JPS5469002A - Power supply unit for magnetron - Google Patents

Power supply unit for magnetron

Info

Publication number
JPS5469002A
JPS5469002A JP13605477A JP13605477A JPS5469002A JP S5469002 A JPS5469002 A JP S5469002A JP 13605477 A JP13605477 A JP 13605477A JP 13605477 A JP13605477 A JP 13605477A JP S5469002 A JPS5469002 A JP S5469002A
Authority
JP
Japan
Prior art keywords
magnetron
power supply
rectified
duty cycle
winding
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.)
Pending
Application number
JP13605477A
Other languages
Japanese (ja)
Inventor
Yoshinosuke Nagata
Kazuyoshi Tsukamoto
Takao Nakatsuka
Kazufumi Ushijima
Tatsuhiro Nagai
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP13605477A priority Critical patent/JPS5469002A/en
Publication of JPS5469002A publication Critical patent/JPS5469002A/en
Pending legal-status Critical Current

Links

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  • Control Of High-Frequency Heating Circuits (AREA)

Abstract

PURPOSE: To ensure the steady supply of the power by securing the automatic gradual increase for the duty cycle of the base current waveform of the switching transistor at the starting time of the magnetron.
CONSTITUTION: The commercial frequency power supply of terminal a and a' is rectified (1) to be then applied to primary winding 41 of boosting transformer 4, and switching transistor TR5 intermits the current of winding 41. Thus, the high frequency of the high voltage is obtained at secondary winding 42, and the high frequency is rectified (18) to be supplied to magnetron 19. In this case, the duty cycle of the base current waveform to be applied to the base of TR5 is increased gradually in an automatic way for the period from the throw-in time of the commercial power supply to the lapse of a fixed time in order to give the on/off control to TR5 through comparison 6 between the output passed through constant voltage circuit 7 plus integrating circuit 8 and 9 and the output of saw-tooth wave generator 10.
COPYRIGHT: (C)1979,JPO&Japio
JP13605477A 1977-11-11 1977-11-11 Power supply unit for magnetron Pending JPS5469002A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13605477A JPS5469002A (en) 1977-11-11 1977-11-11 Power supply unit for magnetron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13605477A JPS5469002A (en) 1977-11-11 1977-11-11 Power supply unit for magnetron

Publications (1)

Publication Number Publication Date
JPS5469002A true JPS5469002A (en) 1979-06-02

Family

ID=15166095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13605477A Pending JPS5469002A (en) 1977-11-11 1977-11-11 Power supply unit for magnetron

Country Status (1)

Country Link
JP (1) JPS5469002A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61290804A (en) * 1985-06-19 1986-12-20 Tokuda Seisakusho Ltd Microwave generator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61290804A (en) * 1985-06-19 1986-12-20 Tokuda Seisakusho Ltd Microwave generator
JPH0335844B2 (en) * 1985-06-19 1991-05-29 Tokuda Seisakusho

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