GB714146A - Device for frequency doubling by means of premagnetised inductances - Google Patents

Device for frequency doubling by means of premagnetised inductances

Info

Publication number
GB714146A
GB714146A GB10974/50A GB1097450A GB714146A GB 714146 A GB714146 A GB 714146A GB 10974/50 A GB10974/50 A GB 10974/50A GB 1097450 A GB1097450 A GB 1097450A GB 714146 A GB714146 A GB 714146A
Authority
GB
United Kingdom
Prior art keywords
windings
inductances
frequency
direct current
phase supply
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
GB10974/50A
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB714146A publication Critical patent/GB714146A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/02—Adaptations of transformers or inductances for specific applications or functions for non-linear operation
    • H01F38/04—Adaptations of transformers or inductances for specific applications or functions for non-linear operation for frequency changing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
    • H03B19/03—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source using non-linear inductance

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ac-Ac Conversion (AREA)

Abstract

714,146. Changing frequency; changing number of phases. LICENTIA PATENTVERWALTUNGS-GES. May 3,1950 [Oct. 1, 1948], No. 10974/50. Class 38(2) A frequency doubling circuit arrangement of the type comprising two sets of premagnetized inductances, has the primary windings thereof connected in such fashion that, on the one hand, a balanced load is presented to a multi-phase supply system and, on the other hand, the sum of the doubled frequency voltage induced in the direct current windings is zero. The primary windings P1, P2, P1<SP>1</SP>, P2' of two sets of inductances I, II, are connected in Scott fashion to a three-phase supply, an inductive potentiometer P being used to produce a tapping point for such connection. The direct current windings G1, G2, G1<SP>1</SP>, G2<SP>1</SP> are all connected in series to a direct current source B, the series connections being such that, whilst the secondary windings A1<SP>1</SP>, A2<SP>1</SP> are connected in the same sense as the D.C. windings G1<SP>1</SP>, G2', the secondary windings A1, A2 are connected in the opposite sense to the D.C. windings G1, G2, the windings A being all connected in series giving an output of frequency double that of the three-phase supply. The power factor of the arrangement may be improved by the use of a condenser C. The inductive potentiometer P may be dispensed with by suitable arranging the primary windings of one set of inductances. Further the secondary windings of each set of windings may be connected in parallel to the load. Regulation may be effected by variation in the direct saturating current.
GB10974/50A 1948-10-01 1950-05-03 Device for frequency doubling by means of premagnetised inductances Expired GB714146A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE714146X 1948-10-01

Publications (1)

Publication Number Publication Date
GB714146A true GB714146A (en) 1954-08-25

Family

ID=6624873

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10974/50A Expired GB714146A (en) 1948-10-01 1950-05-03 Device for frequency doubling by means of premagnetised inductances

Country Status (1)

Country Link
GB (1) GB714146A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2927260A (en) * 1955-12-28 1960-03-01 Noah S Prywes Static frequency-changing systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2927260A (en) * 1955-12-28 1960-03-01 Noah S Prywes Static frequency-changing systems

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