JPH0443895U - - Google Patents
Info
- Publication number
- JPH0443895U JPH0443895U JP8666890U JP8666890U JPH0443895U JP H0443895 U JPH0443895 U JP H0443895U JP 8666890 U JP8666890 U JP 8666890U JP 8666890 U JP8666890 U JP 8666890U JP H0443895 U JPH0443895 U JP H0443895U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- voltage
- transformer
- resistor
- controls
- 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
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of High-Frequency Heating Circuits (AREA)
Description
第１図は本考案に係る高周波加熱装置の要部回
路図、第２図は各部動作のタイミングチヤート、
第３図は考案の原理を説明する説明図、第４図は
リレーコイル駆動電圧と接点閉路に要する時間と
の関係を示すリレーの特性図である。
１……交流電源、３……ドアースイツチ、４…
…第１リレー、４ａ……接点、５……昇圧トラン
ス、６……マグネトロン、７……第２リレー、７
ａ……接点、１０……制御トランス、Ｖｃｃ……
制御電圧端子、ＲＤ……抵抗、１２……制御部、
Ｑ１，Ｑ２，Ｑ３……トランジスタ。
Fig. 1 is a circuit diagram of the main parts of the high frequency heating device according to the present invention, Fig. 2 is a timing chart of the operation of each part,
FIG. 3 is an explanatory diagram for explaining the principle of the invention, and FIG. 4 is a characteristic diagram of the relay showing the relationship between the relay coil drive voltage and the time required for contact closure. 1...AC power supply, 3...door switch, 4...
...First relay, 4a...Contact, 5...Step-up transformer, 6...Magnetron, 7...Second relay, 7
a... Contact, 10... Control transformer, V cc ...
Control voltage terminal, RD...Resistor, 12...Control unit,
Q1, Q2, Q3...transistors.
Claims (1)
て、該トランスの出力により加熱源を駆動する高
周波加熱装置において、 前記トランスに与える電圧を入断制御する第１
スイツチと、トランス以外に与える電圧を入断制
御する第２スイツチと、抵抗の電流を入断制御す
る第３スイツチと、前記交流電圧に同期しており
、前記各スイツチに共通の制御電源とを備え、第
２スイツチの閉路により生じる制御電源の電圧降
下に等しい電圧降下を前記抵抗に生ずべくなして
あり、第２スイツチと第３スイツチとが相補動作
すべく構成してあることを特徴とする高周波加熱
装置。[Claims for Utility Model Registration] A high-frequency heating device in which a voltage obtained by turning on and off an alternating current voltage is applied to a transformer and a heating source is driven by the output of the transformer, comprising: 1
a second switch that controls on/off the voltage applied to other than the transformer, a third switch that controls on/off the current of the resistor, and a control power source that is synchronized with the AC voltage and common to each of the switches. A voltage drop equal to a voltage drop of the control power source caused by closing of the second switch is generated in the resistor, and the second switch and the third switch are configured to operate complementary to each other. High frequency heating equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8666890U JPH0443895U (en) | 1990-08-17 | 1990-08-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8666890U JPH0443895U (en) | 1990-08-17 | 1990-08-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0443895U true JPH0443895U (en) | 1992-04-14 |
Family
ID=31636274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8666890U Pending JPH0443895U (en) | 1990-08-17 | 1990-08-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0443895U (en) |
-
1990
- 1990-08-17 JP JP8666890U patent/JPH0443895U/ja active Pending
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