GB1066646A - Improvements relating to magnetrons - Google Patents

Improvements relating to magnetrons

Info

Publication number
GB1066646A
GB1066646A GB28949/64A GB2894964A GB1066646A GB 1066646 A GB1066646 A GB 1066646A GB 28949/64 A GB28949/64 A GB 28949/64A GB 2894964 A GB2894964 A GB 2894964A GB 1066646 A GB1066646 A GB 1066646A
Authority
GB
United Kingdom
Prior art keywords
magnetron
electromagnet
magnetrons
july
control circuit
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
GB28949/64A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1066646A publication Critical patent/GB1066646A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/66—Circuits
    • H05B6/666—Safety circuits
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/10—Magnet systems for directing or deflecting the discharge along a desired path, e.g. a spiral path
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
    • H01J25/52—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode
    • H01J25/58—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode having a number of resonators; having a composite resonator, e.g. a helix
    • H01J25/587—Multi-cavity magnetrons
    • 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
    • H03B9/00—Generation of oscillations using transit-time effects
    • H03B9/01—Generation of oscillations using transit-time effects using discharge tubes
    • H03B9/10—Generation of oscillations using transit-time effects using discharge tubes using a magnetron

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Microwave Tubes (AREA)

Abstract

1,066,646. Magnetrons. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. July 14, 1964 [July 17, 1963], No. 28949/64. Heading H1D. [Also in Division G3] A multi-cavity magnetron 26 has an electromagnet 6 coaxial with the tube and within a surrounding permanent magnet system 30, 31. Yokes 31 and the electromagnet core 32 connect four permanent magnets 30 with the magnetron polepieces 28. A control circuit for stabilizing the direct current drawn by the magnetron (see Division G3) supplies the energizing current of the electromagnet and an auxiliary control circuit is provided for supplying an initial energizing current to the electromagnet when the magnetron is first switched on.
GB28949/64A 1963-07-17 1964-07-14 Improvements relating to magnetrons Expired GB1066646A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL63295449A NL142560B (en) 1963-07-17 1963-07-17 MAGNET RUN GENERATOR FOR HIGH FREQUENCY HEATING.

Publications (1)

Publication Number Publication Date
GB1066646A true GB1066646A (en) 1967-04-26

Family

ID=19754886

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28949/64A Expired GB1066646A (en) 1963-07-17 1964-07-14 Improvements relating to magnetrons

Country Status (10)

Country Link
US (1) US3302060A (en)
AT (1) AT247912B (en)
BE (1) BE650596A (en)
CH (1) CH433462A (en)
DE (1) DE1491382B2 (en)
DK (1) DK116948B (en)
ES (1) ES302122A1 (en)
GB (1) GB1066646A (en)
NL (2) NL142560B (en)
SE (1) SE332239B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3392308A (en) * 1965-05-25 1968-07-09 Varian Associates Crossed field tube having a pair of permanent magnets of different magn etomotive force
FR1557959A (en) * 1967-02-10 1969-02-21
US3523170A (en) * 1967-10-27 1970-08-04 Technology Instr Corp Of Calif Control system for microwave heater apparatus
US3514566A (en) * 1968-08-26 1970-05-26 Raytheon Co Adjustable voltage transformer for microwave oven apparatus
US3614505A (en) * 1969-07-10 1971-10-19 Tokyo Shibaura Electric Co Packaged magnetron
FR2133075A6 (en) * 1971-04-07 1972-11-24 Materiel Telephonique
US4100463A (en) * 1975-11-05 1978-07-11 Hitachi, Ltd. Magnetron, power supply, and fan integral assembly
US4223195A (en) * 1978-08-04 1980-09-16 Robertshaw Controls Company Pulse transformer
JPS6036710B2 (en) * 1980-03-10 1985-08-22 東芝ライテック株式会社 power supply
US4504767A (en) * 1982-09-07 1985-03-12 Litton Systems, Inc. Magnetron mode detector
KR100556609B1 (en) * 2004-02-20 2006-03-06 삼성전자주식회사 Microwave oven

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2296764A (en) * 1939-05-27 1942-09-22 Rca Corp Magnetic flux regulator
US2450629A (en) * 1944-03-14 1948-10-05 Gen Electric Ultra high frequency magnetron generator
US2523684A (en) * 1946-07-13 1950-09-26 Rca Corp Stabilized oscillator system
US2648772A (en) * 1949-02-15 1953-08-11 Raytheon Mfg Co Magnetron control circuits
BE510561A (en) * 1951-04-14
US2979671A (en) * 1959-02-27 1961-04-11 Raytheon Co Magnetron current control systems

Also Published As

Publication number Publication date
CH433462A (en) 1967-04-15
SE332239B (en) 1971-02-01
DE1491382B2 (en) 1972-05-18
ES302122A1 (en) 1965-01-16
DE1491382A1 (en) 1969-04-10
AT247912B (en) 1966-07-11
BE650596A (en) 1965-01-15
DK116948B (en) 1970-03-02
NL142560B (en) 1974-06-17
US3302060A (en) 1967-01-31
NL295449A (en)

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