JPS6137199Y2 - - Google Patents
Info
- Publication number
- JPS6137199Y2 JPS6137199Y2 JP15326782U JP15326782U JPS6137199Y2 JP S6137199 Y2 JPS6137199 Y2 JP S6137199Y2 JP 15326782 U JP15326782 U JP 15326782U JP 15326782 U JP15326782 U JP 15326782U JP S6137199 Y2 JPS6137199 Y2 JP S6137199Y2
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- magnetron
- output
- changeover switch
- frequency
- 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.)
- Expired
Links
- 239000003990 capacitor Substances 0.000 claims description 33
- 238000004804 winding Methods 0.000 claims description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
Landscapes
- Control Of High-Frequency Heating Circuits (AREA)
Description
【考案の詳細な説明】
本考案は特に電子レンジに備えられたマグネト
ロンの出力切換回路に係り、更に詳しくは電子レ
ンジの電源の周波数が所定の定格周波数よりも高
くなつた場合にも、該マグネトロンの出力を該所
定の定格周波数の場合と略同一の高出力に保持す
ることができるようにしたマグネトロンの出力切
換回路に関する。[Detailed Description of the Invention] The present invention particularly relates to an output switching circuit for a magnetron provided in a microwave oven, and more specifically, even when the frequency of the power supply of the microwave oven becomes higher than a predetermined rated frequency, the magnetron The present invention relates to a magnetron output switching circuit that can maintain the output of a magnetron at substantially the same high output as that at the predetermined rated frequency.
従来のこの種回路として、電源トランスとマグ
ネトロンとの接続回路にスイツチの開閉により合
成容量が減少又は増加する複数のコンデンサを介
入接続して、マグネトロンの出力を低出力と高出
力とに切換えることができるようにしたものが知
られる（例えば、特公昭50−11046号公報）。 In conventional circuits of this kind, the output of the magnetron can be switched between low output and high output by intervening multiple capacitors whose combined capacitance decreases or increases when a switch is opened or closed in the connection circuit between the power transformer and the magnetron. There are known methods that allow this (for example, Japanese Patent Publication No. 11046/1983).
しかしながら、このものによれば、所定の定格
周波数（例えば50Hz）より高い定格周波数（例え
ば60Hz）の電源を用いて、該所定の定格周波数の
ときと略同一の高出力のマグネトロンの出力を得
ようとする場合、該所定の定格周波数の電源のと
きに用いた複数のコンデンサを、容量の小さい複
数のコンデンサに取換えなければならず、その作
業が面倒で且つ高価になる欠点もあつた。 However, according to this method, by using a power supply with a rated frequency (for example, 60Hz) higher than a predetermined rated frequency (for example, 50Hz), it is possible to obtain a high-output magnetron output that is approximately the same as that at the predetermined rated frequency. In this case, it is necessary to replace the plurality of capacitors used in the power supply with the predetermined rated frequency with a plurality of capacitors of smaller capacity, which has the drawback of making the work troublesome and expensive.
本考案は上記欠点を無くした回路を提供するこ
とをその目的とするもので、電源トランス１の二
次巻線２に、切換スイツチ３により選択接続され
る第１コンデンサ４と該第１コンデンサ４より小
容量の第２コンデンサ５とを介してマグネトロン
６を接続し、リード線７を、その一端を該二次巻
線２と該切換スイツチ３との接続点８に、その他
端を該切換スイツチ３と該第２コンデンサ５との
接続点９に夫々接続して、電源の所定の定格周波
数において、該切換スイツチ３を該第１コンデン
サ４側に切換えたときに該マグネトロン６の出力
が高出力となり、該第２コンデンサ５側に切換え
たときに低出力となるようにすると共に、電源の
周波数が該所定の定格周波数より高く該リード線
７を取外した場合、該切換スイツチ３を該第１コ
ンデンサ４側に切換えたときに該マグネトロン６
の出力が電源の周波数が該所定の定格周波数の場
合と略同一の高出力となるようにしたことを特徴
とする。 The object of the present invention is to provide a circuit which eliminates the above-mentioned drawbacks, and includes a first capacitor 4 selectively connected to the secondary winding 2 of a power transformer 1 by a changeover switch 3; A magnetron 6 is connected via a second capacitor 5 of a smaller capacity, and a lead wire 7 is connected at one end to a connection point 8 between the secondary winding 2 and the changeover switch 3, and at the other end to the changeover switch. 3 and the second capacitor 5, and when the selector switch 3 is switched to the first capacitor 4 side at a predetermined rated frequency of the power supply, the output of the magnetron 6 is set to high output. Therefore, when switching to the second capacitor 5 side, the output is low, and when the frequency of the power source is higher than the predetermined rated frequency and the lead wire 7 is removed, the changeover switch 3 is set to the first capacitor side. When switching to the capacitor 4 side, the magnetron 6
It is characterized in that the output is set to be substantially the same high output as when the frequency of the power supply is the predetermined rated frequency.
図示のものでは電源の所定の定格周波数として
50Hzを用い、これより高い定格周波数として60Hz
を用いた。 In the diagram, the specified rated frequency of the power supply is
Using 50Hz, 60Hz as a higher rated frequency
was used.
該マグネトロン６として高出力が500Wになる
ものを用い、この場合の第１・第２コンデンサ
４，５の容量は夫々0.59μＦ、0.27μＦである。 The magnetron 6 has a high output of 500 W, and the capacitances of the first and second capacitors 4 and 5 are 0.59 μF and 0.27 μF, respectively.
図中１０はダイオード、１１は抵抗を夫々示
す。 In the figure, 10 indicates a diode, and 11 indicates a resistor.
次いでその作動を説明するに、所定の定格周波
数の電源を用いた場合には、切換スイツチ３を第
１コンデンサ４側にすれば、該第１コンデンサ４
と第２コンデンサ５との並列接続回路が形成さ
れ、電源トランス１とマグネトロン６との接続回
路に介入接続されるコンデンサの容量が該第１コ
ンデンサ４単独の容量より大きくなつて、該マグ
ネトロン６からは高出力が発生され、切換スイツ
チ３を第２コンデンサ５側にすれば、電源トラン
ス１とマグネトロン６との接続回路に介入接続さ
れるコンデンサの容量が該第２コンデンサ５単独
の容量となり、該マグネトロン６からは低出力が
発生される。 Next, to explain its operation, when a power supply with a predetermined rated frequency is used, if the selector switch 3 is set to the first capacitor 4 side, the first capacitor 4
and the second capacitor 5 are formed, and the capacitance of the capacitor interposed in the connection circuit between the power transformer 1 and the magnetron 6 becomes larger than the capacitance of the first capacitor 4 alone. When a high output is generated and the changeover switch 3 is set to the second capacitor 5 side, the capacitance of the capacitor connected to the connection circuit between the power transformer 1 and the magnetron 6 becomes the capacity of the second capacitor 5 alone, and the A low power is generated from the magnetron 6.
また、所定の定格周波数より高い周波数の電源
を用いた場合には、リード線７を取外せばよい。 Further, when a power source with a frequency higher than a predetermined rated frequency is used, the lead wire 7 may be removed.
この構成によれば、切換スイツチ３を第１コン
デンサ４側にすると、電源トランス１とマグネト
ロン６との接続回路に介入接続されるコンデンサ
の容量が該第１コンデンサ４単独の容量となり、
周波数の増加によるマグネトロン６の出力の増加
分はコンデンサの容量が所定の定格周波数の電源
を用いた場合より減少することにより相殺され
て、所定の定格周波数の電源を用いた場合と略同
一の高出力がマグネトロン６から発生される。 According to this configuration, when the changeover switch 3 is set to the first capacitor 4 side, the capacitance of the capacitor interveningly connected to the connection circuit between the power transformer 1 and the magnetron 6 becomes the capacitance of the first capacitor 4 alone.
The increase in the output of the magnetron 6 due to the increase in frequency is offset by the capacitance of the capacitor being smaller than when using a power supply with a predetermined rated frequency. Power is generated from magnetron 6.
このように本考案によるときは、マグネトロン
６の電源として所定の定格周波数より高い周波数
の電源を用いた場合リード線７を取外すだけで、
マグネトロン６の出力を所定の定格周波数の電源
を用いた場合と略同一の高出力にすることがで
き、前記従来のものに比して、その作業が簡単で
且つ廉価に提供できる効果を有する。 In this way, according to the present invention, if a power source with a frequency higher than the predetermined rated frequency is used as the power source for the magnetron 6, simply removing the lead wire 7 will
The output of the magnetron 6 can be made almost the same high output as when using a power supply with a predetermined rated frequency, and has the effect that the operation is simpler and can be provided at a lower cost than the conventional one.
図面は本考案の実施の１例を示す回路図であ
る。
１……電源トランス、２……二次巻線、３……
切換スイツチ、４……第１コンデンサ、５……第
２コンデンサ、６……マグネトロン、７……リー
ド線、８，９……接続点。
The drawing is a circuit diagram showing one example of implementation of the present invention. 1...Power transformer, 2...Secondary winding, 3...
Selector switch, 4...first capacitor, 5...second capacitor, 6...magnetron, 7...lead wire, 8, 9...connection point.
Claims (1)
３により選択接続される第１コンデンサ４と該第
１コンデンサ４より小容量の第２コンデンサ５と
を介してマグネトロン６を接続し、リード線７
を、その一端を該二次巻線２と該切換スイツチ３
との接続点８に、その他端を該切換スイツチ３と
該第２コンデンサ５との接続点９に夫々接続し
て、電源の所定の定格周波数において、該切換ス
イツチ３を該第１コンデンサ４側に切換えたとき
に該マグネトロン６の出力が高出力となり、該第
２コンデンサ５側に切換えたときに低出力となる
ようにすると共に、電源の周波数が該所定の定格
周波数より高く該リード線７を取外した場合、該
切換スイツチ３を該第１コンデンサ４側に切換え
たときに該マグネトロン６の出力が電源の周波数
が該所定の定格周波数の場合と略同一の高出力と
なるようにしたことを特徴とするマグネトロンの
出力切換回路。 A magnetron 6 is connected to the secondary winding 2 of the power transformer 1 via a first capacitor 4 selectively connected by a changeover switch 3 and a second capacitor 5 having a smaller capacity than the first capacitor 4.
, one end of which is connected to the secondary winding 2 and the changeover switch 3.
and the other end to the connection point 9 between the changeover switch 3 and the second capacitor 5, respectively, so that the changeover switch 3 is connected to the first capacitor 4 side at a predetermined rated frequency of the power supply. When switching to the second capacitor 5 side, the output of the magnetron 6 becomes high, and when switching to the second capacitor 5 side, the output becomes low, and the frequency of the power source is higher than the predetermined rated frequency. When the magnetron is removed, when the changeover switch 3 is switched to the first capacitor 4 side, the output of the magnetron 6 becomes a high output that is approximately the same as when the frequency of the power supply is the predetermined rated frequency. A magnetron output switching circuit featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15326782U JPS5957896U (en) | 1982-10-12 | 1982-10-12 | Magnetron output switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15326782U JPS5957896U (en) | 1982-10-12 | 1982-10-12 | Magnetron output switching circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5957896U JPS5957896U (en) | 1984-04-16 |
| JPS6137199Y2 true JPS6137199Y2 (en) | 1986-10-28 |
Family
ID=30339143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15326782U Granted JPS5957896U (en) | 1982-10-12 | 1982-10-12 | Magnetron output switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5957896U (en) |
-
1982
- 1982-10-12 JP JP15326782U patent/JPS5957896U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5957896U (en) | 1984-04-16 |
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