JPH0259888U - - Google Patents
Info
- Publication number
- JPH0259888U JPH0259888U JP13881788U JP13881788U JPH0259888U JP H0259888 U JPH0259888 U JP H0259888U JP 13881788 U JP13881788 U JP 13881788U JP 13881788 U JP13881788 U JP 13881788U JP H0259888 U JPH0259888 U JP H0259888U
- Authority
- JP
- Japan
- Prior art keywords
- pulse width
- upper limit
- pulse
- control
- inverter
- 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
- 238000000034 method Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000003079 width control Methods 0.000 description 2
Landscapes
- Generation Of Surge Voltage And Current (AREA)
- Arc Welding Control (AREA)
- Inverter Devices (AREA)
Description
第１図は、本考案の一実施例による電源装置の
回路構成を示すブロツク図、第２図は、実施例の
パルス幅制御回路およびリミツタ回路のそれぞれ
の作用を説明するための信号波形図、および第３
図は、フイードバツク制御方式による定電流制御
回路の作用を説明するための信号波形図である。
１８……インバータ回路、３６……比較回路、
４０……パルス幅制御回路、４８……リミツタ回
路、５０……パルス幅上限値設定回路。
FIG. 1 is a block diagram showing the circuit configuration of a power supply device according to an embodiment of the present invention, and FIG. 2 is a signal waveform diagram for explaining the respective functions of the pulse width control circuit and limiter circuit of the embodiment. and third
The figure is a signal waveform diagram for explaining the operation of a constant current control circuit using a feedback control method. 18... Inverter circuit, 36... Comparison circuit,
40... Pulse width control circuit, 48... Limiter circuit, 50... Pulse width upper limit value setting circuit.
Claims (1)
バツク制御方式でインバータのスイツチング動作
を制御する定電流制御回路を備えたインバータ式
抵抗溶接機の電源装置において、 前記インバータのスイツチング動作を制御する
ための制御パルスのパルス幅に対する上限値を設
定するパルス幅上限値設定手段と、 前記制御パルスのパルス幅が前記設定上限値を
越えないようにするパルス幅制限手段と、 を具備することを特徴とする電源装置。[Scope of Claim for Utility Model Registration] A power supply device for an inverter-type resistance welding machine equipped with a constant current control circuit that controls the switching operation of an inverter using a feedback control method so that a substantially constant current flows through a material to be welded, pulse width upper limit setting means for setting an upper limit for the pulse width of a control pulse for controlling the switching operation of the control pulse; and pulse width limiting means for preventing the pulse width of the control pulse from exceeding the set upper limit; A power supply device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988138817U JPH065027Y2 (en) | 1988-10-25 | 1988-10-25 | Inverter resistance welding machine power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988138817U JPH065027Y2 (en) | 1988-10-25 | 1988-10-25 | Inverter resistance welding machine power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0259888U true JPH0259888U (en) | 1990-05-01 |
| JPH065027Y2 JPH065027Y2 (en) | 1994-02-09 |
Family
ID=31401509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988138817U Expired - Lifetime JPH065027Y2 (en) | 1988-10-25 | 1988-10-25 | Inverter resistance welding machine power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH065027Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60137582A (en) * | 1983-12-24 | 1985-07-22 | Honda Motor Co Ltd | Constant current control circuit of resistance welding machine |
-
1988
- 1988-10-25 JP JP1988138817U patent/JPH065027Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60137582A (en) * | 1983-12-24 | 1985-07-22 | Honda Motor Co Ltd | Constant current control circuit of resistance welding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH065027Y2 (en) | 1994-02-09 |
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