JPS59129475U - Time constant switching circuit for frequency change of pulse arc welding machine - Google Patents
Time constant switching circuit for frequency change of pulse arc welding machineInfo
- Publication number
- JPS59129475U JPS59129475U JP2301083U JP2301083U JPS59129475U JP S59129475 U JPS59129475 U JP S59129475U JP 2301083 U JP2301083 U JP 2301083U JP 2301083 U JP2301083 U JP 2301083U JP S59129475 U JPS59129475 U JP S59129475U
- Authority
- JP
- Japan
- Prior art keywords
- time constant
- welding machine
- arc welding
- pulse arc
- capacitor
- 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
- 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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
添付図は本考案を説明するための図であって、第１図は
アークスタート時の電流、電圧、ワイヤ送給速度の関係
を説明する波形図、第２図はクレータ条件へ移行する時
の電流、電圧、ワイヤ速度の関係を説明する波形図、第
３図は本考案の一実施例を示す時定数切替回路機能を備
えたパルスアーク溶接機の電源回路の一部分の回路図で
ある。
１・・・周波数レベル設定器、２・・・オペアンプ、３
・・・周波数発生器、４・・・抵抗、５．６・・・コン
デンサ、７．８・・・接点。The attached figures are diagrams for explaining the present invention. Figure 1 is a waveform diagram explaining the relationship between current, voltage, and wire feeding speed at arc start, and Figure 2 is a waveform diagram when transitioning to crater conditions. A waveform diagram illustrating the relationship between current, voltage, and wire speed. FIG. 3 is a circuit diagram of a portion of a power supply circuit of a pulse arc welding machine equipped with a time constant switching circuit function, showing an embodiment of the present invention. 1... Frequency level setter, 2... Operational amplifier, 3
...Frequency generator, 4...Resistor, 5.6...Capacitor, 7.8...Contact.
Claims (1)
定された周波数と基準電圧とを比較出力するオペアンプ
と、該オペアンプ出力によって制御され、溶接電源を制
御する周波数発生器と、前記オペアンプの負帰還素子と
して設けられ、オペアンプの出力時定数を決定する並列
接続の抵抗とコンデンサを有して成るパルスアーク溶接
機の周波数変化の時定数切換回路において、前記抵抗、
コンデンサに、クレータスイッチ制御によって作動する
常開接点を介してコンデンサを並列接続すると共に、該
コンデンサは常閉接点を介して接地接続した構成を特徴
とするパルスアーク溶接機の周波数変化の時定数切換回
路。a level setting device for the welding power source frequency; an operational amplifier that compares and outputs the frequency set by the level setting device with a reference voltage; a frequency generator that is controlled by the output of the operational amplifier and controls the welding power source; In a time constant switching circuit for frequency change of a pulse arc welding machine, the circuit includes a parallel-connected resistor and a capacitor, which are provided as feedback elements and determine the output time constant of an operational amplifier.
Time constant switching of frequency change of a pulse arc welding machine characterized by a configuration in which a capacitor is connected in parallel to a capacitor via a normally open contact operated by crater switch control, and the capacitor is connected to ground via a normally closed contact. circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2301083U JPS59129475U (en) | 1983-02-21 | 1983-02-21 | Time constant switching circuit for frequency change of pulse arc welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2301083U JPS59129475U (en) | 1983-02-21 | 1983-02-21 | Time constant switching circuit for frequency change of pulse arc welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59129475U true JPS59129475U (en) | 1984-08-31 |
Family
ID=30154101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2301083U Pending JPS59129475U (en) | 1983-02-21 | 1983-02-21 | Time constant switching circuit for frequency change of pulse arc welding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59129475U (en) |
-
1983
- 1983-02-21 JP JP2301083U patent/JPS59129475U/en active Pending
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