JPS62183977U - - Google Patents
Info
- Publication number
- JPS62183977U JPS62183977U JP7053986U JP7053986U JPS62183977U JP S62183977 U JPS62183977 U JP S62183977U JP 7053986 U JP7053986 U JP 7053986U JP 7053986 U JP7053986 U JP 7053986U JP S62183977 U JPS62183977 U JP S62183977U
- Authority
- JP
- Japan
- Prior art keywords
- power
- plasma arc
- circuit
- output
- conversion device
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 4
- 238000009499 grossing Methods 0.000 claims 2
- 239000003990 capacitor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図および第２図は、それぞれ本考案のプラ
ズマアーク加工用電力変換装置の実施例を示す接
続図である。
１…インバータ回路、２…昇圧変圧器、３…整
流回路、４…リアクトル、６…電流検出器、８…
整流器、１０…比較器、１１…インバータ駆動回
路、１２…基準電圧発生器、１３…アーク溶接用
電源、１４…安定化電源回路。
FIG. 1 and FIG. 2 are connection diagrams each showing an embodiment of the power conversion device for plasma arc processing of the present invention. 1... Inverter circuit, 2... Step-up transformer, 3... Rectifier circuit, 4... Reactor, 6... Current detector, 8...
Rectifier, 10... Comparator, 11... Inverter drive circuit, 12... Reference voltage generator, 13... Arc welding power supply, 14... Stabilized power supply circuit.
Claims (1)
電力を高周波交流電力に変換するインバータ回路
と、前記インバータ回路の出力をプラズマアーク
加工に適した比較的高い電圧に変換する昇圧変圧
器と、前記昇圧変圧器の出力を整流し平滑する整
流回路と、前記インバータ回路の制御回路とを具
備したプラズマアーク加工用電力変換装置。 ２ 前記既設のアーク溶接用電源は、出力電圧電
流特性が垂下特性または定電流特性の電源である
実用新案登録請求の範囲第１項に記載のプラズマ
アーク加工用電力変換装置。 ３ 前記制御回路は、出力電流を検出し検出値を
あらかじめ設定した基準値と比較し差信号によつ
て前記インバータ回路の出力を制御することによ
つて定電流特性を得る回路である実用新案登録請
求の範囲第１項または第２項に記載のプラズマア
ーク加工用電力変換装置。 ４ 前記インバータ回路と入力端子との間に整流
器を直列に接続した実用新案登録請求の範囲第１
項ないし第３項のいずれかに記載のプラズマアー
ク加工用電力変換装置。 ５ 前記整流器は両波整流器である実用新案登録
請求の範囲第４項に記載のプラズマアーク加工用
電力変換装置。 ６ 前記インバータ回路の入力端子に並列に平滑
用コンデンサが接続された実用新案登録請求の範
囲第１項ないし第５項のいずれかに記載のプラズ
マアーク加工用電力変換装置。 ７ 前記制御回路は、前記溶接電源の出力を入力
とする安定化電源回路を通して制御用の電力を得
る回路である実用新案登録請求の範囲第１項ない
し第６項のいずれかに記載のプラズマアーク加工
用電力変換装置。[Claims for Utility Model Registration] 1. An inverter circuit that obtains power from an existing arc welding power source and converts the input power into high-frequency AC power, and converts the output of the inverter circuit to a relatively high voltage suitable for plasma arc processing. A power converter for plasma arc processing, comprising: a step-up transformer for converting; a rectifier circuit for rectifying and smoothing the output of the step-up transformer; and a control circuit for the inverter circuit. 2. The power conversion device for plasma arc processing according to claim 1, wherein the existing arc welding power source is a power source with an output voltage current characteristic of a drooping characteristic or a constant current characteristic. 3. The control circuit is a circuit that obtains constant current characteristics by detecting the output current, comparing the detected value with a preset reference value, and controlling the output of the inverter circuit using a difference signal.Registered as a utility model. A power conversion device for plasma arc processing according to claim 1 or 2. 4 Utility model registration claim 1 in which a rectifier is connected in series between the inverter circuit and the input terminal
A power conversion device for plasma arc processing according to any one of items 1 to 3. 5. The power conversion device for plasma arc processing according to claim 4, wherein the rectifier is a double-wave rectifier. 6. The power conversion device for plasma arc processing according to any one of claims 1 to 5, wherein a smoothing capacitor is connected in parallel to the input terminal of the inverter circuit. 7. The plasma arc according to any one of claims 1 to 6, wherein the control circuit is a circuit that obtains power for control through a stabilized power supply circuit that receives the output of the welding power source as input. Power converter for processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7053986U JPH0324291Y2 (en) | 1986-05-09 | 1986-05-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7053986U JPH0324291Y2 (en) | 1986-05-09 | 1986-05-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62183977U true JPS62183977U (en) | 1987-11-21 |
| JPH0324291Y2 JPH0324291Y2 (en) | 1991-05-27 |
Family
ID=30912269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7053986U Expired JPH0324291Y2 (en) | 1986-05-09 | 1986-05-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0324291Y2 (en) |
-
1986
- 1986-05-09 JP JP7053986U patent/JPH0324291Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0324291Y2 (en) | 1991-05-27 |
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