
GB681344A true GB681344A (en) 1952-10-22

Family

ID=10230497

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2561248A Expired GB681344A (en) 1948-10-01 1948-10-01 Improvements relating to apparatus for reducing the distortion of an electronic amplifier

Country Status (1)

Country Link
GB (1) GB681344A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2927165A (en) * 1955-01-25 1960-03-01 Fairstein Edward Non-blocking stabilized feed back amplifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2927165A (en) * 1955-01-25 1960-03-01 Fairstein Edward Non-blocking stabilized feed back amplifier

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