GB239242A - Improvements in or relating to frequency changers for electric currents - Google Patents

Improvements in or relating to frequency changers for electric currents

Info

Publication number
GB239242A
GB239242A GB21795/25A GB2179525A GB239242A GB 239242 A GB239242 A GB 239242A GB 21795/25 A GB21795/25 A GB 21795/25A GB 2179525 A GB2179525 A GB 2179525A GB 239242 A GB239242 A GB 239242A
Authority
GB
United Kingdom
Prior art keywords
frequency
generator
direct current
current
frequencies
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
GB21795/25A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Publication of GB239242A publication Critical patent/GB239242A/en
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

239,242. Telefunken Ges. f³r Drahtlose Telegraphie. Aug. 30, 1924, [Convention date]. Frequency, changing.-In means for obtaining alternating current of a lower frequency from a source of higher frequency current by the use of iron-cored static transformers, a plurality of circuits arranged on a common core are made of such a character that their natural frequencies are related to each other by a straight line law. In the arrangement shown in Fig. 1 in which the core is magnetized by a direct current, winding, the frequency of the generator circuit w is equal to the sum of the natural frequencies of the circuits w1 and w2. When direct current magnetisation is not employed, the frequency relationship w1+2w2=w may be obtained. When the frequency w1 is only slightly less than the generator frequency w, w2 may be a beat frequency. The Specification as open to inspection under Sect. 91 (3) (a) also states that the frequencies w and w1 may be obtained in a single circuit tuned to the frequency w1 but acted upon by the. generator oscillations of frequency w. This subject-matter does not appear in the Specification as accepted.
GB21795/25A 1924-08-30 1925-08-31 Improvements in or relating to frequency changers for electric currents Expired GB239242A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE239242X 1924-08-30

Publications (1)

Publication Number Publication Date
GB239242A true GB239242A (en) 1926-06-10

Family

ID=5903810

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21795/25A Expired GB239242A (en) 1924-08-30 1925-08-31 Improvements in or relating to frequency changers for electric currents

Country Status (1)

Country Link
GB (1) GB239242A (en)

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