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GB511095A - Improvements in circuit arrangements for the variation of the transmission properties of an electrical circuit by means of a control voltage - Google Patents

Improvements in circuit arrangements for the variation of the transmission properties of an electrical circuit by means of a control voltage

Info

Publication number
GB511095A
GB511095A GB21830/38A GB2183038A GB511095A GB 511095 A GB511095 A GB 511095A GB 21830/38 A GB21830/38 A GB 21830/38A GB 2183038 A GB2183038 A GB 2183038A GB 511095 A GB511095 A GB 511095A
Authority
GB
United Kingdom
Prior art keywords
variation
control voltage
circuit
transmission properties
electrical circuit
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
GB21830/38A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB511095A publication Critical patent/GB511095A/en
Expired 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/18—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/48—Amplitude modulation by means of Hall-effect devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/38—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H03G5/04—Manually-operated control in untuned amplifiers
    • H03G5/10—Manually-operated control in untuned amplifiers having semiconductor devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
GB21830/38A 1937-11-25 1938-07-22 Improvements in circuit arrangements for the variation of the transmission properties of an electrical circuit by means of a control voltage Expired GB511095A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH511095X 1937-11-25

Publications (1)

Publication Number Publication Date
GB511095A true GB511095A (en) 1939-08-14

Family

ID=4517435

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21830/38A Expired GB511095A (en) 1937-11-25 1938-07-22 Improvements in circuit arrangements for the variation of the transmission properties of an electrical circuit by means of a control voltage

Country Status (1)

Country Link
GB (1) GB511095A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE932249C (en) * 1949-05-21 1955-08-29 Siemens Ag Arrangement for volume control in radio receivers, amplifier systems or the like.
DE1116746B (en) * 1958-08-22 1961-11-09 Standard Elektrik Lorenz Ag Automatic control circuit for intermediate frequency amplifiers with a large bandwidth
DE1150118B (en) * 1959-04-30 1963-06-12 Bendix Corp DC amplifier arrangement
DE1152191B (en) * 1961-07-21 1963-08-01 Siemens Ag Resonant circuit amplifier in compensation circuit
DE1167401B (en) * 1959-08-14 1964-04-09 Telefunken Patent Tuned transistor amplifier for high frequencies with automatic gain control
DE1273612B (en) * 1964-06-11 1968-07-25 Siemens Ag Albis Circuit arrangement for the electronic regulation of the amplitude of a high-frequency signal and use of the circuit arrangement in a monopulse radar device
CN109613339A (en) * 2019-01-28 2019-04-12 南京邮电大学 A multifunctional resistance measuring device and measuring method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE932249C (en) * 1949-05-21 1955-08-29 Siemens Ag Arrangement for volume control in radio receivers, amplifier systems or the like.
DE1116746B (en) * 1958-08-22 1961-11-09 Standard Elektrik Lorenz Ag Automatic control circuit for intermediate frequency amplifiers with a large bandwidth
DE1150118B (en) * 1959-04-30 1963-06-12 Bendix Corp DC amplifier arrangement
DE1167401B (en) * 1959-08-14 1964-04-09 Telefunken Patent Tuned transistor amplifier for high frequencies with automatic gain control
DE1152191B (en) * 1961-07-21 1963-08-01 Siemens Ag Resonant circuit amplifier in compensation circuit
DE1273612B (en) * 1964-06-11 1968-07-25 Siemens Ag Albis Circuit arrangement for the electronic regulation of the amplitude of a high-frequency signal and use of the circuit arrangement in a monopulse radar device
CN109613339A (en) * 2019-01-28 2019-04-12 南京邮电大学 A multifunctional resistance measuring device and measuring method

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