GB811351A - Improvements in or relating to high frequency transformers - Google Patents

Improvements in or relating to high frequency transformers

Info

Publication number
GB811351A
GB811351A GB894655A GB894655A GB811351A GB 811351 A GB811351 A GB 811351A GB 894655 A GB894655 A GB 894655A GB 894655 A GB894655 A GB 894655A GB 811351 A GB811351 A GB 811351A
Authority
GB
United Kingdom
Prior art keywords
valve
cathode
cables
pulses
transformer
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
GB894655A
Inventor
Ian Alexander Darroch Lewis
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB894655A priority Critical patent/GB811351A/en
Publication of GB811351A publication Critical patent/GB811351A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F19/00—Fixed transformers or mutual inductances of the signal type
    • H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
    • H01F19/08—Transformers having magnetic bias, e.g. for handling pulses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F19/00—Fixed transformers or mutual inductances of the signal type
    • H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
    • H01F19/08—Transformers having magnetic bias, e.g. for handling pulses
    • H01F2019/085—Transformer for galvanic isolation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2823—Wires
    • H01F2027/2833—Wires using coaxial cable as wire

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

811,351. Valve amplifier circuits. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 22, 1956 [March 28, 1955]. No. 8946/55. Class 40 (6). [Also in Group XL (b)] A wide-band video amplifier circuit comprises a triode valve 28 to the cathode of which video pulses of a radar system are fed, and from which pulses pass to the cathode of an earthed-grid triode valve 32 via a high-frequency transformer comprising coaxial cables 26, 27, and reducing the pulse voltage (see Group XL (b)). The anode of the valve 28 is connected to the inner conductor of the cable 26, and the grid is connected to the earthed outer conductor or the cable 27, the input ends of the cables 26, 27 being connected in series, and the output ends in parallel. The cables 26, 27 feed the pulses to the cathode of the valve 32 via a transformer isolating the cathode heater, and as described in Specification 811,352, and comprising coaxial cables 33, 34, and a core 39 carrying a primary winding 40. Pulses are passed from the cables 26, 27 to the cables 33, 34 via condensers 35, 36, 37, 38, segregating the direct current supplies of the valves 28, 32, and are fed to the cathode of the valve 32 via condensers 41, 42. The cathode heater is energized by a loop comprising the inner conductors of the cables 33, 34 and forming the secondary winding of the heater isolating transformer. The input pulses to the valve 28 may also be fed through a similar transformer for isolating the cathode heater.
GB894655A 1955-03-28 1955-03-28 Improvements in or relating to high frequency transformers Expired GB811351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB894655A GB811351A (en) 1955-03-28 1955-03-28 Improvements in or relating to high frequency transformers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB894655A GB811351A (en) 1955-03-28 1955-03-28 Improvements in or relating to high frequency transformers

Publications (1)

Publication Number Publication Date
GB811351A true GB811351A (en) 1959-04-02

Family

ID=9862381

Family Applications (1)

Application Number Title Priority Date Filing Date
GB894655A Expired GB811351A (en) 1955-03-28 1955-03-28 Improvements in or relating to high frequency transformers

Country Status (1)

Country Link
GB (1) GB811351A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262121A (en) * 1963-05-06 1966-07-19 Collins Radio Co Antenna feed point crossover
US3428886A (en) * 1965-04-15 1969-02-18 Fujitsu Ltd Broad frequency band transformer
US3614676A (en) * 1969-08-15 1971-10-19 Sylvania Electric Prod Broadband impedance-matching transformer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262121A (en) * 1963-05-06 1966-07-19 Collins Radio Co Antenna feed point crossover
US3428886A (en) * 1965-04-15 1969-02-18 Fujitsu Ltd Broad frequency band transformer
US3614676A (en) * 1969-08-15 1971-10-19 Sylvania Electric Prod Broadband impedance-matching transformer

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