JPS57163949A - Magnetron driving circuit - Google Patents
Magnetron driving circuitInfo
- Publication number
- JPS57163949A JPS57163949A JP4885181A JP4885181A JPS57163949A JP S57163949 A JPS57163949 A JP S57163949A JP 4885181 A JP4885181 A JP 4885181A JP 4885181 A JP4885181 A JP 4885181A JP S57163949 A JPS57163949 A JP S57163949A
- Authority
- JP
- Japan
- Prior art keywords
- magnetron
- voltage
- decreased
- frequency
- suppressed
- 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.)
- Granted
Links
Classifications
-
- 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
- Control Of High-Frequency Heating Circuits (AREA)
- Microwave Tubes (AREA)
Abstract
PURPOSE:To stabilize voltage supplied to a high-voltage transformer, a magnetron and the like by detecting the difference between the electric potentials of the ends of the magnetron, and changing the operational frequency of the high- voltage transformer or the like when the detected value is unusual. CONSTITUTION:The partial pressure of a voltage dividing circuit 23 rises when the voltage of a power source is increased. As the result, the period between the pulses of a time-constant circuit 13 of a nonstable multivibrator (MV) 9 is shortened, the frequency of the pulse generation is increased, and the current flowing through a magnetron 1 tends to be decreased. Accordingly, the increase of the current fed to the magnetron 1 is suppressed. In contrast, when the voltage of the power source is decreased, the generation frequency of the MV 9 is decreased, and the decrease of the current fed to the magnetron is suppressed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4885181A JPS57163949A (en) | 1981-03-31 | 1981-03-31 | Magnetron driving circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4885181A JPS57163949A (en) | 1981-03-31 | 1981-03-31 | Magnetron driving circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57163949A true JPS57163949A (en) | 1982-10-08 |
JPH0234135B2 JPH0234135B2 (en) | 1990-08-01 |
Family
ID=12814759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4885181A Granted JPS57163949A (en) | 1981-03-31 | 1981-03-31 | Magnetron driving circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57163949A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62208528A (en) * | 1986-03-07 | 1987-09-12 | Mitsubishi Electric Corp | Power supply for magnetron |
JPS62290098A (en) * | 1987-04-24 | 1987-12-16 | 三菱電機株式会社 | Microwave discharge light source |
US4866590A (en) * | 1987-09-18 | 1989-09-12 | Hitachi, Ltd. | Supply having a load invariant auxiliary power supply supplied from a main transformer and a current suppressing inductor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5747823U (en) * | 1980-09-01 | 1982-03-17 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5359246A (en) * | 1976-11-08 | 1978-05-27 | Matsushita Electric Ind Co Ltd | Air conditioner |
-
1981
- 1981-03-31 JP JP4885181A patent/JPS57163949A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5747823U (en) * | 1980-09-01 | 1982-03-17 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62208528A (en) * | 1986-03-07 | 1987-09-12 | Mitsubishi Electric Corp | Power supply for magnetron |
JPS62290098A (en) * | 1987-04-24 | 1987-12-16 | 三菱電機株式会社 | Microwave discharge light source |
US4866590A (en) * | 1987-09-18 | 1989-09-12 | Hitachi, Ltd. | Supply having a load invariant auxiliary power supply supplied from a main transformer and a current suppressing inductor |
Also Published As
Publication number | Publication date |
---|---|
JPH0234135B2 (en) | 1990-08-01 |
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