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GB644110A - Improvements in or relating to electronic amplifier circuits - Google Patents

Improvements in or relating to electronic amplifier circuits

Info

Publication number
GB644110A
GB644110A GB467248A GB467248A GB644110A GB 644110 A GB644110 A GB 644110A GB 467248 A GB467248 A GB 467248A GB 467248 A GB467248 A GB 467248A GB 644110 A GB644110 A GB 644110A
Authority
GB
United Kingdom
Prior art keywords
transformer
oscillations
auto
relating
amplifier
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
GB467248A
Inventor
Edward George Orme Anderson
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.)
SCOPHONY BAIRD Ltd
Original Assignee
SCOPHONY BAIRD 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 SCOPHONY BAIRD Ltd filed Critical SCOPHONY BAIRD Ltd
Priority to GB467248A priority Critical patent/GB644110A/en
Publication of GB644110A publication Critical patent/GB644110A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
    • H02M3/325—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/33—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using discharge tubes only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/66—Amplifiers simultaneously generating oscillations of one frequency and amplifying signals of another frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

644,110. Converting. SCOPHONY-BAIRD, Ltd. Feb. 17, 1948, No. 4672. [Class 38 (ii)] [Also in Group XL (c)] A D.C. supply, more particularly intended as E.H.T. for the cathode-ray tube of a television receiver, is obtained by causing an amplifier to oscillate at a frequency different from that of its signal input, and rectifying the oscillations. The anode circuit of an audio amplifier 10 comprises an audio transformer 14 in series with the primary of an auto-transformer 11, oscillations being generated by means of a back-coupling winding 18. Grid bias is derived from the grid current in a resistance 19 across which signals are applied to the valve. The alternating voltage across the auto-transformer secondary is rectified by means of a diode 21, the heater of which is supplied from a further winding 23. In another embodiment, Fig. 2 (not shown), the elements of a double triode are connected in parallel for amplification purposes but in pushpull as an oscillator.
GB467248A 1948-02-17 1948-02-17 Improvements in or relating to electronic amplifier circuits Expired GB644110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB467248A GB644110A (en) 1948-02-17 1948-02-17 Improvements in or relating to electronic amplifier circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB467248A GB644110A (en) 1948-02-17 1948-02-17 Improvements in or relating to electronic amplifier circuits

Publications (1)

Publication Number Publication Date
GB644110A true GB644110A (en) 1950-10-04

Family

ID=9781602

Family Applications (1)

Application Number Title Priority Date Filing Date
GB467248A Expired GB644110A (en) 1948-02-17 1948-02-17 Improvements in or relating to electronic amplifier circuits

Country Status (1)

Country Link
GB (1) GB644110A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700104392A1 (en) * 2017-09-19 2019-03-19 Angelo Badini AMPLIFIER / GENERATOR OF WAVEFORMS OF VIBRATIONAL, MAGNETIC AND FREQUENT ENERGY

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700104392A1 (en) * 2017-09-19 2019-03-19 Angelo Badini AMPLIFIER / GENERATOR OF WAVEFORMS OF VIBRATIONAL, MAGNETIC AND FREQUENT ENERGY

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