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SE8601358L - POWER SUPPLY FOR A HEATING DEVICE FOR A MAGNET - Google Patents

POWER SUPPLY FOR A HEATING DEVICE FOR A MAGNET

Info

Publication number
SE8601358L
SE8601358L SE8601358A SE8601358A SE8601358L SE 8601358 L SE8601358 L SE 8601358L SE 8601358 A SE8601358 A SE 8601358A SE 8601358 A SE8601358 A SE 8601358A SE 8601358 L SE8601358 L SE 8601358L
Authority
SE
Sweden
Prior art keywords
power supply
regulating means
magnet
power
heating device
Prior art date
Application number
SE8601358A
Other languages
Swedish (sv)
Other versions
SE8601358D0 (en
Inventor
R L Sinclair
Original Assignee
Ferranti Plc
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 Ferranti Plc filed Critical Ferranti Plc
Publication of SE8601358D0 publication Critical patent/SE8601358D0/en
Publication of SE8601358L publication Critical patent/SE8601358L/en

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
    • 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)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Microwave Tubes (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)

Abstract

The power supply includes a source 23 of alternating voltage connected to the heater 22 of the magnetron 20 and regulating means 24 connected in series with the source 23. The regulating means is arranged to control the number of half-cycles of the alternating voltage of one polarity which are applied to the heater 22 during a predetermined time interval, whilst applying all half- cycles of the opposite polarity. Control means 25 apply a control signal to the regulating means 24 in accordance with the required duty ratio of the magnetron. A voltage correction networks 26, 27 corrects, for the fact that the power in the half-cycle waveform is not half of the power in the full waveform. <IMAGE>
SE8601358A 1985-03-29 1986-03-24 POWER SUPPLY FOR A HEATING DEVICE FOR A MAGNET SE8601358L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08508328A GB2173062A (en) 1985-03-29 1985-03-29 Magnetron heater power supply

Publications (2)

Publication Number Publication Date
SE8601358D0 SE8601358D0 (en) 1986-03-24
SE8601358L true SE8601358L (en) 1986-09-30

Family

ID=10576928

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8601358A SE8601358L (en) 1985-03-29 1986-03-24 POWER SUPPLY FOR A HEATING DEVICE FOR A MAGNET

Country Status (5)

Country Link
DE (1) DE3609470A1 (en)
FR (1) FR2579822B1 (en)
GB (1) GB2173062A (en)
IT (1) IT1190245B (en)
SE (1) SE8601358L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4136879C2 (en) * 1991-11-09 1993-10-28 Ant Nachrichtentech Tubes heated by an AC transformer
DE4328557C1 (en) * 1993-08-25 1994-09-29 Ant Nachrichtentech Method for compensating for ageing phenomena of a tube and an arrangement

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2563740A (en) * 1947-12-05 1951-08-07 Louis W Parker Filament power supply system for radio receivers
FR1413460A (en) * 1963-11-01 1965-10-08 Thomson Houston Comp Francaise Improvements to power supplies for thermionic emission devices
GB1235683A (en) * 1967-11-07 1971-06-16 Diamond H Controls Ltd A.c. power control
GB1323551A (en) * 1969-04-16 1973-07-18 Hirst Electric Ind Ltd Control circuits
FR2428914A1 (en) * 1978-06-13 1980-01-11 Thomson Csf CATHODE HEATING DEVICE FOR ELECTRONIC POWER TUBE AND TRANSMITTER COMPRISING SUCH A DEVICE
GB2080050A (en) * 1980-07-02 1982-01-27 Quisear Ltd Reduction of electrical power consumption
US4464611A (en) * 1983-08-22 1984-08-07 Rca Corporation Line cathode heating and protection circuit

Also Published As

Publication number Publication date
DE3609470A1 (en) 1986-10-09
GB8508328D0 (en) 1985-05-09
SE8601358D0 (en) 1986-03-24
FR2579822A1 (en) 1986-10-03
FR2579822B1 (en) 1989-04-28
GB2173062A (en) 1986-10-01
IT1190245B (en) 1988-02-16
IT8647829A0 (en) 1986-03-27

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