JPS59129385U - frequency converter - Google Patents
frequency converterInfo
- Publication number
- JPS59129385U JPS59129385U JP23384U JP23384U JPS59129385U JP S59129385 U JPS59129385 U JP S59129385U JP 23384 U JP23384 U JP 23384U JP 23384 U JP23384 U JP 23384U JP S59129385 U JPS59129385 U JP S59129385U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- frequency
- output
- frequency conversion
- 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
Landscapes
- Ac-Ac Conversion (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案による周波数変換装置の一実施例を示す
回路図、第２図は周波数変換装置の出力周波数を変えた
場合の出力電流、加熱出力の変化を示す図、第３図は本
考案による周波数変換装置の出力波形を示す図、第４図
は本考案による周波数変換装置の制御回路の具体構成を
示すブロック図、第５図は本考案による周波数変換装置
の出力制御法の他の実施例を示す図、第６図は本考案を
電子レンジなどのマグネトロン駆動源に応用した実施例
を示す図である。
３Ａ・・・周波数変換回路、３Ｂ・・・制御回路、４・
・・加熱コイル、３３ａ、３３ｂ、３４ａ、３４ｂ−・
・スイッチング半導体、３５・・・共振用コンデンサ、
６０・・・出力設定回路、６４・・・導通間隔制御回路
、６５・・・発振時間比制御回路。Fig. 1 is a circuit diagram showing an embodiment of the frequency converter according to the present invention, Fig. 2 is a diagram showing changes in output current and heating output when the output frequency of the frequency converter is changed, and Fig. 3 is a diagram showing the changes in the output current and heating output when the output frequency of the frequency converter is changed. FIG. 4 is a block diagram showing the specific configuration of the control circuit of the frequency converter according to the present invention, and FIG. 5 is a diagram showing another output control method of the frequency converter according to the present invention. FIG. 6 is a diagram showing an embodiment in which the present invention is applied to a magnetron drive source such as a microwave oven. 3A...Frequency conversion circuit, 3B...Control circuit, 4.
...Heating coil, 33a, 33b, 34a, 34b--
・Switching semiconductor, 35... Resonance capacitor,
60... Output setting circuit, 64... Conduction interval control circuit, 65... Oscillation time ratio control circuit.
Claims (3)
路と、その制御回路よりなり、前記制御回路は前記周波
数変換回路の出力を設定する出力設定回路と、この出力
設定回路の出力を入力して前記周波数変換回路の発振周
波数を連続的に制御する導通間隔制御回路と、前記出力
設定回路の設定レベルが所定値以下になった時に作動す
る発振停止時間比制御回路より構成され、前記出力設定
回路の設定レベルが所定値以上の時に前記周波数変換回
路を周波数制御し、前記出力設定回路の設定レベルが所
定値以下の時にデユーティ制御して出力制御を行う周波
数変換装置。(1) Consists of a frequency conversion circuit that converts low-frequency alternating current into high-frequency power and its control circuit, and the control circuit includes an output setting circuit that sets the output of the frequency conversion circuit and the output of this output setting circuit. a conduction interval control circuit that continuously controls the oscillation frequency of the frequency conversion circuit; and an oscillation stop time ratio control circuit that operates when the set level of the output setting circuit becomes a predetermined value or less; A frequency conversion device that performs frequency control on the frequency conversion circuit when a set level of the circuit is above a predetermined value, and performs duty control and output control when the set level of the output setting circuit is below a predetermined value.
に同期して動作するように構成した実用新案登録請求の
範囲第１項記載の周波数変換装置。(2) The frequency converter according to claim 1, wherein the oscillation stop time ratio control circuit is configured to operate in synchronization with the zero point of the low frequency AC voltage.
出力電流の低レベルあるいは導通間隔制御回路の導通間
隔の長い設定レベルにおいて動作する構成とした実用新
案登録請求の範囲第１項記載の周波数変換装置。(3) The frequency conversion according to claim 1, wherein the oscillation stop time ratio control circuit is configured to operate at a low level of the output current of the frequency conversion circuit or at a set level of a long conduction interval of the conduction interval control circuit. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23384U JPS59129385U (en) | 1984-01-05 | 1984-01-05 | frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23384U JPS59129385U (en) | 1984-01-05 | 1984-01-05 | frequency converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59129385U true JPS59129385U (en) | 1984-08-30 |
| JPS6138394Y2 JPS6138394Y2 (en) | 1986-11-06 |
Family
ID=30131986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23384U Granted JPS59129385U (en) | 1984-01-05 | 1984-01-05 | frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59129385U (en) |
-
1984
- 1984-01-05 JP JP23384U patent/JPS59129385U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6138394Y2 (en) | 1986-11-06 |
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