FR520938A - Improvements to alternating current control modes and devices - Google Patents

Improvements to alternating current control modes and devices

Info

Publication number
FR520938A
FR520938A FR520938A FR520938DA FR520938A FR 520938 A FR520938 A FR 520938A FR 520938 A FR520938 A FR 520938A FR 520938D A FR520938D A FR 520938DA FR 520938 A FR520938 A FR 520938A
Authority
FR
France
Prior art keywords
devices
alternating current
current control
control modes
modes
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
FR520938A
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR520938A publication Critical patent/FR520938A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/08—Amplitude modulation by means of variable impedance element
    • H03C1/10—Amplitude modulation by means of variable impedance element the element being a current-dependent inductor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transmitters (AREA)
  • Mobile Radio Communication Systems (AREA)
FR520938A 1914-11-20 1920-07-22 Improvements to alternating current control modes and devices Expired FR520938A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US87311014A 1914-11-20 1914-11-20
US715723A US1634970A (en) 1914-11-20 1924-05-24 Method of and means for controlling alternating currents

Publications (1)

Publication Number Publication Date
FR520938A true FR520938A (en) 1921-07-04

Family

ID=27109412

Family Applications (1)

Application Number Title Priority Date Filing Date
FR520938A Expired FR520938A (en) 1914-11-20 1920-07-22 Improvements to alternating current control modes and devices

Country Status (4)

Country Link
US (1) US1634970A (en)
DE (1) DE308202C (en)
FR (1) FR520938A (en)
NL (1) NL12723C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973734C (en) * 1952-05-02 1960-05-25 Foxboro Co Amplifier for a fluid meter

Also Published As

Publication number Publication date
NL12723C (en) 1900-01-01
DE308202C (en)
US1634970A (en) 1927-07-05

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