GB1321854A - Power supply unit for a magnetron oscillator - Google Patents

Power supply unit for a magnetron oscillator

Info

Publication number
GB1321854A
GB1321854A GB4159570A GB4159570A GB1321854A GB 1321854 A GB1321854 A GB 1321854A GB 4159570 A GB4159570 A GB 4159570A GB 4159570 A GB4159570 A GB 4159570A GB 1321854 A GB1321854 A GB 1321854A
Authority
GB
United Kingdom
Prior art keywords
winding
secondary winding
halves
centre leg
leg
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
GB4159570A
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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
Priority claimed from JP44069475A external-priority patent/JPS5040205B1/ja
Priority claimed from JP44069474A external-priority patent/JPS4910209B1/ja
Priority claimed from JP6947269A external-priority patent/JPS5313825B1/ja
Priority claimed from JP45023860A external-priority patent/JPS5129364B1/ja
Priority claimed from JP1970027165U external-priority patent/JPS5122569Y1/ja
Priority claimed from JP2716170U external-priority patent/JPS5122568Y1/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1321854A publication Critical patent/GB1321854A/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
    • H05B6/662—Aspects related to the boost transformer of the microwave heating apparatus
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F2038/003—High frequency transformer for microwave oven

Abstract

1321854 Transformers MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 28 Aug 1970 [29 Aug 1969 (3) 20 March 1970 (3)] 41595/70 Heading HIT [Also in Division H2] A transformer used to supply the operating voltages of a magnetron comprises a magnetic core 105 having three legs, the primary winding being in two halves 101, 101<SP>1</SP> and arranged on the two outer legs, one secondary winding 102 being arranged on the centre leg and a further secondary winding 103 being arranged on one of the yokes together with magnetic shunts 106 between the primary and secondary windings. Initially the two halves of the primary winding are connected to produce fluxes # 1 , #<SP>1</SP> which are in opposition in the centre leg of the core thus no output voltage is induced in the secondary winding 102 although an output voltage is induced in the secondary winding 103 by the flux # 1 (see Fig. 12). When operation of the magnetron is required the halves 101, 101<SP>1</SP> of the primary winding are connected so as to produce fluxes # 1 , #<SP>1</SP> 1 which aid each other in the centre leg (see Fig. 11). Thus an output voltage is produced in the secondary winding 102, with the flux # 1 still producing an output in the winding 103. The fluxes # 2 , #<SP>1</SP> 2 caused by the load current in the winding 102 flow through the magnetic shunts 106. In the embodiment shown in Fig. 9 the magnetic core is in a cruciform shape with all the windings on the centre leg with the secondary winding 102 in two series connected halves, one on each side of the leg dividing the centre leg. If desired a further secondary winding may be placed on the centre leg and this winding may, if desired be an extension of the secondary winding 102.
GB4159570A 1969-08-29 1970-08-28 Power supply unit for a magnetron oscillator Expired GB1321854A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP44069475A JPS5040205B1 (en) 1969-08-29 1969-08-29
JP44069474A JPS4910209B1 (en) 1969-08-29 1969-08-29
JP6947269A JPS5313825B1 (en) 1969-08-29 1969-08-29
JP45023860A JPS5129364B1 (en) 1970-03-20 1970-03-20
JP1970027165U JPS5122569Y1 (en) 1970-03-20 1970-03-20
JP2716170U JPS5122568Y1 (en) 1970-03-20 1970-03-20

Publications (1)

Publication Number Publication Date
GB1321854A true GB1321854A (en) 1973-07-04

Family

ID=27549128

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4159570A Expired GB1321854A (en) 1969-08-29 1970-08-28 Power supply unit for a magnetron oscillator

Country Status (4)

Country Link
CA (1) CA923557A (en)
DE (1) DE2042843C3 (en)
FR (1) FR2059435A5 (en)
GB (1) GB1321854A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019096538A1 (en) * 2017-11-16 2019-05-23 Arcelik Anonim Sirketi A supply circuit
CN113424278A (en) * 2019-02-07 2021-09-21 Lg 伊诺特有限公司 Transformer and DC-DC converter including the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019096538A1 (en) * 2017-11-16 2019-05-23 Arcelik Anonim Sirketi A supply circuit
CN113424278A (en) * 2019-02-07 2021-09-21 Lg 伊诺特有限公司 Transformer and DC-DC converter including the same

Also Published As

Publication number Publication date
FR2059435A5 (en) 1971-05-28
DE2042843C3 (en) 1973-12-06
DE2042843B2 (en) 1973-04-05
CA923557A (en) 1973-03-27
DE2042843A1 (en) 1971-03-11

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years