JPS5469002A - Power supply unit for magnetron - Google Patents
Power supply unit for magnetronInfo
- 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
Links
Landscapes
- 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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61290804A (en) * | 1985-06-19 | 1986-12-20 | Tokuda Seisakusho Ltd | Microwave generator |
-
1977
- 1977-11-11 JP JP13605477A patent/JPS5469002A/en active Pending
Cited By (2)
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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