JPS627800U - - Google Patents
Info
- Publication number
- JPS627800U JPS627800U JP9838785U JP9838785U JPS627800U JP S627800 U JPS627800 U JP S627800U JP 9838785 U JP9838785 U JP 9838785U JP 9838785 U JP9838785 U JP 9838785U JP S627800 U JPS627800 U JP S627800U
- Authority
- JP
- Japan
- Prior art keywords
- field
- current
- voltage
- welding
- resistor
- 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
- 238000003466 welding Methods 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 230000005284 excitation Effects 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Control Of Eletrric Generators (AREA)
Description
第１図は本考案に係る溶接発電機の界磁制御装
置の一実施例構成、第２図は本考案に係る溶接発
電機の界磁制御装置が用いられているエンジン駆
動溶接機の一実施例構成、第３図は従来の溶接機
における溶接電流変化特性曲線を示している。
図中、１は界磁制御装置、２は整流器、３は誘
導子、４は電流検出器、５はエンジン、６は溶接
電流調整可変抵抗、７は電機子鉄心、８は界磁巻
線、９は励磁巻線、１０はバツテリ、１１は溶接
電流調整半固定抵抗、２１は電流検出抵抗、２２
は比較回路、２３は制御回路、２４は演算増幅器
、２５はホトカプラ、２６はトランジスタ、２７
は定電圧ダイオード、２８は可変抵抗、２９ない
し３３は抵抗、３４はコンデンサ、３５はダイオ
ードを表わしている。
FIG. 1 shows the configuration of an embodiment of a field control device for a welding generator according to the present invention, and FIG. 2 shows the configuration of an example of an engine-driven welding machine in which the field control device for a welding generator according to the present invention is used. Figure 3 shows a welding current change characteristic curve in a conventional welding machine. In the figure, 1 is a field control device, 2 is a rectifier, 3 is an inductor, 4 is a current detector, 5 is an engine, 6 is a welding current adjustment variable resistor, 7 is an armature core, 8 is a field winding, and 9 is a Excitation winding, 10 is a battery, 11 is a welding current adjustment semi-fixed resistor, 21 is a current detection resistor, 22
23 is a comparison circuit, 23 is a control circuit, 24 is an operational amplifier, 25 is a photocoupler, 26 is a transistor, 27
is a constant voltage diode, 28 is a variable resistor, 29 to 33 are resistors, 34 is a capacitor, and 35 is a diode.
Claims (1)
接電流調整抵抗を介して界磁巻線に界磁電流を流
すエンジン駆動溶接発電機の界磁制御装置におい
て、界磁巻線に直列に接続された界磁電流検出用
の電流検出抵抗を設けると共に、界磁巻線の端子
間電圧を標準電圧にし、これを基にした基準電圧
と上記電流検出抵抗の端子電圧とを比較する比較
回路を設け、さらに該比較回路の出力に基づき上
記溶接電流調整抵抗をオン・オフさせる制御回路
を設けたことを特徴とする溶接発電機の界磁制御
装置。 In the field control device of an engine-driven welding generator, the voltage generated in the excitation winding is rectified by a rectifier, and the field current is passed to the field winding via a welding current adjustment resistor. A current detection resistor for detecting the field current is provided, and a comparison circuit is provided that sets the voltage between the terminals of the field winding to a standard voltage and compares the reference voltage based on this with the terminal voltage of the current detection resistor, A field control device for a welding generator, further comprising a control circuit that turns on and off the welding current adjusting resistor based on the output of the comparison circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985098387U JPH0510556Y2 (en) | 1985-06-28 | 1985-06-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985098387U JPH0510556Y2 (en) | 1985-06-28 | 1985-06-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS627800U true JPS627800U (en) | 1987-01-17 |
| JPH0510556Y2 JPH0510556Y2 (en) | 1993-03-15 |
Family
ID=30966276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985098387U Expired - Lifetime JPH0510556Y2 (en) | 1985-06-28 | 1985-06-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0510556Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51149513A (en) * | 1975-06-17 | 1976-12-22 | Koichi Azuma | Power source apparatus for loading on the vehicle |
-
1985
- 1985-06-28 JP JP1985098387U patent/JPH0510556Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51149513A (en) * | 1975-06-17 | 1976-12-22 | Koichi Azuma | Power source apparatus for loading on the vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0510556Y2 (en) | 1993-03-15 |
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