JPS6465794A - High frequency heater - Google Patents
High frequency heaterInfo
- Publication number
- JPS6465794A JPS6465794A JP22219787A JP22219787A JPS6465794A JP S6465794 A JPS6465794 A JP S6465794A JP 22219787 A JP22219787 A JP 22219787A JP 22219787 A JP22219787 A JP 22219787A JP S6465794 A JPS6465794 A JP S6465794A
- Authority
- JP
- Japan
- Prior art keywords
- magnetron
- voltage
- anode
- current
- switched
- 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 improve manufacturing efficiency of a magnetron by performing current compensation, in the case the operation starting voltage of the magnetron is not at a rated value, according to the deviation from the rated value to make the oscillation output of the magnetron constant thereby making it possible to eliminate an adjustment work. CONSTITUTION:When a power source of a high frequency heater is turned on, an inverter circuit 20 works and a filament of a magnetron 10 is heated. An anode voltage setting value is switched via an anode voltage switching signal at a timing of adequate heating. If an anode current flows under this condition, the work start voltage of the magnetron 10 is determined to be below a set voltage E1, an anode current setting value is compensated, and a current 6 given to the magnetron 10 is switched. Even if the anode voltage 65 is the voltage E1, the work start voltage of the magnetron 10 is determined to be above the voltage E1 if the anode current 64 does not flow to the magnetron 10 and the anode voltage setting value is switched to E2 via an anode switching signal. If the current 64 flows under this condition, the work start voltage of the magnetron 10 is determined to be in the range of E1-E2, the anode current value is compensated and oscillation output is made constant.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22219787A JPS6465794A (en) | 1987-09-04 | 1987-09-04 | High frequency heater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22219787A JPS6465794A (en) | 1987-09-04 | 1987-09-04 | High frequency heater |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6465794A true JPS6465794A (en) | 1989-03-13 |
Family
ID=16778665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22219787A Pending JPS6465794A (en) | 1987-09-04 | 1987-09-04 | High frequency heater |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6465794A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4025462A1 (en) * | 1989-08-10 | 1991-02-14 | Sanyo Electric Co | HIGH FREQUENCY HEATING UNIT |
DE4023132A1 (en) * | 1989-08-09 | 1991-02-21 | Toshiba Kawasaki Kk | HIGH FREQUENCY HEATING DEVICE |
DE19900321A1 (en) * | 1998-03-24 | 1999-10-07 | Samsung Electronics Co Ltd | Food quantity detector for a microwave oven, a microwave oven using a food quantity detector, and a control method therefor |
US7064305B2 (en) * | 2002-05-25 | 2006-06-20 | Samsung Electronics Co., Ltd. | Apparatus and method for controlling output of magnetron of microwave oven |
US7414228B2 (en) | 2003-04-11 | 2008-08-19 | Matsushita Electric Industrial Co., Ltd. | High frequency heating apparatus |
JP2011222279A (en) * | 2010-04-08 | 2011-11-04 | Toyo Eng Works Ltd | Microwave heating device and microwave heating method |
-
1987
- 1987-09-04 JP JP22219787A patent/JPS6465794A/en active Pending
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4023132A1 (en) * | 1989-08-09 | 1991-02-21 | Toshiba Kawasaki Kk | HIGH FREQUENCY HEATING DEVICE |
DE4025462A1 (en) * | 1989-08-10 | 1991-02-14 | Sanyo Electric Co | HIGH FREQUENCY HEATING UNIT |
DE4025462C2 (en) * | 1989-08-10 | 1993-11-25 | Sanyo Electric Co | High frequency heating device |
DE19900321A1 (en) * | 1998-03-24 | 1999-10-07 | Samsung Electronics Co Ltd | Food quantity detector for a microwave oven, a microwave oven using a food quantity detector, and a control method therefor |
US6215112B1 (en) | 1998-03-24 | 2001-04-10 | Samsung Electronics Co., Ltd. | Food amount detector of a microwave oven, a microwave oven employing a food amount detector and a control method thereof |
US6348680B2 (en) | 1998-03-24 | 2002-02-19 | Samsung Electonics Co., Ltd. | Food amount detector of a microwave oven, a microwave oven employing a food amount detector and a control method thereof |
US6472650B2 (en) | 1998-03-24 | 2002-10-29 | Samsung Electronics Co., Ltd. | Food amount detector of a microwave oven, a microwave oven employing a food amount detector and a control method thereof |
DE19900321B4 (en) * | 1998-03-24 | 2005-05-19 | Samsung Electronics Co., Ltd., Suwon | Food quantity detector for a microwave oven, microwave oven with a food quantity detector and control method therefor |
US7064305B2 (en) * | 2002-05-25 | 2006-06-20 | Samsung Electronics Co., Ltd. | Apparatus and method for controlling output of magnetron of microwave oven |
US7414228B2 (en) | 2003-04-11 | 2008-08-19 | Matsushita Electric Industrial Co., Ltd. | High frequency heating apparatus |
JP2011222279A (en) * | 2010-04-08 | 2011-11-04 | Toyo Eng Works Ltd | Microwave heating device and microwave heating method |
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