JPH0271993U - - Google Patents
Info
- Publication number
- JPH0271993U JPH0271993U JP15089488U JP15089488U JPH0271993U JP H0271993 U JPH0271993 U JP H0271993U JP 15089488 U JP15089488 U JP 15089488U JP 15089488 U JP15089488 U JP 15089488U JP H0271993 U JPH0271993 U JP H0271993U
- Authority
- JP
- Japan
- Prior art keywords
- power
- detection means
- inverter
- magnetron
- control circuit
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000001629 suppression Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 8
Landscapes
- Control Of High-Frequency Heating Circuits (AREA)
Description
第１図ないし第４図は本考案による高周波加熱
装置の１実施例を示し、第１図は全体回路図、第
２図は制御信号回路の詳細な結線図、第３図及び
第４図はイバータ電源出力特性図、第５図以下は
従来の高周波加熱装置を示し、第５図は全体回路
図、第６図は電力検出手段の斜視図、第７図は電
力検出回路の結線図、第８図及び第９図はそれぞ
れインバータ電源出力特性図である。
８……インバータ、９……高圧トランス、１３
……マグネトロン、１４……ホール素子、２１…
…電流トランス、１８′……制御信号回路、２４
……電力抑制回路。
1 to 4 show one embodiment of the high-frequency heating device according to the present invention, in which FIG. 1 is an overall circuit diagram, FIG. 2 is a detailed wiring diagram of a control signal circuit, and FIGS. 3 and 4 are Inverter power supply output characteristic diagram, Figure 5 and the following diagrams show a conventional high-frequency heating device, Figure 5 is an overall circuit diagram, Figure 6 is a perspective view of the power detection means, Figure 7 is a wiring diagram of the power detection circuit, and Figure 7 is a diagram of the power detection circuit. 8 and 9 are inverter power supply output characteristic diagrams, respectively. 8...Inverter, 9...High voltage transformer, 13
...Magnetron, 14...Hall element, 21...
...Current transformer, 18'...Control signal circuit, 24
...Power suppression circuit.
Claims (1)
の１次側電源を高周波化するインバータと、該イ
ンバータの入力電力を検出する電力検出手段と、
該電力検出手段の検出電力値に基づいて前記イン
バータの動作を制御し前記入力電力を安定化する
制御回路とを備えた高周波加熱装置において、 前記マグネトロンの陽極電流を検出する電流検
出手段を設け、前記制御回路に、前記電流検出手
段の検出電流値に従つた制御抑制信号を出力し高
温環境等によりマグネトロンの出力特性が変化し
た場合に回路上で予め定めた範囲内で前記陽極電
流が増加する程度に前記入力電力を減少させる電
力制御回路を設けた高周波加熱装置。[Claims for Utility Model Registration] An inverter that increases the frequency of the primary power source of a high-voltage transformer with a magnetron connected to the secondary side, and power detection means that detects the input power of the inverter;
A high frequency heating device comprising a control circuit that controls the operation of the inverter and stabilizes the input power based on the power value detected by the power detection means, further comprising a current detection means for detecting an anode current of the magnetron. A control suppression signal is output to the control circuit in accordance with the current value detected by the current detection means, so that when the output characteristics of the magnetron change due to a high temperature environment, the anode current increases within a predetermined range on the circuit. A high-frequency heating device provided with a power control circuit that reduces the input power to a certain extent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988150894U JPH074791Y2 (en) | 1988-11-19 | 1988-11-19 | High frequency heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988150894U JPH074791Y2 (en) | 1988-11-19 | 1988-11-19 | High frequency heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0271993U true JPH0271993U (en) | 1990-05-31 |
| JPH074791Y2 JPH074791Y2 (en) | 1995-02-01 |
Family
ID=31424445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988150894U Expired - Lifetime JPH074791Y2 (en) | 1988-11-19 | 1988-11-19 | High frequency heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH074791Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0684588A (en) * | 1992-02-14 | 1994-03-25 | Samsung Electron Co Ltd | Circuit and method for stabilization of output of microwave oven |
| JP2007506258A (en) * | 2003-09-22 | 2007-03-15 | エム ケー エス インストルメンツ インコーポレーテッド | Method and apparatus for preventing instability in radio frequency plasma processing |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6142315U (en) * | 1984-08-22 | 1986-03-18 | 三菱自動車工業株式会社 | sun visor device |
-
1988
- 1988-11-19 JP JP1988150894U patent/JPH074791Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6142315U (en) * | 1984-08-22 | 1986-03-18 | 三菱自動車工業株式会社 | sun visor device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0684588A (en) * | 1992-02-14 | 1994-03-25 | Samsung Electron Co Ltd | Circuit and method for stabilization of output of microwave oven |
| JP2007506258A (en) * | 2003-09-22 | 2007-03-15 | エム ケー エス インストルメンツ インコーポレーテッド | Method and apparatus for preventing instability in radio frequency plasma processing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH074791Y2 (en) | 1995-02-01 |