JPS63138972U - - Google Patents
Info
- Publication number
- JPS63138972U JPS63138972U JP2961787U JP2961787U JPS63138972U JP S63138972 U JPS63138972 U JP S63138972U JP 2961787 U JP2961787 U JP 2961787U JP 2961787 U JP2961787 U JP 2961787U JP S63138972 U JPS63138972 U JP S63138972U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- power supply
- external power
- output
- outputs
- 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
- 238000003754 machining Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案装置の基本構成図、第２図は具
体的なブロツク図、第３図は入力電圧自動切換回
路の内部回路の例図、第４図、第５図は入力電圧
自動切換回路の動作を説明するタイムチヤート、
第６図は入力電圧自動切換回路の内部回路の他例
図を示す。
（符号の説明）、１……電圧調整手段、２……
インバータ駆動部、３……制御部、３１……ＤＣ
―ＤＣコンバータ、３２……制御回路、４……入
力電圧自動切換回路、５……出力部。
Figure 1 is a basic configuration diagram of the device of the present invention, Figure 2 is a concrete block diagram, Figure 3 is an example diagram of the internal circuit of the automatic input voltage switching circuit, and Figures 4 and 5 are automatic input voltage switching circuits. Time chart explaining the operation of the circuit,
FIG. 6 shows another example of the internal circuit of the automatic input voltage switching circuit. (Explanation of symbols), 1... Voltage adjustment means, 2...
Inverter drive unit, 3...control unit, 31...DC
-DC converter, 32...control circuit, 4...input voltage automatic switching circuit, 5...output section.
Claims (1)
を判別する電圧判別回路を有し、外部電源電圧が
低い方のレベル電圧であると判断したときには切
換信号を出力する入力電圧自動切換回路と、この
入力電圧自動切換回路からの切換信号に応じて、
切換制御されることによつて入力された外部電源
を一定レベルの直流化された駆動電圧に変換出力
する電圧調整手段と、この電圧調整手段から出力
される一定レベルの直流化された駆動電圧を受け
て作動するインバータ駆動部と、負荷に供給され
ている出力を検出する出力検出器を有し、上記イ
ンバータ駆動部からの出力を負荷に供給する出力
部と、上記電圧調整手段より一定レベルの直流化
された駆動電圧を受け、ＤＣ―ＤＣコンバータを
介して制御回路に駆動電源を供給し、この制御回
路より上記インバータ駆動部に制御信号を出力す
る制御部とを備えて成り、上記入力電圧自動切換
回路の電圧判別回路は、上記外部電源が電圧レベ
ルの低い方の電圧レベルであると判断した時は、
所定の遅延時間を経過した後に切換信号を出力し
て上記電圧調整手段を外部電源電圧の種別に応じ
て自動的に切換設定できるようにしたアーク加工
装置。 It has a voltage discrimination circuit that discriminates the type of AC external power supply with two different voltage levels, and an input voltage automatic switching circuit that outputs a switching signal when it determines that the external power supply voltage is at the lower level voltage, and this input voltage. Depending on the switching signal from the automatic voltage switching circuit,
Voltage adjustment means that converts and outputs an input external power supply into a DC driving voltage at a constant level by being controlled by switching; an inverter drive section that receives the output from the inverter drive section, and an output section that supplies the output from the inverter drive section to the load, and an output section that supplies the output from the inverter drive section to the load; a control unit that receives the DC-converted drive voltage, supplies drive power to a control circuit via a DC-DC converter, and outputs a control signal from the control circuit to the inverter drive unit; When the voltage discrimination circuit of the automatic switching circuit determines that the external power supply is at the lower voltage level,
An arc machining device that outputs a switching signal after a predetermined delay time has elapsed to automatically switch and set the voltage adjusting means according to the type of external power supply voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2961787U JPH0530856Y2 (en) | 1987-02-27 | 1987-02-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2961787U JPH0530856Y2 (en) | 1987-02-27 | 1987-02-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63138972U true JPS63138972U (en) | 1988-09-13 |
| JPH0530856Y2 JPH0530856Y2 (en) | 1993-08-06 |
Family
ID=30833663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2961787U Expired - Lifetime JPH0530856Y2 (en) | 1987-02-27 | 1987-02-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0530856Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH067938A (en) * | 1991-10-28 | 1994-01-18 | Sansha Electric Mfg Co Ltd | Arc power unit |
-
1987
- 1987-02-27 JP JP2961787U patent/JPH0530856Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH067938A (en) * | 1991-10-28 | 1994-01-18 | Sansha Electric Mfg Co Ltd | Arc power unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0530856Y2 (en) | 1993-08-06 |
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