JPH0295196U - - Google Patents
Info
- Publication number
- JPH0295196U JPH0295196U JP243689U JP243689U JPH0295196U JP H0295196 U JPH0295196 U JP H0295196U JP 243689 U JP243689 U JP 243689U JP 243689 U JP243689 U JP 243689U JP H0295196 U JPH0295196 U JP H0295196U
- Authority
- JP
- Japan
- Prior art keywords
- winding
- transformer
- detection
- heating device
- frequency heating
- 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)
Description
第１図は本考案の高周波加熱装置の電気的構成
を示す回路図、第２図は同装置の昇圧トランスの
構造を示す縦断面図、第３図は従来の高周波加熱
装置の電気的構成を示す回路図、第４図は同装置
の昇圧トランスの構造を示す縦断面図である。
１……商用電源、２……整流ブリツジ、３……
チヨークコイル、４……平滑コンデンサ、５……
昇圧トランス、５ａ……一次巻線、５ｂ……二次
巻線、５ｃ……フイラメント巻線、５ｄ……検知
巻線、６……共振コンデンサ、７……ダイオード
、８……スイツチング素子、９……マグネトロン
、１３……制御回路、１４……駆動回路、Ｔ……
中間タツプ。
Figure 1 is a circuit diagram showing the electrical configuration of the high-frequency heating device of the present invention, Figure 2 is a vertical cross-sectional view showing the structure of the step-up transformer of the same device, and Figure 3 is the electrical configuration of the conventional high-frequency heating device. The circuit diagram shown in FIG. 4 is a longitudinal sectional view showing the structure of the step-up transformer of the same device. 1... Commercial power supply, 2... Rectifier bridge, 3...
Chiyoke coil, 4... Smoothing capacitor, 5...
Step-up transformer, 5a...Primary winding, 5b...Secondary winding, 5c...Filament winding, 5d...Detection winding, 6...Resonance capacitor, 7...Diode, 8...Switching element, 9 ... Magnetron, 13 ... Control circuit, 14 ... Drive circuit, T ...
Intermediate tap.
Claims (1)
整流平滑回路の出力側に、マグネトロン駆動用の
昇圧トランスの一次巻線と共振コンデンサとダイ
オードとスイツチング素子とで構成されたインバ
ータ回路が接続されるとともに、前記昇圧トラン
スの二次巻線側に、該昇圧トランスの二次側発生
電圧波形を検知するための検知巻線が設けられ、
該検知巻線の検知結果に基くことにより、前記ス
イツチング素子のＯＮ／ＯＦＦ動作を制御するよ
うに構成された高周波加熱装置において、 前記検知巻線は、前記昇圧トランスの二次巻線
に中間タツプを設けることにより、該中間タツプ
と二次巻線の一方の端部との間の巻線によつて形
成されたことを特徴とする高周波加熱装置。[Claim for Utility Model Registration] The output side of a rectifier and smoothing circuit that rectifies and smoothes commercial power to convert it into DC power is composed of the primary winding of a step-up transformer for driving a magnetron, a resonant capacitor, a diode, and a switching element. an inverter circuit is connected thereto, and a detection winding is provided on the secondary winding side of the step-up transformer for detecting a voltage waveform generated on the secondary side of the step-up transformer,
In the high-frequency heating device configured to control the ON/OFF operation of the switching element based on the detection result of the detection winding, the detection winding connects an intermediate tap to the secondary winding of the step-up transformer. A high-frequency heating device characterized in that it is formed by a winding between the intermediate tap and one end of the secondary winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP243689U JPH0295196U (en) | 1989-01-12 | 1989-01-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP243689U JPH0295196U (en) | 1989-01-12 | 1989-01-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0295196U true JPH0295196U (en) | 1990-07-30 |
Family
ID=31203197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP243689U Pending JPH0295196U (en) | 1989-01-12 | 1989-01-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0295196U (en) |
-
1989
- 1989-01-12 JP JP243689U patent/JPH0295196U/ja active Pending