JPS59143572U - Welding power source - Google Patents
Welding power sourceInfo
- Publication number
- JPS59143572U JPS59143572U JP3583883U JP3583883U JPS59143572U JP S59143572 U JPS59143572 U JP S59143572U JP 3583883 U JP3583883 U JP 3583883U JP 3583883 U JP3583883 U JP 3583883U JP S59143572 U JPS59143572 U JP S59143572U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- inverter
- power source
- signal
- 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
- Arc Welding Control (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図は本考案の実施例を示す構成図、第２図ａないし
ｄは第１図の実施例の動作を説明するための波形図、第
３図はインバータ回路の実施例を示す接続図、第４図ａ
ないしｄは第３因のインバータ回路を用いたときの第１
図の実施例の動作の一部を示す波形図、第５図は比較回
路９の実施例を示す接続図、第６図およびｂは第５図の
比較回路を用いるときの各出力信号の変化を示す線図で
ある。
１・・・直流電源、２・・・インバータ回路、３・・・
変圧器、７・・・出力電流検出回路、８・・・基準信号
設定器、９・・・比較回路、２３・・・出力漸減回路、
８１・・・上限設定器、８２・・・下限設定器。Fig. 1 is a configuration diagram showing an embodiment of the present invention, Figs. 2 a to d are waveform diagrams for explaining the operation of the embodiment of Fig. 1, and Fig. 3 is a connection diagram showing an embodiment of an inverter circuit. , Figure 4a
to d is the first factor when using the third factor inverter circuit.
A waveform diagram showing part of the operation of the embodiment shown in the figure, FIG. 5 is a connection diagram showing the embodiment of the comparison circuit 9, and FIGS. 6 and b show changes in each output signal when using the comparison circuit of FIG. 5. FIG. 1... DC power supply, 2... Inverter circuit, 3...
Transformer, 7... Output current detection circuit, 8... Reference signal setter, 9... Comparison circuit, 23... Output gradual reduction circuit,
81... Upper limit setter, 82... Lower limit setter.
Claims (1)
インバータ回路によって高周波交流を得た後に変圧器に
よって溶接に適した電圧に変換する方式の溶接用電源に
おいて、出力電流検出回路と、出力電流を設定するため
の基準信号設定器と、前記出力電流検出回路の出力と前
記基準信号設定器の出力と比較し両者の差の信号の符号
に応じて論理信号を発生する比較回路と、前記切換回路
の出力信号により起動および停止するインバータ回路と
を具備した溶接用電源。 ２ 前記インバータ回路は、前記比較回路のインバータ
停止信号を受けて前記スイッチング素子の導通時間幅を
定常動作時の時間幅から所定の勾配で減衰させる出力漸
減回路を含む回路である実用新案登録請求の範囲第１項
に記載の溶接用電源。 ３ 前記インバータ回路は、前記比較回路のインバータ
起動信号を受けて前記スイッチング素子の導通時間幅を
所定の勾配で定常動作時の時間幅に至るまで増加させる
出力漸増回路を含む回路である実用新案登録請求の範囲
第１項または第２項のいずれかに記載の溶接用電極。 ４ 前記基準信号設定器は、上限値Ｉ、を設定する第１
の設定器と下限値１．を設定する第２の設定器とを含み
、前記比較回路は前記出力電流検出回路の出力Ｎｏと前
記第１および第２の各設定器の出力とを比較し、Ｎｏ≧
Ｉ、を検出したときにインバータ停止信号を出力し、Ｉ
、≦１１を検出したときにインバータ起動信号を出力す
る回路である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溶接用電源。[Scope of Claim for Utility Model Registration] 1. Output current detection in a welding power source in which the output of a DC power source is obtained by an inverter circuit using semiconductor switching elements to obtain high-frequency alternating current, and then converted to a voltage suitable for welding by a transformer. a reference signal setter for setting an output current; and a comparison circuit that compares the output of the output current detection circuit with the output of the reference signal setter and generates a logic signal according to the sign of the difference signal between the two. A welding power source comprising: a welding circuit; and an inverter circuit that is started and stopped by an output signal of the switching circuit. 2. The inverter circuit is a circuit including an output gradual reduction circuit that receives an inverter stop signal from the comparator circuit and attenuates the conduction time width of the switching element at a predetermined slope from the time width during steady operation. A welding power source according to scope 1. 3. The inverter circuit is a circuit that includes an output gradual increase circuit that increases the conduction time width of the switching element at a predetermined gradient until it reaches the time width during steady operation in response to the inverter activation signal of the comparison circuit.Registered as a utility model. A welding electrode according to claim 1 or 2. 4. The reference signal setting device sets the upper limit value I.
Setting device and lower limit value 1. and a second setting device for setting, and the comparison circuit compares the output No. of the output current detection circuit with the outputs of the first and second setting devices, and determines that No≧
When detecting I, an inverter stop signal is output, and I
, ≦11, which is a circuit that outputs an inverter start signal when detecting .
The welding power source described in any of the paragraphs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3583883U JPS59143572U (en) | 1983-03-11 | 1983-03-11 | Welding power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3583883U JPS59143572U (en) | 1983-03-11 | 1983-03-11 | Welding power source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59143572U true JPS59143572U (en) | 1984-09-26 |
| JPH0353796Y2 JPH0353796Y2 (en) | 1991-11-26 |
Family
ID=30166525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3583883U Granted JPS59143572U (en) | 1983-03-11 | 1983-03-11 | Welding power source |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59143572U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50125948A (en) * | 1974-03-20 | 1975-10-03 | ||
| JPS5835061A (en) * | 1981-08-22 | 1983-03-01 | Sansha Electric Mfg Co Ltd | Electric power source device for welding |
-
1983
- 1983-03-11 JP JP3583883U patent/JPS59143572U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50125948A (en) * | 1974-03-20 | 1975-10-03 | ||
| JPS5835061A (en) * | 1981-08-22 | 1983-03-01 | Sansha Electric Mfg Co Ltd | Electric power source device for welding |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0353796Y2 (en) | 1991-11-26 |
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