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FR680521A - Device for amplifying a direct voltage, or a slowly varying voltage, by means of a high-frequency or medium-frequency carrier wave - Google Patents

Device for amplifying a direct voltage, or a slowly varying voltage, by means of a high-frequency or medium-frequency carrier wave

Info

Publication number
FR680521A
FR680521A FR680521DA FR680521A FR 680521 A FR680521 A FR 680521A FR 680521D A FR680521D A FR 680521DA FR 680521 A FR680521 A FR 680521A
Authority
FR
France
Prior art keywords
frequency
amplifying
medium
voltage
carrier wave
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
Other languages
French (fr)
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
Application granted granted Critical
Publication of FR680521A publication Critical patent/FR680521A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/14—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles
    • H03D1/16—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles of discharge tubes
    • 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
    • H03F3/40—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers with tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
FR680521D 1928-09-19 1929-08-20 Device for amplifying a direct voltage, or a slowly varying voltage, by means of a high-frequency or medium-frequency carrier wave Expired FR680521A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL680521X 1928-09-19

Publications (1)

Publication Number Publication Date
FR680521A true FR680521A (en) 1930-05-01

Family

ID=19803322

Family Applications (1)

Application Number Title Priority Date Filing Date
FR680521D Expired FR680521A (en) 1928-09-19 1929-08-20 Device for amplifying a direct voltage, or a slowly varying voltage, by means of a high-frequency or medium-frequency carrier wave

Country Status (4)

Country Link
BE (1) BE363174A (en)
DE (1) DE508173C (en)
FR (1) FR680521A (en)
NL (1) NL28871C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE748167C (en) * 1934-10-28 1944-10-27 Device for influencing regulation and control devices through small direct current voltages
DE968892C (en) * 1937-10-09 1958-04-03 Siemens Ag DC voltage or DC amplifier arrangement for measuring purposes
DE886923C (en) * 1939-05-10 1953-08-17 Aeg DC compensation amplifier
DE744380C (en) * 1941-07-26 1944-05-05 Aeg Arrangement for the transmission of direct voltages over direct voltage impermeable four poles

Also Published As

Publication number Publication date
DE508173C (en) 1930-09-25
BE363174A (en)
NL28871C (en) 1933-01-16

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