GB989394A - Improvements in or relating to transistor oscillators - Google Patents

Improvements in or relating to transistor oscillators

Info

Publication number
GB989394A
GB989394A GB2658/63A GB265863A GB989394A GB 989394 A GB989394 A GB 989394A GB 2658/63 A GB2658/63 A GB 2658/63A GB 265863 A GB265863 A GB 265863A GB 989394 A GB989394 A GB 989394A
Authority
GB
United Kingdom
Prior art keywords
primary
coupling
winding
tuned
relating
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
GB2658/63A
Inventor
Harry Donald Kitchin
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co Ltd
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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB2658/63A priority Critical patent/GB989394A/en
Publication of GB989394A publication Critical patent/GB989394A/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
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
    • 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
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1203—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier being a single transistor
    • 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
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1296—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the feedback circuit comprising a transformer

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

989,394. Transistor oscillator circuits; tuned coupling networks. MARCONI CO. Ltd. Nov. 5, 1963 [Jan. 22, 1963], No. 2658/63. Headings H3T and H3U. [Also in Division H1] In a transistor oscillator of the type comprising a regenerative feedback transformer having a tuned tertiary winding 2, direct coupling between the primary and secondary windings is cancelled by an additional winding. This may be connected to the primary winding but, as shown, is connected in series with the secondary in the reverse sense so that the net direct-coupling between primary and secondary circuits is zero or in negative sense. Suitable constructional arrangements of the transformer using air or tubular ferromagnetic cores are illustrated (Figs. 4 and 5, not shown).
GB2658/63A 1963-01-22 1963-01-22 Improvements in or relating to transistor oscillators Expired GB989394A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2658/63A GB989394A (en) 1963-01-22 1963-01-22 Improvements in or relating to transistor oscillators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2658/63A GB989394A (en) 1963-01-22 1963-01-22 Improvements in or relating to transistor oscillators

Publications (1)

Publication Number Publication Date
GB989394A true GB989394A (en) 1965-04-14

Family

ID=9743466

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2658/63A Expired GB989394A (en) 1963-01-22 1963-01-22 Improvements in or relating to transistor oscillators

Country Status (1)

Country Link
GB (1) GB989394A (en)

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