JPS62140894U - - Google Patents
Info
- Publication number
- JPS62140894U JPS62140894U JP2679086U JP2679086U JPS62140894U JP S62140894 U JPS62140894 U JP S62140894U JP 2679086 U JP2679086 U JP 2679086U JP 2679086 U JP2679086 U JP 2679086U JP S62140894 U JPS62140894 U JP S62140894U
- Authority
- JP
- Japan
- Prior art keywords
- output
- phase
- circuit
- detection transformer
- waveform shaping
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000013256 coordination polymer Substances 0.000 description 1
Description
第１図は本考案に係るＣＶＣＦ電源装置の制御
回路の一実施例を示す回路図、第２図ａ，ｂは同
実施例の動作説明のための各部の波形図、第３図
は従来のトランスレスの小容量ＣＶＣＦ電源装置
の回路構成を示す回路図、第４図は従来の制御回
路による制御動作時の各部の波形図である。
ＣＮＶ……ダイオードブリツジ回路、ＩＮＶ…
…インバータ、Ｔｒ……チヨツパ用スイツチ、Ｔ
Ｆ１……入力の相間電圧検出用のトランス、ＴＦ
２……入力の接地相検出用のトランス、ＷＦ……
波形成形回路（バンドパスフイルター）、ＡＭＰ
……反転増幅器、ＡＤ……ＡＣ／ＤＣ変換回路、
ＣＰ……コンパレータ、ＣＳ……切換回路、Ｃｏ
Ｎ……インバータ制御部。
FIG. 1 is a circuit diagram showing an embodiment of the control circuit of the CVCF power supply device according to the present invention, FIGS. 2a and b are waveform diagrams of various parts for explaining the operation of the same embodiment, and FIG. FIG. 4 is a circuit diagram showing the circuit configuration of a transformerless small capacity CVCF power supply device, and FIG. 4 is a waveform diagram of various parts during control operation by a conventional control circuit. CNV...Diode bridge circuit, INV...
...Inverter, Tr... Switch for chiyotsupa, T
F1 ...Transformer for input phase voltage detection, TF
2 ...Transformer for input ground phase detection, WF...
Waveform shaping circuit (bandpass filter), AMP
...Inverting amplifier, AD...AC/DC conversion circuit,
CP...Comparator, CS...Switching circuit, Co
N...Inverter control unit.
Claims (1)
定電圧定周波電源装置において、入力の相間電圧
を検出する検出用トランスと、この検出用トラン
スの出力から基本波を取出す波形成形回路と、こ
の波形成形回路の出力の位相を反転する反転増幅
器と、入力の接地相を検出する検出用トランスと
、この接地相検出用トランスの出力をＡＣ―ＤＣ
変換する交直変換回路と、この変換回路の出力と
基準値とを比較して接地相を判別するコンパレー
タと、このコンパレータの出力に基づいて前記波
形成形回路の出力と反転増幅器の出力を切換えて
インバータ制御部に送付する切換回路とを備えて
なることを特徴とする小容量定電圧定周波電源装
置の制御回路。 A transformerless small capacity constant voltage constant frequency power supply with one input phase grounded includes a detection transformer that detects the input phase-to-phase voltage, a waveform shaping circuit that extracts the fundamental wave from the output of this detection transformer, and An inverting amplifier that inverts the phase of the output of the waveform shaping circuit, a detection transformer that detects the ground phase of the input, and an AC-DC converter that converts the output of the ground phase detection transformer.
An AC/DC conversion circuit for conversion, a comparator for determining the ground phase by comparing the output of this conversion circuit with a reference value, and an inverter for switching between the output of the waveform shaping circuit and the output of the inverting amplifier based on the output of this comparator. 1. A control circuit for a small-capacity constant-voltage constant-frequency power supply device, comprising a switching circuit for sending data to a control section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2679086U JPS62140894U (en) | 1986-02-26 | 1986-02-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2679086U JPS62140894U (en) | 1986-02-26 | 1986-02-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62140894U true JPS62140894U (en) | 1987-09-05 |
Family
ID=30828201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2679086U Pending JPS62140894U (en) | 1986-02-26 | 1986-02-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62140894U (en) |
-
1986
- 1986-02-26 JP JP2679086U patent/JPS62140894U/ja active Pending
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